Chemical process intensification technology is regarded as an effective means to address the problems of “high consumption of energy，high pollution and high consumption of raw materials” in chemical industry，and is expected to bring significant innovations to the chemical industry. China has shown unique characteristics and advantages in chemical process intensification technology thanks to the fundamental research and technology development in this field for many years. This paper reviews advances in some typical chemical process intensification technologies，such as high gravity technology，membrane process coupling technology，microchemical technology，magnetically stabilized bed technology，plasma technology，ionic liquid，supercritical fluid technology，microwave technology，etc.

The recent advance in technology for production of aromatic hydrocarbons, such as catalytic reforming, aromatics extraction, toluene disproportionation & transalkylation, xylene isomerization and p-xylene(PX) separation is reviewed. Meanwhile, the new technologies of combined reactions, combined separations, toluene methylation and light cycle oil to aromatatics are introduced. The prospects for future development of new technologies in aromatics production are also presented.

The recent progress of micro-, chemical, biological and thermal systems and micro-fabrication in China is reviewed. Due to the inherent miniaturization, and intensification of heat and mass transfer, micro-reactors have great potential in chemical reactions, such as liquid phase reactions, gas phase reactions and nano-scale particles synthesis. It is reasonable to apply the microreactor technology to some highly dangerous reactions or the reactions with the products that are costly or difficult to obtain by using conventional methods. Great progress has been made in applications of microfluidics in biological analysis and testing. Nevertheless, the size of analytical apparatuses remains more or less unchanged. Further miniaturization of the analytical apparatuses is of vital importance in practical applications. Although the great advance has been achieved in the fields of micro thermal systems, there is still a lack of fundamental understanding of the heat and mass transfer in the systems. With increasing interest and investment for micro-engineering, the fabrication technologies will surely be developed much faster than before. Standardization of these technologies will be needed in order to achieve commercialization. A new industrial sector can be expected with the application of micro- technology to high tech products.

Heat transfer rate can be effectively enhanced by modifying the flow and thermal characteristics of the heat transfer fluid and the surface properties by applying nanotechnology. The progress of applications of nanofluids，latent-heat thermal fluids by using nano-encapsulation phase change materials and nano-coated surface in heat transfer enhancement are summarized. The mechansims of heat transfer enhancement for the different nanotechnologies are analyzed，the existing problems in these researches and the prospect of application are discussed.

Distillation is one of important chemical separation processes. The scale-up of critical equipment is required by modern distillation technology. Many difficulties，such as liquid-level gradient，fluid distribution，deformation of column internals and long period operation，greatly affect the scaling of tower. To solve these problems，computational fluid dynamics（CFD），mechanical analysis and process simulation technology，theoretical and technical research of column enlarging have been used by Tianjin University，and the design and manufacture of large-scale distillation equipment are improved and successfully used in the ten million tons refinery and million tons ethylene project with good economic and social benefits. The key technologies on tower large scaling and their application are introduced in this paper by the description of an industrial case（8 millions t/a vacuum distillation column）.

Column internals industry is an auxiliary part of process industries and also affects the product quality，energy consumption，operation safety and wastes control. In the last 20 years，domestic column internals industry has got great development with higher design level and greater technology power. Meanwhile it also has experienced some difficulties and frustration. Step by step，China will become the center of global column internals industry in the future. The current situation of domestic column internals industry is analyzed in terms of both market and technology so that a proper strategy could be found for its long-term development.

In this paper, the recent developments and applications of technologies of carbon dioxide removal  from the recycle stream of F-T synthesis are reviewed. Because of complicate composition of reaction gas, the process of carbon dioxide removal requires less-loss of useful gas，no side-reaction between solution and gases，and lower heat consumption. The new technologies of carbon dioxide removal from the recycle stream of F-T synthesis developed and applied by Research Institute of Nanjing Chemical Industry Group has the advantages of low hydrocarbon loss，stable solution，low heat consumption for solution desorption. The heat consumption for solution desorption is reduced by 30% than the conventional technology.

