This article first presents the domestic and international industry scale，direction of product exploitation，current situation and technology in the area of natural plant product industry. Then the article sums up the main problems of the field and puts forward some strategies to resolve these problems，such as comprehensive and recyclable utilization of natural plant resource，adoption of efficient/green/low carbon mode strategy，and so on. Furthermore，some thoughts about building intensive and environmentally friendly approach to the development of natural plant industry based on the achievements of our group are presented. Finally，the article also covers the development and prospect of natural plant chemical industry according to national policy.

The present situation and research on hydrate-based carbon dioxide separation from the flue gases emitted from fossil fuel power plants or from the IGCC syngas are introduced in this paper，including selection of the promoter or the additive，CO₂ separation and capture process，and cost accounting. TBAB and THF are found to be the effective promoter and additive to improve rate of hydrate formation，to reduce the operating pressure，and to enhance CO₂ recovery. Based on the research of TBAB and THF，hydrate separation and capture processes combined with chemical absorption or membrane separation are proposed. The cost of  capturing 1 ton CO₂ of the proposed process is about USD 26，which is lower than simply chemical absorption by about 31%. With further research，the cost can be reduced and the hydrate based CO₂ separation and capture process could be promising in future.

Ionic liquids can be readily modified structurally to have desired chemical and physical properties by the incorporation of specific functional groups. Functionalized ionic liquid can be used in separation，electrochemistry，catalysis，organic synthesis and other fields，and has become a hot research subject in the ionic liquid area. In this paper，research progress of functionalized ionic liquid with fluoroalkyl，amine and other polar groups for CO₂ absorption is summarized，and the CO₂ separation performance of supported functionalized ionic liquid membranes is also introduced. The problems to be resolved in the future researches are presented.

In the vertical impinging stream reactor（VCISR），the inclination angles and layout of blades are significant factors affecting its mixing performance. In this paper，numerical methods are used to investigate the overall performance under the condition that blades are in vertically staggered arrangement in the VCISR. The inclination angle of both blades is set as 45° and staggered angles of a pair of upper and lower blades are set as 15°，30°，45°and 60°，respectively. A serial of numerical simulations indicate that when the staggered angle is 45°，the speed root-mean-square（σ）on the characteristic impact surface of VCISR come up to the maximum value 3.81，and the overall performance is the best. Under the same condition，when the staggered angle is 60°，the rotational energy consumption is minimal.

A new annular supersonic nozzle was designed for natural gas dehydration based on the principle of conservation of angular momentum. Corresponding mathematical and physical models were established. The flow characteristics of natural gas in the annular supersonic nozzle were numerically simulated with the RNG k-εturbulence model. The results showed that natural gas expanded to supersonic velocity，resulting in a low temperature in the annular nozzles. The Mach number could reach 1.85 at a low temperature of －70 ℃ at the nozzle exit. The swirling motion was generated by the vanes located at the entrance of the nozzle，leading to a centrifugal field of about 640 000g. Water could be condensed and removed from natural gas under the combined effects of low temperature and strong centrifugal field. The strong swirling flow could be obtained in the annular nozzle as a result of the central body. When the swirling flow passed through the nozzle，the expansion characteristics of the nozzle was weakened，which was different from the common Laval nozzle.

Based on the success of methyl acetate hydrolysis by reactive distillation of our former work，an integrated technology of catalytic distillation and fixed bed of methyl acetate hydrolysis process is established to increase the rate of methyl acetate hydrolysis. The influences of the position of feed，the mole ratio of water to methyl acetate，the volume ratio of reflux to feed and space velocity on the conversion of methyl acetate and the mass ratio of acetic acid to water are studied through experiment，and appropriate conditions are obtained. At the mass ratio of acetic acid to water more than 1.17，the conversion of the integrated technology of methyl acetate hydrolysis process is more than 70%，better than the hydrolysis process of former single catalytic distillation.

Under the operation condition of rotating speed of 200～1400 r/min，water flow rate of 40～140 L/h，hot air flow rate of 3～15 m³/h，the heat transfer characteristics of high gravity rotary device was studied with the water-hot air system. The experimental results showed that heat transfer coefficient increased with the increase of rotating speed，water flow rate and hot air flow rate，but the slope of increase reduced with the increase of water flow rate. The increase of heat transfer was also proven by calculation and analysis of heat transfer unit height. Finally an empirical correlation of heat transfer coefficient was derived through dimensional analysis. The statistical tests showed that the results predicted by the correlation equation were in good agreement with the experimental data.

