The sources and compositions of steam cracking C9 cut in China and overseas were reviewed. Hydrotreating is the key technology for C9 cut upgrading. Centering on the hydrotreating utilization of C9 cuts, several new processes were summarized, including production of premium boiling aromatic solvent or gasoline blend, flash oil hydrogenation to solvent and conversion of hydrogenated C9 cuts by hydrodealkylation and transalkylation to BTX (benzene, toluene, xylene). The hydrogenation technologies, as well as catalysts used in hydrotreating, were analyzed and compared, and feedstock pretreatment, reaction process and catalyst design were discussed.

Advances in reaction characteristics，research and development and applications of metal oxides catalysts and zeolite catalysts for maximizing ethylene and propylene by catalytic cracking process are reviewed.

Selective non-catalytic reduction (SNCR) is a cost-effective technology for flue gas denitrification. The use of ammonia as a reducing agent for the SNCR system is reviewed. The reaction mechanisms and performance parameters are presented for SNCR. Additionally，the problems that may be encountered in the operation of SNCR are also discussed. In the end，some advices are given for the application of the SNCR system.

Based on the review of the process and nature of multiphase reaction，the flow features and dynamics of gas-liquid reaction in a cyclone are discussed. The enhancement of multiphase reaction with cyclone technology is presented.

Principles and targets are proposed for the design of separation process for methanol to olefins according to products distribution. Typical separation processes and DME removal technology are reviewed.

In this paper，the current studies on the catalysts for steam refroming of ethanol are reviewed; the factors influencing the catalyst properties are discussed; and the future research of the catalyst is expected.

Multi rate digital control technique has received special attention in chemical industry recently because of its good performance and strong adaptability. This paper briefly surveys the evolution history of multi rate digital control technique，and introduces the present theoretical and application research on multi rate control system. Furthermore，the existing difficulties in the research，such as data-losing and time-delay，are discussed，and corresponding approaches taken are also analyzed. Finally，the research trend of the technique is presented，with an emphasis on potential applications.

As a novel method of separation，micellar enhanced ultrafiltration (MEUF) is applicable to purifying wastewater，especially in dealing with the effluents containing low levels of metal ions. The main factors of MEUF are introduced in detail by summarizing prior research，and the limitation and the direction of optimizing the process are also discussed. The recent development of MEUF as well as the research on surfactants recovery is also introduced.

The occurrence of electrostatics is an unavoidable phenomenon in fluidized bed. The method of electrostatic control is important. The mechanism of electrostatic generation is discussed in this paper. The approaches to electrostatic control are presented，such as charge elimination devices，inner surface treatment in fluidized bed，addition of fine particle，antistatic agents，and application of electrostatic charge inducing agents. Future research trends are presented in electrostatic experimental study，electrostatic measurement，and electrostatic control method．

Computational fluid dynamics (CFD) has been widely used with its unique advantage，and it offers a new method to study the fluid dynamics mechanism. Membrane fouling and concentration polarization have restricted further application of reverse osmosis. CFD is an effective tool to study membrane fouling and concentration polarization on membrane surface. The paper introduces the application of CFD in reverse osmosis membrane separation process and its research progress.

This paper introduces the preparation of task-specific ionic liquids，summarizes the latest developments of task-specific ionic liquids in food industry，and discusses the developments of task-specific ionic liquids in preparation of raw materials，analysis and purification in food industry，as well as biotechnology. This paper also analyzes the existing problems of task-specific ionic liquids in food industry，and presents the future developments of task-specific ionic liquids in food industry.

The determination of residual pesticides is mainly divided into four processes：extraction，cleanup，concentration and detection. The methods for extracting samples include shaking extraction，soxhlet’s extraction，solid phase micro-extraction，supercritical fluid extraction，accelerated solvent extraction and so on. The cleanup methods include liquid-liquid partition process，column chromatography，sulfonation and so on. The concentration methods include evaporation and concentration，reverse-osmosis，Kuderna Danish (K-D) concentrator and so on. The detection methods include gas chromatography-mass spectrometry，fluorometry，enzyme inhibition，immunoassay，biosensor and infrared spectrometry，Raman spectrometry，and so on. The advantages and disadvantages of these methods were reviewed and the development tendency in the future was pointed out.

This review reflects mainly the research on the phosphatidylcholine analogous polymers， including both side-chain type and main-chain type. The polymers，which have the zwitterionic lipid phosphatidylcholine，possess excellent blood compatibility and high hydrophilicity. Their applications in the fields of biomedicine，biochemistry and cosmetic are discussed，including their usage as non-thrombogenic material，drug delivery nanoparticles，gene carrier，biosensors and artificial organs etc.