The progress of CFD simulation in gas-solids fluidized bed, based on Eulerian-Eulerian model and Eulerian-Lagrangian model, is reviewed. In addition, the numerical studies on the gas-solids fluidized bed with or without immersed tubes made by the Institute of Chemical Engineeringof Qingdao University of Science & Technology and devices developed in application are presented. Based on the simulation results, some improvements of the internal structure of fluidized bed for enhancement of mass and heat transfer are also proposed.

Forward osmosis（FO）is a concentration-driven membrane process，in which water transports across a semi-permeable membrane from a dilute feed solution into a concentrated draw solution. The basic factors of FO（driving force，draw solution and membrane materials）are introduced. The major hindrance to permeate water flux performance is the prevalence of concentration polarization on both sides of the membrane. Flux models that account for the presence of both internal and external concentration polarization for the two possible membrane orientations are presented. Internal concentration polarization is found to play a significant role in the reduction of driving force. This article comments the effect of membrane material，feed solution concentration，and draw solution concentration on FO and pressure-retarded osmosis（PRO）water flux performance. In addition，membrane fouling as well as energy consumption of FO is evaluated.

The rapid formation of gas hydrate is key to the application of gas hydrate technology in the fields of natural gas transportation and storage，mixture gases separation，wastewater treatment，cool storage by hydrate，aqueous solutions concentration，etc. The gas hydrate formation mechanisms are introduced in this paper. And the methods and technologies on how to promote and accelerate the formation of gas hydrate are systematically summarized based on the latest research reports. The advantages and drawbacks，as well as application prospect of each method proposed for accelerating hydrate formation are discussed and prospected.

In view of the blind development of coal-based chemicals and coal-to-liquid in China，the author makes the following suggestions to achieve a scientific development of coal-based chemicals and CTL. Firstly，to stick to the principle of “Being in proportion and in order”. Secondly，to develop CTL instead of coal-based methanol ether fuels to produce coal-based vehicle fuels. Thirdly，to develop the coal-based petrochemicals and CTL by watching closely the international markets of crude oil and petrochemical products and analyzing carefully the market competitiveness of coal-based products. Fourthly，to actively promote creating a strong synergy in the form of joint investment by and between coal mining enterprises and petrochemical enterprises.

Since the last decade of the 20th century，due to the coal-dominated energy structure，increasing energy demand and the environment problems in China，building resources，energy，environment integrated and sustainable development energy system is the direction of China’s energy strategy. Coal staged conversion poly-generation system，integrating resources，energy，and environment realizes overall optimality. The main three poly-generation technologies，including coal pyrolysis and combustion poly-generation technology，coal partial gasification poly-generation technology and coal gasification poly-generation technology，are presented in this paper. A steam，electricity，coal gas and tar poly-generation technology is introduced，including detailed process of the poly-generation system and operating characteristics. Finally，based on the combined cycle poly-generation system，the energy-conservation and emission-reduction of the system are evaluated. The result shows that the power plant using coal staged conversion combined cycle poly-generation，is much more economical and energy-conserving than the traditional power plant.

Driven by inferior crude oil supply and strict product specifications，residuum hydroprocess is gradually becoming a major upgrading process and being quickly developed. The development status，its application characteristics and its development trend are discussed. It is believed from the application viewpoint that the fix bed process will still be the major selection by the industry，but how to process more inferior feedstock and extend its on-through time are the technical problems to be resolved. The ebullated bed process has very good application future and can be a good combination method with fix bed process if its high investment and operating difficulties can be resolved. The slurry bed process has its unique advantages while treating the ultra heavy crude.

Petroleum is an important resource. Crude oil supply security is highly significant for the national economic development. The situation of China’s crude oil supply security is analyzed in detail with seven indicators. The analysis result shows that China’s crude oil supply security situation is at risk.