The influence of reaction conditions on the performance of a unit cell of unitized regenerative fuel cell（URFC）was reported. The cycling performance and polarization curves of the unit cell of URFC in the hydrogen and oxygen fuel cell and water electrolysis modes were tested. The unit cell of URFC exhibited excellent performance and stability in cycling test during URFC operation. The results showed that the optimum reaction temperature was from 60 ℃ to 70 ℃ in both fuel cell and water electrolysis modes. In fuel cell mode，increasing oxygen pressure would improve remarkably the performance of URFC. At hydrogen relative humidity of 100%，oxygen relative humidity had less influence on the performance of URFC in fuel cell mode. The performance of the unit cell by oxygen without humidifying was identical to that of the unit cell by oxygen relative humidity of 100% in fuel cell mode when current density was greater than 500 mA/cm².

The in?uence of three different detoxi?cation methods（neutralization，overliming and Na₂SO₃  addition）on inhibitors were evaluated by using corn stover hydrolysate prepared with hydrothermal pretreatment（195 ℃，15 min）. Ethanol fermentability of detoxified corn stover hydrolysate was investigated by Pichia stipitis 58376. The results showed that all the employed detoxification methods resulted in a 41% reduction in average total furans and highest 28.4% reduction in total phenols. Fermentation performance was greatly enhanced by employed detoxification methods. Ethanol yield of 69.31% of the theoretical value based on reducing sugar was obtained by overliming. The corresponding ethanol concentration and volumetric productivity were 12.2 g/L and 0.056 g/（L?h）. Overliming was the most efficient detoxification method.

In recent years mesoporous molecular sieves have been widely used as catalyst supports for deep hydrodesulfurization（HDS）of oil products because of their ordered pore structure，narrow pore size distribution，large surface area，high thermal and hydrothermal stability. In this paper，the advance in application of mesoporous molecular sieves MCM，SBA，HMS，KIT，etc.，in deep hydrodesulfurization of oil products is reviewed. The effects of the different modified methods of mesoporous molecular sieves，including incorporation of metals and oxides，modification of acid，addition of phosphorus，and recombination of other supports，on the structure，morphology and dispersion of the catalyst and active phase，acidity of the catalyst，interaction of active phase with support，and the HDS catalytic activity are investigated. Furthermore，the advantages and existing problems of mesoporous molecular sieves as HDS catalyst supports are discussed，and future applied prospects are forecasted.

The recent progress of immobilized catalysts for ethylene oligomerizatioin to α-olefin is reviewed. The structures and properties of carriers，the effects of methods of immobilization，cocatalyst，and interaction between main catalyst and its carrier in immobilized catalysts on the reaction of ethylene oligomerization are discussed. The catalytic performance of a homogenous catalyst immobilized on a carrier might suffer some changes due to the changes of stereoregularity and stereospecificity of active sites and electron density of active metal centers in the homogenous catalyst，which results in the interaction of carrier with active metal when it is immobilized. Most of the immobilized catalysts exhibit low catalytic activities. Moreover，the reaction mechanism of immobilized catalysts is also discussed. It is proposed that the further work should focus on exploiting new style carriers，novel and effective methods of immobilization，and clarifying the relationship of catalyst and carrier when developing immobilized catalysts.

Catalytic combustion of volatile organic compounds（VOCs）is a highly efficient and low pollution technique. Metallic monolithic catalyst was used for eliminating VOCs because of its low pressure drop，high activity，good mechanical strength and high thermal stability. The recent developments in metallic monolithic catalyst with regard to selection of metallic substrate structure，pretreatment of metallic surface，preparation of coating and catalytic combustion of VOCs are reviewed. More efforts should be devoted not only to the preparation of high performance transition coating，but also to the use of multi-component doped precious metals and non-precious metals，such as transition metal oxide，perovskite oxide or spinel oxide as active components on the monolithic catalysts.

Research progress of preparing meta-xylenediamine by hydrogenation with catalyst from isophthalonitrile was summarized. The improvement of catalyst was reviewed. The influences of reaction conditions，including solvent，initial concentration of materials，reaction inhibitors，reaction pressure and reaction temperature were discussed.The development of reaction  flowsheet and the following separation process was introduced. The basic study of thermodynamic properties of isophthalonitrile and meta-xylenediamine，reaction mechanism and reaction kinetics，and the improvement of reaction flowsheet are the focus of further research.