Polysiloxanes bearing polyether groups (polyether/polysiloxane)，as one of the important functional polysiloxanes，have been widely used for textile hydrophilic antistatic finishing，or as foam stabilizers in production of polyurethane resin，anti-foam agent，personal care and so on. Firstly，the classification，synthesis and applications of polyether/polysiloxane in various industrial processes，especially in some high-tech fields，e.g. biomedical materials，are summarized，then the modified products，such as amino，saccharide，polyurethane，benzophenone derivatives，carboxyl group modified polyether/polysiloxanes as well as the alkali metal chelated polyether/polysiloxanes，and their new developments in pesticide auxiliaries，high-energy battery electrolytes and so on，are introduced in detail.

Feather keratin (FK) is the waste of poultry industry and will cause environmental problems if it is disposed directly. Recently，the exploitation and utilization of FK has aroused wide interest. The progress of the methods of the extracting soluble feather keratin and the utilization of FK are summarized. FK is mainly used in animal feed，edible packaging materials and composite materials. It can also be used in the modification of polymers，such as polyacrylic acid to increase biodegradability. Utilization of FK as non-feed material，such as FK composite materials and FK modified materials is the future direction of research.

This paper reviews the latest development of environment-friendly anti-rust coatings at home and abroad. The base resins and their modifications，including water-borne epoxy resin，water-borne acrylic resin，water-borne polyaniline resin，water-borne inorganic zinc-rich resin，are reviewed. Nontoxic anticorrosion pigments and anti-rust mechanisms，such as nanocomposite Fe-Ti powder，phosphate，aluminum dihydrogen tripolyphosphate and so on，are also introduced. The application，existing problems and future development of environment-friendly anti-rust coatings are also discussed.

The aim of this work is to simulate and examine a batch extractive distillation process for purification of dimethyl carbonate (DMC) from the DMC-MEOH azeotropic system. The extractive solvent ethylene carbonate (EC) was used, which was also one of the reagents to synthesize DMC. The results of simulation were compared with examination in the following fields: reflux ratio, temperature of solvent, flow rate of solvent etc. The products could be separated under the following operation condition: reflux ratio in extractive distillation 0.8—1.2, reflux ratio in the distillation of EC-DMC 2—2.5; optimum temperature of solvent 65 ℃, flux rate of solvent to the azeotrope 1.85—1.95. The obtained results could be possibly used as the theoretical and practical basis for industrial equipment.

By applying rotating packed bed to replace conventional packed tower as desulfurization equipment, the effect of desulfurization efficiency were investigated with the dinuclear cobalt-phthalocyanine sulfonate (PDS) as catalyst in different volume ratio of gas-liquid, rotating speed, temperature, concentration of Na2CO3 and PDS etc. The experimental results showed that the removal efficiency of desulfurization could reach 99.0% under proper conditions. Compared with tower equipment, the high gravity method had many advantages, including higher desulfurization, lower ratio of liquid-gas, smaller equipment size.

A L-serine producing methionine auxotroplx mutant (Met-) was derived from Pseudomonas flava LJW-01 by treatment with NTG. It could accumulate 7.5 g/L L-serine when it was cultured for 3 days by adding 1g/L Mg3(PO4)2，and it had an improvement of about 50% compared with the original strain. The mutant also had good stability of descendiblity of L-serine producing.

The purpose of this study was to produce ultrafine sumatriptan succinate (SS) for dry powder inhalation formulation via reactive crystallization. The effects of mole ratio of sumatriptan to succinic acid，reaction temperature and mixing intensity on particle size and morphology were investigated. Fourier transform infrared spectroscopy，scanning electron microscopy and X-ray diffraction were used to characterize the physicochemical properties of as-prepared SS dry powder. The results showed that ultrafine particles of SS with an average size of about 1μm could be produced and well controlled under the following conditions，mole ratio (nST∶nsuccinic acid) 1∶2，at 0—15 ℃，mixing intensity 10000r/min. Furthermore，after foundational aerosol performance evaluation，the fine particle fraction (FPF) (<5μm) was increased up to 25.35%，which was approximate 5 times of the FPF value for the milled commercial SS.

Using acrylic acid，acrylamide，ammonia，urea，magnesium ammonium phosphate and sodium humate as the main raw materials，a slow-release urea with the function of water-absorption and water-retention was prepared. The synthesis conditions were optimized. The fertilizer contained 26.3% nitrogen and its water absorbency was 95 g/g in tap water. The properties of water-absorption and slow release were studied in soil，and the fertilizer’s coatings were characterized with SEM. The results showed that the largest water-holding ratio of soil with 1% of the fertilizer was 14.3%，and the water evaporation rate also decreased obviously. The released nutrients were below 80% after one month.

