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4 39, (2) (3), 50 m,,,,, (4), (5),,,, (6),, (7),, [ ] [1 ] Mertes A T. US ,1938. [2 ] Dirix C,Van der K,Chem. Eng. Sci.,1990,45 (8) : [3 ],,.,1990,6 (3) : [4 ],.,1990,17 (3) : [5 ],.,1996,24 (1) : [6 ],,1977, (3) : [7 ],.,1997,1 : [8 ],.,1998,19 (2) :1-4. [9 ]. [ M ].,1990 : [10 ],.,1990,6 (3) : [11 ].,2000,31 (3) : [12 ] Warnecke I J, Hussman P. Chem. Eng. Com 1989,78 : [13 ].,1998,67 (4) : [14 ],.,1997,2 : [15 ] Santacesaria E, Serio M D, Iengo P. Chem. Eng. Sci., 1999,54 : [ 16 ] Craners P, Baenackers, Van D L. Chem. Eng. Sci., 1992,47 (13 14) : [17 ].,1999,26 (4) : [18 ] Beman Y, Tanklevsky A. Chem. Eng. Sci., 2000,55 : [19 ].,1997, (3) : [20 ],.,1999,15 (3) : [ 21 ] Koeing B,Seewald L, Schugerl K. Advances in Biotech2 nology,1981,(1) : [22 ],.,2000,28 (2) : [23 ].,2000,28 (3) : [24 ].,1995,23 (1) : [25 ].,2000,1 (10) : [26 ] Forrest L P. Chem. Eng. Pro. Symposium. Series, 1966, (1) : [27 ] Mason R F. Alpha - Olefin Production [ P ]. US ,1972. :[1 ],,. [ M ]. :, :[2 ]. :A [ C ]. :,1994. :[3 ]. [D ]. :,1983. :[4 ]. [J ].,1998,33 (3) : :[5 ].., (10). :[6 ]. [ P]. : ,1989. [7 ]. [ A ]. :. : [ C]. :,

5 Journal of Chemical Indust ry & Engineering 2002 Vol123 No. 2 [ Key words] Defulfidation ; Chelate iron ; Semi water gas ; Shift gas Progress of technologies of removing mercaptans from light oil S HI Xiao2hong 1, L IA N G Feng 1, W U Xiao2chun 2 (1. Research Institute of Nanjing Chemical Industry Group, Nanjing, ; 2. Research institute of Nanjing light industry, Nanjing, , China) [ Abstract] The progress of the technologies of removing mercaptans ( thiol ) from light oil in refinery industry is re2 viewed. Some Merox processes for removing thiol are described, and the application status of thiol removing technologies devel2 oped inland is presented. The direction of research and develop2 ment for the technologies of removing mercpatans from light oil is pointed out. [ Key words] Oil ; Removing mercpatans ; Progress Progress of production technologies for petroleum naphthalene inland and abroad XU Jie (CNPC Fushun Subsidiary No. 2 Refinery, Fushun, , China) [ Abstract] The developing status of the main producing technical for naphthalene, in especial petroleum naphthalene re2 cent years inland and abroad are introduced. The problem for developing petroleum naphthalene is pointed out. [ Key words ] Naphthalene ; Petroleum naphthalene ; Yield ; Process ; Progress Development prospect of chemical industry from natural gas of Zhenjiang ZHA N G Jin2hai ( Zhenjiang Huayao Exchequer Manager ( holding) Co. Ltd., Zhenjiang, , China) [ Abstract] The resources status of Zhenjiang local chem2 ical industry and developing prospects of chemical industry from natural gas are introduced, and some proposals for developing chemical industry from natural gas are advanced. [ Key words] Natural gas ; Chemical industry ; Prospect Style and application of jet gas2liquid reactors W A N G Xiao2f u, YU Zhi2jia, HE Ren (College of Chemical Engineering, Dalian University of Technology, Dalian, , China) [ Abstract] It is the remarked character of jet gas2liquid reactors that gas and liquid are input with the style of injection. The jet gas2liquid reactors are a kind of multiphase reactors with high heat and mass transfer rates, and well mixing effects. This text general introduces the style and application of jet gas2liquid reactors. [ Key words] Alpha2olefin ; Jet ; Nozzle ; Gas2liquid reac2 tors Measures to crack for reactivator tube and weld line of heavy2oil catalytic cracker L IU X un2f en ( Yancheng Lianfu Petroleum Chemical Co. Ltd., Yancheng, , China) [ Abstract] The crack status of second reactivator of heavy2oil catalytic cracker in liquid petroleum gas plant is intro2 duced, and the causes for emerging crack are analyzed. The good effect is obtained by adopting effective measure. [ Key words ] Heavy2oil catalytic cracking ; Equipment ; Stress corrosion ; Crack Industrial application of B207 type catalyst with low ratio of steam to gas and low temperature shift S HI Xiu2qi, ZHA N G Ge, YU Jin2hua ( Research Institute of Nanjing Chemical Industry Group, Nanjing, , China) [ Abstract] The B207 type catalyst has excellent activi2 ty, stability and selectivity. The performance is brought into play in the shift reaction whose ratio of water to carbon of the first conversion is low, and ratio of steam to gas of the low tem2 perature shift furnace is 013, so the consumption and energy of ammonia synthesis system is reduced. The B207 catalyst has wide operation temperature range and stable activity. It can meet the operation requirement of medium temperature string low temperature shift processes. [ Key words] Low temperature shift catalyst ; Low ratio of steam to gas ; Industrial application Analysis of safety technical for nitrobenzene production XU Yi ( Phosphorus Fertilizer Plant of Nanjing Chemical Industry Company, Nanjing, , China) [ Abstract] The technological process of nitrobenzene production is introduced. The danger in medium, process and apparatus in production process is analyzed in the light of acci2 dent case, and the specific measure to ensure the apparatus safe2 ty in nitrobenzene production is advanced. [ Key words] Nitrobenzene ; Danger in process ; Safety measure Computer simulation of heat transfer of highly viscous fluids with varying properties in Tube QIU L ong2hui, HUA N G Kai2x un (Department of Applied Chemistry, University of Central China, Hubei, , China) [ Abstract] Computer simulation of heat transfer of high2 ly viscous fluids with varying properties in tube Is carried out, the results show that pressure drop Is influenced by properties of fluid, and employing a small tube diameter is an effective mea2 sure to minimize the difference of radial temperature. [ Key words] Varying properties fluid ; Flowing heat transfer ; Computer simulation