Pt/Al₂O₃ catalyst was prepared from CTAB/butarol/cyclohexane/H₂PtCl₆ microemulsion，with hydrazine as reductant and Al₂O₃ as support. The effect of composition of microemulsion on the activity for selective hydrogenation over Pt/Al₂O₃ catalysts was studied by using o-chloronitrobenzene selective hydrogenation as a probe reaction. The support and catalyst were characterized by XRD，XPS，IR，TEM and EDS.  The results showed that the Pt/Al₂O₃ catalyst made from the microemulsion with CTAB：butarol：cyclohexane mass ratio of 9∶21∶70 and H₂PtCl₆ concentration of 3.6% exhibited the highest activity in selective hydrogenation of o-CNB. Pt particle size was about 5 nm，and the electronic effect between Pt particle and carrier was not significant. It was also found that Pt/Al₂O₃ catalyst also exhibited higher activity for the hydrogenation of m-chloronitrobenzene and p-chloronitrobenzene with different substituted positions.

A preliminary kinetics model of the non-mercuric homogenous catalytic hydrochlorination of acetylene was established. Compared model（Ⅰ） and model（Ⅱ） by the phase equilibrium and reaction kinetics data in the PtCl₄/primene^TM JM-T/dodecane system， it was concluded that model Ⅰ may outperform model Ⅱ in terms of goodness of fit. And k₁^′=5.2，k₂^′=3.7 and k_－1=1287.8，test of significance F=3.801. According to model Ⅰ，the reaction mechanism is that catalyst Pt（Ⅳ）adsorbs with acetylene and then reacts with hydrogen chloride，and the former step is  rate determining.

Lithium，the lightest metal element in the world，is an important strategic resource because of its wide use in the national economy. In the industrial chain of lithium and its derivate，lithium is processed to kinds of lithium salts，including the primary products such as Li₂CO₃，LiOH，LiCl，and the further processed products such as LiBr，LiF，Li，etc.，which can be widely used in the areas of batteries，ceramics，glasses，alloys，lubricants，refrigerants，drugs，nuclear，and photoelectric. In the present work，the techniques，markets，and industrial development conditions of the lithium products in the key production links in the lithium industrial chain were reviewed. Furthermore，the development strategy of the lithium industry was analyzed：the extracting technique of lithium from brine should be improved during the exploring section firstly；then the industrial chain should be further strengthened to diversify the products；the recovery of the renewable lithium products should be paid more attention finally.

Graphene has unique structure and excellent performance，and its preparation methods are presented. The emphasis is focused on the major doping methods of graphene nanocomposites，such as element doping methods，including non-metallic elements and metallic elements doping methods，compounds doping methods and carbon materials doping methods. These nanocomposite materials are widely used，especially in the supercapacitor，sensor，hydrogen storage，and biomedical areas. Some problems about the processing of grapheme are presented，such as easily getting folded，instability of dispersion and so on. The future trend of application is discussed，for example magnetism and optical property.

As an abundant resource in China，coal bed methane can be used as an effective supplement to natural gas at the present age of energy crisis. In this paper，several kinds of CH₄/N₂ separation technologies，cryogenic technology，hydrate technology，dissolution technology，membrane separation and pressure swing adsorption（PSA）are reviewed with the emphasis on their separation principles and technology development together with their problems. The progress of separation performance for CH₄/N₂ mixtures of such porous materials as activated carbon，carbon molecular sieve，zeolite and novel porous metal organic frameworks（MOFs）is discussed. MOFs could be a promising PSA adsorbent because of adsorption leap with temperature or pressure.

Aiming at the disadvantages of carbon series materials，and referring to electromagnetic shielding mechanism，this paper introduces the research progress of carbon-filled electromagnetic shielding composites，such as carbon black，graphite，carbon fibers and carbon nanotubes. Because carbon series materials are nonmagnetic，great progress has been made in applications of surface coating nanolayer and magnetron sputtering ion plating process to overcome this disadvantage. New carbon-filled materials，such as graphene，buckypaper are also reviewed. The development of carbon-filled electromagnetic shielding polymer composites，such as general-purpose，broad band，random，and high absorption is discussed.