The effect of addition of absorbent resin on the preparation of (S)-1-phenyl-1,2-ethanediol (S-PED) from racemate by stereoinversion was investigated, with whole cells of Candida parapsilosis as catalyst. To increase the substrate concentration in reaction, absorbent resin NKAⅡwas selected, which had a relatively high adsorption amount and velocity to both substrate and product. By adding NKAⅡadsorption resin in the reaction system, substrate and or product inhibition was mitigated, and the initial substrate concentration was thus increased. According to adsorption capacity and optimal substrate concentration of reaction, a formula was established about the resin addition amount along with the change of substrate concentration. According to the formula, the PED concentration in aqueous phase could be controlled at a best level. Thus, high substrate concentration and high reaction speed could be achieved. Then 0.74 g NKAⅡ adsorbent resin was added to the system at an increased substrate concentration of 40 g/L with a pre-adsorption for 2 h before reaction. When reacting for 108 h under optimized conditions, the optical purity and yield of (S)-enantiomer reached 98.1% and 88.5% respectively, with the product concentration of 35.4 g/L.

The effect of powdered activated carbon (PAC) on the mixed liquor characteristics and membrane filtration resistance was studied by using two membrane bioreactors（Reactor 1 no PAC and Reactor 2 added PAC 500 mg/L）under the same influent and operating conditions. The results showed that adding PAC could effectively slow down the increase of viscosity，extracellular polymeric substances（EPS），tiny particulate content of the mixed liquid，and membrane filtration resistance. The membrane pore jamming model could be merged into the membrane self-resistance model，since the membrane pore jamming only worked in a very short time (≤1 min) and the particles bigger than the membrane pore and smaller than 1μm were the major matter of gelatin layer，which caused main filtration resistance.

Super-hydrophobic SiO2 thin films were prepared by sol-gel processing，a phase separation and self-assembly technique. Tetraethylorthosilicate (TEOS) was taken as the resource of silica and polyacrylic acid (PAA) was added to induce phase separation. The mircrostructure evolution of the silica films were controlled by phase separation which was enhanced properly by the addition of PAA. The effect of PAA agent on mircrostructure and the contact angle of SiO2 films were investigated. The surface of thin films was characterized with SEM. The results showed that the surface roughness of SiO2 thin film increased with the addition of PAA. After the films were modified by chemical vapor deposition of trimethylchlorosilane (TMCS)，a self-assembled monolayer of trimethylchlorosilane was formed on the films and SiO2 thin films with super-hydrophobic property with water a contact angle as high as 158° were obtained.

The influence of molybdenum content on the catalytic performance in the transesterification of dimethyl oxalate (DMO) with phenol to methyl phenyl oxalate (MPO) and diphenyl oxalate (DPO) was investigated. The results indicated that the MoO3/γ-Al2O3 catalyst with 14% Mo content gave maximal DPO yield of 6.1% and 75.1% DMO conversion. The component，structure and phase of MoO3/γ-Al2O3 catalysts were characterized by means of X-ray diffraction (XRD)，BET specific surface area，temperature-programmed desorption of ammonia (NH3-TPD)，and FTIR analysis of adsorbed pyridine.

The capacities of removing oxygen in ethylene with MnO/CaAl2O4 and MnO-Ag/CaAl2O4 scavengers at different reduction temperatures were compared. The effects of reaction temperature，pressures，ethylene space velocity，and oxygen concentration in ethylene on the oxygen scavenger capacity and residual oxygen in ethylene of MnO-Ag/CaAl2O4 scavenger were investigated. The reduction temperature for regeneration of MnO-Ag/CaAl2O4 was 180℃ lower than that of MnO/CaAl2O4. Under the testing conditions：reaction temperature 25—150 ℃，ethylene pressure 0.50—3.0 MPa，space velocity 1200—8000 h－1，oxygen in ethylene could be removed from 50—1000 μL/L to below 0.050 μL/L by MnO-Ag/CaAl2O4. The oxygen removing capacities of MnO-Ag/CaAl2O4 were more than 7.0 mL/g and 11.0 mL/g at temperature 25 ℃ and 80 ℃，respectively. MnO-Ag/CaAl2O4 could be regenerated many times and would not lead to polymerization，oxidation and other by-products of ethylene.

In the present work，micro/mesoporous silica modified with methyl groups was prepared via the non-surfactant method using tetraethylorthosilicate (TEOS) and polymethylhydrosiloxane (PMHS) as silica sources，and their structural properties were characterized with N2 adsorption/desorption，High Resolution Transmission Electron Microscopy (HRTEM) and thermogravimetric analysis (TG). The results showed that the prepared products were micro/mesoporous materials with high hydrophobility and thermal stability. Three micro/mesoporous materials with different micropore/mesopore ratios were prepared by adjusting the mass ratio of PMHS/TEOS，and the separation performance of benzene and its derivatives on the three materials were further studied by using the pulse chromatography technique. Benzene and its derivatives can be fully separated on the micro/mesoporous materials，and the retention time increased with the increase of the mass ratio of PMHS/TEOS. Henry constant，adsorption heat，separation factors followed the same order：n-butylbenzene＞n-propylbenzene＞ethylbenzene＞toluene＞benzene. Henry constant，adsorption heat，separation factors increased with the increase of the mass ratio of PMHS/TEOS.

