英文文献写作与投稿

英文文献写作与投稿The progress of the application of catalytic combustion technology for volatile organiccompoundsYuQiaozhang,(State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Zhejiang University of Technology, Hangzhou 310014,Zhejiang, China)Abstract：Catalytic combustion is one of the most effective techniques for the removal of volatile organic compounds (VOCs). In this review, the recent developments in catalytic combustion of VOCs with regard to active species such as noble metal catalysts, mixed metal oxides, perovskite and spinel metal oxide phases were examined. The effects of particle sizes of active species, catalyst supports, the water vapor effect and the coking effect on catalytic combustion were evaluated. It is found that the research on noble metal catalysts mainly focuses on developing new supports and bi-elemental noble metal catalysts; while the research on non-noble metal catalysts focuses on developing new mixed metal oxides, perovskites and spinel catalysts, as well as investigating the effects of particle sizes and various supports on the combustion activity. Additionally, as far as practical application is concerned, the effect of water vapor and coking deactivation on the catalytic combustion process are discussed. This review will be helpful in choosing an appropriate technique for the removal of VOCs by catalytic combustion with high activity and high stability.Key Words：Catalytic combustion; V olatile organic compounds; Noble metal; non-noble metal; Coking deactivationIntroduction:V olatile organic compounds(VOCs) are organic compounds including alkanes, aromatic hydrocarbons Olefins, alcohols, aldehydes, ketones, halogenated hydrocarbon etc[1]. Saturated vapor pressure more than 70 Pa at room temperature and Boiling point below 260 ℃.In daily life common sources include building materials, decoration materials, furniture of sticky Mixture, the kitchen lampblack, and motor vehicle exhaust emission, etc.;industry The main source of common chemical and petrochemical industry waste gas, the electronics industry Cleaning agent, printing industry, the production and use of paint and coating, electricity Factory boiler exhaust emissions and other industrial process. The most VOCs toxic, smell, some VOCs and carcinogenicity, to the people Body health have great harm;Under the action of VOCs in the sunlight can also With atmospheric nitrogen oxides of photochemical reaction, generate the poison Sex more photochemical smog [2]. The VOCs in recent years has become in our country One of the main atmospheric pollutants, about the harm of VOCs accidents every yearIncreased, and the purification of VOCs technology has become an environmental catalysis A research focus in the field.Usually VOCs processing methods can be divided into two categories:The one is the"Non-destructive techniques namely recycling method, general by changing certain process In the process of temperature, pressure and other physical conditions forseparating VOCs enrichment, this methods include activated carbon adsorption method, solvent absorption method, condensation method and membrane common technology such as separation;The other is called disruptive technologies, namely through chemical or biological technology for VOCs into carbon dioxide and water and hydrogen chloride non-toxic or low toxicity of inorganic matter, including such methods direct combustion, catalytic combustion, biodegradation, plasma oxidation, light push common technology such as chemical oxidation method.Various methods for types, concentration of VOCs degrees, discharged way has its own technological characteristics, its processing of VOCs process conditions and requirements also have different application scope and advantages and disadvantages. Such as, condensation process is suitable for the high concentration and small air volume of VOCs waste treatment, for VOCs waste gas of low concentration, big air volume investment to deal with Large, high operation cost, income small faults [2];Biological methods for VOCs concentration and species limits is more, most study still belongs to the laboratory scale experiment research, has not been applied in large-scale engineering [3];The adsorption method for low concentration of VOCs emissions has the very good treatment effect,But may lead to transfer the pollution from gas phase to solid phase cause secondary pollution The problem [4];Direct combustion method is suitable for treatment of high concentration VOCs waste gas,Due to its operating temperature reaches 800-1200 ℃, usually process energy consumption This is higher, and prone to dioxins in combustion exhaust gas (dioxin), NOx and other by-products;Catalytic combustion can be found in article is far lower than the direct combustion temperature under a deal with low concentration of VOCs gases, high purification efficiency, no The characteristics of the secondary pollution, low energy consumption, is the commercial application processing VOCs One of the most effective treatment method in [5]. Therefore, the researchers at home and abroad to rush a lot of related research on the combustion catalyst, the relevant question is nearIn a hot issue in the field of environmental catalysis. More than 20 years ago spivey[6]who wrote about the catalytic combustion research is very good comments, recently there are some space short english documents [7], but rarely see deeper chinese are reviewed. The author will combine the experiment The research achievements of chamber, focuses on catalytic combustion at home and abroad for nearly five years analysis, the main achievements and the catalyst active component, large particles small, the effect of carrier, the influence of water vapor and catalytic combustion reaction process such as carbon deposition in the main problems of the latest progress is summarized. Catalytic combustion in a sense can be seen as a instead of the thermal combustion oneChemical fluid, the use of the depth of the catalyst catalytic oxidation activity will beUnits under the ignition temperature (200 ~ 400℃) and oxidation hopson into nothingPoison of CO2 and H2O, the purpose of purifying [8], catalytic combustion can beHeat of combustion can't handle, low concentration of VOCs for full combustionBurn, applying a large number of auxiliary heat without continuous, not in the process of high temperature combustionWill produce NOx, burns used for preheating the consumed power only for directCombustion of 40% ~ 60%, thus can save a lot of energy [9].References:[1] Li, W. B.; Wang, J. X.; Gong, H. Catal. Today, 2009, 148: 8112 []Shah, R. K.; Thonon, B.; Benforado, D. M. Appl. Thermal Eng.,2000, 20: 631[3] Santos, S.; Jones, K.; Abdul, R.; Boswell, J.; Pacac, J. Biochem.Eng., 2007, 37: 261[4] Hester, R. E.; Harrison, R. M. V olatile organic compounds in the atmosphere. Cambridge, UK: The Royal Society of Chemistry Publishing, 1995[5] Li, W. B.; Chu, W. B.; Zhuang, M.; Hua, J. Catal. Today, 2004,93-95: 205[6] Spivey, J. J. Ind. Eng. Chem. Res., 1987, 26: 2165[7] Everaert, K.; Baeyens, J.; Hazard, J. Mater. B, 2004, 109: 113[8］Cabriele Genti．Supported palladium catalysts in environmental catalytic technologies for gaseous emission［J].Journal of Molecular Catalysis，2001,73( 2) : 287－312．[9]Kolodziej A，Lojewska J．Optimization of structured catalyst carriers for VOC combustion［J].Catalysis Today,2005,105( 3) : 378 -384．选题理由：2015年6月18日，财政部，国家发改委，环保部联合颁布了《挥发性有机物排污收费试点办法》，提出“直接向大气排放会发性有机物（VOCs）的试点行业企业（以下简称排污者）应当缴纳VOCs排污费”，并强调每一次排污口的排放的VOCs均征收VOCs排污费。