Diamondoids are cage-like saturated hydrocarbons consisting of fused cyclohexane rings. This family of organic compounds follows the general chemical formula of C_4n+6H_4n+12. Adamantane is the smallest member of the diamondoids family with n=1，whose C skeleton structure is similar to the diamond lattice. The preparation methods and applications of diamondoids are summarized and reviewed in this paper. The reported preparation methods of diamondiods include chemical synthesis and isolation from crude oil or natural gas. However，the present research still focus on chemical synthesis. Due to the special cage structure and the superexcellent physical，chemical and pharmacological properties，potential & tremendous application prospects of diamondoids will appear gradually in pharmacy，fine chemicals，nano-technology，aviation fuel，funcational materials，et al. Diamondiods chemistry will become an important branch of organic chemistry in the near future.

Sulfobutylated cellulose ether（SBC）was synthesized with cotton pulp（cellulose）and 1,4-butanesultone（BS）as raw materials. The structure of SBC was characterized by means of FT-IR，¹³ CP MAS，SEM，and XRD. The effects of degree of polymerization of cellulose，mol ratio of raw materials，reaction temperature and reaction time on water freduction unction were investigated．The mechanism of water reduction of the SBC was studied by investigating surface tension of the water-reducing agent aqueous solution and ζ-potential of water-SBC-cement system. The water-reducing agent hardly changed the water surface tension，its tropism on the interface of gas- liquid was very small，and there was a lack of the effect of attracting gas for the cement. The result of attaching SBC to the surface of cement particles made the cement particles carry identical electric charge and repulse each other，and finally become well dispersed to cause water reduction.

Ag/PA-6 composite particles were prepared with the combined dropping nonsolvent method and cooling temperature method in the presence of Ag particles in PA-6 formic acid solution under ultrasonic irradiation. The characterization results showed that Ag/PA-6 composite particles had abnormity and compact surface structure. The almost whole of Ag particles were encapsulated by PA-6，and no dissociative Ag particles surrounded PA-6 particles. With the same amount of 20% inorganic particles，composite particles prepared with phase separation had larger encapsulation ratio than those prepared with dispersion polymerization. The former encapsulation ratio was 81%，and the latter encapsulation ratio was 47%.

Femtosecond laser induced micro-organisms mutation has become a new microbial technology，because of its characteristics of ultrafast pulse，high peak power and focusing on a small size. In this paper，compared to the advantages and disadvantages of the traditional low-power He-Ne laser irradiation，the technology of femtosecond laser induced micro-organisms mutation is discussed. Meanwhile，compared to traditional laser mutation mechanism of micro-organisms，the mechanisms of multi-photon absorption，formation of plasma，formation of reactive oxygen species，DNA damage and self-repair are summarized. Finally，the prospect for technology of femtosecond laser induced micro-organisms mutation is given，and the combination of key-enzyme activity measurement and dynamics parameters determination is important in choosing the technological parameters of femtosecond laser induced micro-organisms mutation.

Nonaqueous whole cell-based biocatalysis，as an important part of biocatalysis，which can enhance the solubility of poorly soluble compounds，change the thermodynamic equilibrium in favor of product synthesis and so on. In this paper，we introduce the selection of organic solvents and biocatalysts in nonaqueous whole cell biocatalysis system，such as lgP method，computer aided molecule design based on high product extractability，and solvent resistance of biocatalysts. Moreover，we review the methods to improve cell catalytic activity in nonaqueous media，including screening and construction of extreme microorganisms，cell immobilization，and recent application of nonaqueous whole cell-based biocatalysis in spices，drugs and medicine intermediates. Finally，we propose the main efforts on nonaqueous whole cell-based biocatalysis in view of biology and engineering.

The effects of polyepoxysuccinic acid（PESA），phosphorus，ventilation，initial amount of heterotrophic bacteria and pH value on the growth of heterotrophic bacteria in the water using PESA as a water treatment agent were studied by the flat-dish numeration method. The results showed that PESA had little influence on the breeding of heterotrophic bacteria at a low concentration，while it promoted the growth rate of heterotrophic bacteria as its concentration increased. The higher the concentration of phosphate，the more the amount of heterotrophic bacteria in the stable breeding period. Ventilation had no effect on the growth of heterotrophic bacteria. The initial amount of heterotrophic bacteria had little influence on the amount during the balance period. The pH value had a significant impact on the breeding of heterotrophic bacteria.