Heavy oil pyrolysis reaction was studied with formic acid as hydrogen donor and oil-soluble organic home-made nickel salt as catalyst，in high-pressure type I CWYF - reactor under simulated thermal recovery conditions. The effect of added hydrogen donor in water on the viscosity，group composition and sulfur content of heavy oil during the hydrothermal catalytic pyrolysis reaction was investigated，and the thermal conversion behavior of asphaltene before and after the catalytic pyrolysis reaction was analyzed by using TG - DTA analysis. The results showed that heavy oil viscosity reduction rate and contents of saturated hydrocarbons，aromatic hydrocarbon increased，but contents of resin，asphaltene decreased，and sulfur content decreased，with increasing mass fraction of hydrogen donor during the pyrolysis reaction. Through hydrogen donor hydrothermal catalytic pyrolysis reaction，the asphaltene TG - DTA curve analysis indicated that weight loss of asphaltene was higher after the hydrothermal catalytic pyrolysis reaction than before the reaction. After hydrothermal catalytic pyrolysis reaction of heavy oil，the stability of asphaltene became worse.

Obesity is the major factor inducing high blood lipid，fatty liver，diabetes，cardiovascular disease and so on. And it has become one of the important problems harming the health of people worldwide. In order to obtain a new low density lipoproteins (LDL) adsorbent，chitosan (CTS)，which is polycationic，was modified to prepare a polyanionic derivative. In this paper，based on Mannich reaction，a novel polyanionic chitosan derivative—N-methylene chitosan phosphate ester (NMCP)，was synthesized by introducing the phosphorous acid into the amido group of chitosan. The chemical structure and properties of NMCP was characterized with FT-IR，XRD and dynamic contact angle meter. The absorbability of CTS and NMCP with respect to lipoprotein was also studied.

Poly(tetrafluoroethylene) (PTFE) films were pretreated with remote argon plasma and subsequently exposed to air to create peroxides. The influence of the remote plasma treatment conditions on the peroxide concentration was investigated. It was shown that the maximum peroxide concentration on the surface of PTFE film was 2.87×10－11 mol /cm2 under the optimum plasma treatment conditions of 100 W，100 s and 20 cm3/min. Peroxide is known to be the species responsible for initiating graft polymerization. This study could provide the basic data for graft polymerization initiated by plasma.

The working principle of a new separated type heat pipe using the gap of canular structure as the evaporation and condensation space was introduced in the paper. The heat transfer process and enhancement both in evaporator and condenser sections of the heat pipe were analyzed. This new type heat pipe was applied in a puddling process. The waste flue gas from the hot blast stove was used as the hot source to heat the cold mixture of compressed air and coal powder. The observed practical performance of the heat pipe showed a good agreement with the design expectation, which verified feasibility of using the separated type heat pipe for the heat transfer of the solid powder.

A series of composite-crystal nano-TiO2 powder with various contents of rutile were synthesized by the sol-gel method，and were calcined at various temperatures. The effect of rutile content on photocatalytic water-splitting for hydrogen production over composite-crystal nano-TiO2 was studied in the presence of formaldehyde as sacrificial reagent. The results showed that TiO2 with pure anatase showed the best photocatalytic activity，and increase of rutile content caused a decrease of activity，during which a fluctuation was observed. As Pt was deposited on nano-TiO2 surface by the photo-reduction method，the rates of H2 evolution increased first and then decreased with the increase of rutile content. The maximum value，which reached 40.35 mmol/(gcat·h)，was obtained with nano-TiO2 containing 9.7% rutile. A mechanism of the effect of rutile content on photocatalytic water-splitting for hydrogen production over composite-crystal nano-TiO2 was proposed.

To enhance the heat transfer and flow，both special-shape tubes including bullet-tube and twist-tube were used in the evaporative condenser，and compared with the existing round-tube. An experimental system wasset up，heat transfer coefficient and power performance of the evaporative condenser were investigated with changing operation parameters. The results indicated that heat transfer coefficient and power performance were better when the sprayed water flow rate ranged 0.05—0.065 kg/(m·s) and airflow velocity ranged 2.6—3.4 m/s. The heat transfer coefficient of the bullet-tube was 9.2%—19.0% higher than that of round-tube，while the power decreased by 2.6%—4.9%. The heat transfer coefficient of the twist-tube was 18.0%—33.1% higher than that of round-tube，and the power increased by 2.6%—4.9%. Finally，the two new types of evaporative condenser were used in industry with obvious energy and water saving.