Technological progress of synthetic natural gas（SNG）is reviewed，mainly including direct synthesis from coal，indirect synthesis from syngas，methanation of carbon dioxide，synthesis from biomass and coke oven gas. The characteristics and the corresponding equipments for these technologies are discussed. By comparing their economical efficiencies and applicabilities，the development of the synthetic natural gas technologies is prospected.

Biorefinery that utilizes renewable biomass for production of fuels，chemicals and bio-materials has become more and more important in chemical industry than ever before. Biotechnological platforms and thermochemical platforms are developed to transfer the efficiency and logic of fossil-based chemistry and petroleum refinery as well as energy production onto the renewable biomass industry. This article presents the up-to-date development of biorefinery in technologies and applications from the aspects of renewable feedstocks，bioconversion technologies，and thermochemical technologies. Future perspectives are discussed.

The progress in the production, properties measurement and application of biodiesel from different available feedstocks is reviewed. The most recent researches on cost cutting, energy saving and environment-friendly technologies for biodiesel production are presented. Use of non-edible oil as feedstock of biodiesel, and direct utilization of raw oil and waste oil are the problems to be resolved. Solid catalyst, supercritical and subcritical transesterification are key issues of R&D. Formarket application of biodiesel, it is a pre-requisite to build a complete database of physicochemical properties, storage, transportation, combustion, compatibility of biodiesel from different feedstocks as well as their blends with petro-diesel.

Cellulose ethanol has become a priority of research with a bright future. It may become one of the most important renewable energy sources in the future.  Cellulose ethanol research & development is reviewed, and the development history and the latest worldwide progress of cellulose ethanol research & development are summarized. The difficulties and problems in current cellulose ethanol commercialization are analyzed. The directions of research & development are presented.

This paper introduces the progress of fermentation dynamics and ethanol separation，and discusses the fermentation and separation process in fuel ethanol industry from the standpoint of chemical engineering. The fluid dynamics，heat transfer，mass transfer are coupled with fermentation reaction，which affects fuel ethanol process. Using the theories and methods of chemical engineering to study fuel ethanol bio-reaction，scale-up and process innovation will be a main trend of this field.

In recent years，non-precious metal oxygen reduction catalysts have gained particular interest for low temperature fuel cells. This paper presents the research progress of non-precious metal oxygen reduction catalysts developed by Institute of Electrochemical and Energy Technology in Shanghai Jiao Tong University with focus on the effort to improve the activity and durability of the catalysts，to decrease cost of the catalysts，and to develop novel non-precious metal catalysts. The urgent problems and future research focuses for non-precious metal oxygen reduction catalysts are also proposed.

The development of Ziegler-Natta catalyst is presented. Magnesium alcohol system catalyst has many merits，such as perfect particle form，high activity，sensitive hydrogen adjustment，low catalyst preparation cost，and can be used in various polymerization processes like gas-phase polymerization and spheripol preparation. The current research of magnesium alcohol system catalysts is reviewed in terms of catalyst activity，polymer bulk density，stereospecificity and particle form. The researcher could improve catalyst performance by studying carrier preparation，electronic donor type and preparation process.

The catalytic conversion for higher alcohols from syngas（CO+H₂）has been investigated extensively in the field of energy and chemical engineering during the past decades. Catalyst design with high selectivity，activity and excellent stability is extremely important for the process of higher-alcohol synthesis. In this paper，the extensively investigated catalytic systems for higher-alcohol synthesis including modified methanol catalysts，Cu-Co based and MoS₂-based catalysts are reviewed and the research progress is summarized. The advantages and main problems of the catalysts were analyzed. Combined with the up-to-date achievements，the possible near future directions of higher-alcohol synthesis catalysts are outlined.

Smart membranes，which are able to respond to environmental physical and chemical stimuli，are important achievements in the field of biomimetic functional membranes and are attracting much attention all over the world.  In this paper，the progress of the development of smart membrane materials are reviewed，and especially thermo-responsive，pH-responsive，photo-responsive，molecular-recognition-responsive and glucose-responsive membranes are introduced.