The research progress of bis-quaternary ammonium salt as corrosion inhibitor is reviewed. Bis-quaternary ammonium salt is a new kind of cationic Gemini surfactant. Due to its low toxicity，good surface activity and good water solubility，it is a promising corrosion inhibitor. According to molecular structure，bis-quaternary ammonium salt is classified into three categories：symmetrical alkyl bis-quaternary ammonium salt，symmetrical heterocyclic bis-quaternary ammonium salt，and non-symmetrical bis-quarternary ammonium salt. The testing results of corrosion inhibition of such three categories are summarized. The research of bis-quaternary ammonium salt is not systematic，and future research will focus on environment-friendly bis-quaternary ammonium salt，inhibition mechanism and industrial applications.

Biocide and resin are the key components which determine the performance of marine antifouling coating. Research progress of natural product biocides and synthetic bioactive molecules for novel marine antifouling coatings in recent years is reviewed in this paper. In addition，resins for novel marine antifouling coatings are classified according to the antifouling mechanism. Tin-free self-polishing resin，biodegradable resin，resin containing antibacterial functional groups，low surface energy resin and resin with microphase-separated structure are introduced. The future development of novel marine antifouling coatings is also prospected，that is，environment-friendly and method- friendly coatings.

Starch glycidyl methacrylete（GMA）graft copolymers（St-g-GMA）were synthesized by emulsion polymerization with cassava starch and GMA as raw materials and potassium persulfat as initiator. St-g-GMA was modified by ethene diamine into an amino-modified starch（AMS）. The application of AMS in a single ionic liquid under different conditions as well as in electroplating waste water，and its recycling were investigated. The results showed that temperature had no significant effect on the removal rate of heavy metal ion，but pH，amount of modified starch and stirring time had great impact on removal efficiency. When modified starch was added into electroplating waste water，heavy metal ions were nearly completely removed，and water quality was up to national effluent standards.

Through acetylation，demethylation and sulfonation，2-hydroxy-4- methoxy-5-sulfonic acid benzophenone was synthesized from resorcinol and the experimental conditions，such as materials ratio，reaction temperature and reaction time，were investigated. Proper experimental conditions for acetylation reaction were found as：n（1,3-dimethoxy benzene）∶n（benzoyl chloride）∶n（anhydrous AlCl₃）= 1∶1.05∶1.05，reaction temperature 0—5 ℃，reaction time 3 h；proper demethylation reaction conditions were found as：n（2,4-dimethoxy-benzophenone）∶n（anhydrous AlCl₃）= 1∶(1.05～1.10)，reaction temperature 20—25 ℃，reaction time 3 h；proper experimental conditions for sulfonation reaction were found as：n(2-hydroxy-4-methoxy benzophenone)∶n(chlorosulfonic acid)= 1∶1.05，room temperature. The yield of 2-hydroxy-4-methoxy-5-sulfonic acid benzophenone was 72.35% based on 1,3-dimethoxy benzene and the purity was 99.21% as determined by HPLC. The molecular structures of 2-hydroxy-4-methoxy-5-sulfonic acid benzophenone and its intermediates were identified by ¹H-NMR，¹³C-NMR and FT-IR.

Chitosan sulfate prepared from chitosan and sulfuric acid was characterized by IR and EA. Under the catalysis of chitosan sulfate，dimethyl itaconate was synthesized with itaconic acid and methanol as raw materials. The influence of synthesis conditions，such as ratio of acid to alcohol，time，amount of catalyst and temperature on dimethyl itaconate yield was studied. The optimum conditions were as follows：The amount of chitosan sulfate was 2% of the total mass of reactants. n(methanol)∶n(itaconic acid)=7∶1，reaction temperature 140 ℃ and reaction time 6h. Under the conditions mentioned above，the yield of product was 86.6%. Dimethyl itaconate was qualitatively analyzed by GC-MS and its purity analyzed by GC was above 98%. The catalyst used was treated by drying and the yield of treated catalyst was up to 84.0% with the catalyst used for 5 times.

This paper studies the utilization of the upper liquid in  trans-glycosidation of starch and alcohol. The upper liquid was used to replace the long-chain alcohol in trans-glycosidation for synthesis of starch polyglycosides with starch. The optimum reaction conditions were determined with the degree of polymerization as the optimization objective. The product was characterized by FT-IR，GC-MS. The physico-chemical properties were contrasted with the starch polyglycosides produced from starch and alcohol. The results demonstrated that the synthesized product was starch polyglycosides，and the properties were up to national standards. The recycling method was feasible for industrial production.

Porous fence，which is an effective method to abate dust emission in a bulk material storage yard，has been used in many practical applications and aroused extensive attention in academic fields. In this paper，the current status and progress of porous fence are summarized，including mechanisms，progress of numerical simulation and several influence parameters on the shelter effect. Simultaneously，a porous fence with deflector，which plays a guiding role and directs the air flow up to a certain angle in order to reduce the direct impact on the windward surface of the bulk material pile is introduced，the shelter effect of the new porous fence is investigated numerically. The present imperfection and direction of future research are also discussed.

Mercury pollution in coal-fired flue gas is thought to be another big pollution problem. The research progress of mercury emission control is summarized. Currently many strategies for mercury control are being investigated，and wet scrubbers and dry injection of a sorbent，such as activated carbon into the flue gas are the most promising technologies. But there is still no single best technology that can be broadly applied. Several new mercury control technologies are introduced and their application prospects are discussed.

ZSM-5 zeolite membranes were prepared by the second growth method，and were characterized with XRD and SEM. The membranes were modified by Ag⁺，Cu^{2 +}，Fe³⁺ metal ions with different ion concentrations，and the modified membranes were used to remove benzothiophene and 2,5-dimethylthiophene from simulated gasoline. The effects of temperature of metal ion loading solution and regenerated membranes on desulfurization were also investigated. The results showed that the best separation factor of sulfides amounted to 1.65 by ZSM-5 zeolite membrane loaded with 0.2 mol/L Ag⁺ solution. The optimum metal ion loading solution temperature was normal temperature at 25 ℃. Regeneration results showed that ZSM-5 zeolite membranes had good stability.

Ag doped AgY zeolite adsorbents were prepared by introducing silver into the framework of NaY zeolite with microwave-assisted liquid ion exchange. Adsorbents were characterized with X-ray diffraction（XRD），N₂-adsorption specific surface area measurements（BET），X-ray photoelectron spectroscopy（XPS），and scanning electron microscope（SEM）. With thiophene/petroleum ether model oil as feedstock，the effects of adsorption temperature，adsorption time，and mass of AgY adsorbent on desulfurization were investigated. The results demonstrated that the best adsorption conditions were adsorption temperature 40 ℃，adsorption time 30 min and ratio of adsorbent mass and model fuel volume of 1∶40. Under such conditions，desulfurization ratio reached 98.46%. Static equilibrium adsorption capacity was 0.7970 mmol/g at 40 ℃.

The degradation of methylene blue by catalytic oxidation in Na₂WO₄-H₂O₂ system was discussed. The results showed that the degradation rate of methylene blue was near 100% after 40 min of reaction in Na₂WO₄-H₂O₂ system．The optimum conditions for 100mL methylene blue（10 mg/L）degradation were as follows：reaction temperature 60 ℃，sodium tungstate（0.01 mol/L）dosage 7.0 mL，30% H₂O₂ solution dosage 3.5mL. The degradation of methylene blue was effective in a wide range of pH value（1～14）. The UV-Vis spectroscopic analyses found that the characteristic absorption peaks originally in 664 nm，614 nm and 292 nm，244 nm disappeared，indicating that hazardous organic compounds were transformed into small molecules. Under these conditions，reaction rate constant for methylene blue degradation was 0.0879 min^－1，activation energy was 34.61 kJ/mol. The degradation of methylene blue in Na₂WO₄-H₂O₂ system accorded well with the first-order kinetics mode1.

Some shortcomings for the known techniques for coal-gasification wastewater treatment with high phenol concentration are low removal rate of phenols，high energy consumption，etc. A novel process was proposed based on the analysis of known pretreatment techniques. Two noticeable improvements were established in the proposed process to overcome the shortcomings. One is that CO₂ was absorbed by wastewater to reduce the pH value of the extraction unit to ensure high phenol removal performance，and the other was that extraction of phenols was the first unit in the pretreatment process. Some key operational parameters of the proposed process were analyzed and optimized though simulation. It was shown that desired purified water was obtained. The operating cost was significantly lower than that of some known techniques.