In this paper，the importance of developing polyglycolic acid（PGA）product is presented in light of the progress of coal chemical industry. The barrier property，machining performance，biodegradation，wide use and commercialization of PGA are introduced. Various preparation methods about polyglycolic acid resin are compared according to literature，and two synthesis routes of direct polycondensation and ring-opening polymerization are discussed with respect to catalysts and polymerization conditions，and several modification methods of PGA applications are also reviewed. Furthermore，regarding the development trend of new PGA materials in China，the attractive future in this field is prospected.

Star polymers are nonlinear polymers which have widespread theoretical significance and industrial application，and have become a research focus in polymer field owing to their unique structure，morphology，and functionality. The recent progress of homo-arm star polymers，hetero-arm star polymers and dendrimer or hyperbranched star polymers is reviewed.

Li_1+xV₃O₈ is an important electrode material for lithium ion batteries，which can be used as cathode material for traditional lithium ion batteries and anode material for aqueous rechargeable lithium batteries. It has been researched extensively as cathode material for traditional lithium ion batteries. Besides this，the application of Li_1+xV₃O₈ anode material in aqueous rechargeable lithium batteries has attracted much attention. The research advances in Li_1+xV₃O₈ as active material for traditional lithium ion batteries and aqueous rechargeable lithium batteries are reviewed. The development trends of Li_1+xV₃O₈ are pointed out.

Principles for enhanced biological phosphorus removal and metabolism mechanism of polyphosphate accumulating organisms（PAOs）& glycogen accumulating organisms（GAOs）are introduced in this paper. The effects of different carbon sources on competitions between GAOs and PAOs are discussed，and changes of phosphate removal efficiency and the microbial community are analyzed based on the recent researches. Furthermore，some measures are put forward to resolve the problem of  PAOs-GAOs competition.

Chitasan and its derivatives are noted for non-toxicity，biodegradability，biocompatibility and antibacterial activity. But poor solubility of chitosan limits its application. Modification of chitosan is an effective way to enhance its water solubility and antibacterial activity. The studies on antimicrobial activity of chitosan and its derivatives in recent years are reviewed. The antibacterial mechanism and factors that affect the antibacterial activity are discussed.

The author predicts the flame retardant（FR）marketing in the coming five years，looks back and ahead for the non-halogenation of flame retardancy，and compares the advantages and disadvantages of bromine FR（BFR）and phosphorus FR（PFR）. Futhermore，opportunities and chanllenges for developing organic PFR（OPFR）are discussed，and the recent progress of OPFR industry is reviewed. In addition，the author analyzes China’s favorable situation in the development of OPFR，and put forward his suggestions in this aspect.

With the increasing reliance on fossil fuels，the CO₂ emission issue is not only an environmental problem，but also a problem of international relationship and human life. As a resource，CO₂ can be converted to valuable products，and this is very promising pathways for CO₂ mitigation. In the present paper，the advance in chemical utilization of CO₂ is reviewed based on the research works of the authors’ group.

On the basis of the data of 38 coking plants，the technical development of coking process is reviewed. The effluents of coking wastewater with respect to the size of coke oven，the process of coke quenching and the proportion of caking coal are compared. The changes in composition of coking wastewater with respect to the recovery of chemical products，local coal quality and management level are analyzed. The influence factors of coking wastewater composition are identified. Development of new coking technology，combined with the intensification and integration of unit processes，is an effective way to control industrial pollution with the purpose of cleaner production and resource recycling.

The principles and methods of seawater desalination and water treatment as well as their application progress are presented. The impact of discharged concentrated brine from seawater desalination plant is highlighted. The discharge can lead to substantial increase in salinity and temperature，and accumulation of metals，hydrocarbons and toxic anti-fouling compounds in receiving waters. The potential impacts of the concentrated brine composition，salinity，heat contamination，corrosion products and chemical additives are summarized. Measures to avoid adverse effects are also discussed. Zero liquid discharge（ZLD）is an effective way for sustainable seawater desalination.