文献类型：期刊文献

英文题名：Solid concentration in circulating fluidized bed reactor for the MTO process

作者：Wang, Biao[1]; Li, Tao[1]; Sun, Qi-Wen[2]; Ying, Wei-Yong[1]; Fang, Ding-Ye[1]

机构：[1] Engineering Research Center of Large Scale Reactor Engineering and Technology, Ministry of Education, State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China; [2] State Key Laboratory of Coal Liquefaction and Coal Chemical Technology, Shanghai, 201203, China

年份：2010

卷号：37

起止页码：1019

外文期刊名：World Academy of Science, Engineering and Technology

收录：EI(收录号：20130115858217)

语种：英文

外文关键词：Fluidized bed process - Methanol - Storms - Ethylene - Porosity - Chemical reactors - Fluid catalytic cracking - Gases

摘要：Methanol-to-olefins (MTO) coupled with transformation of coal or natural gas to methanol gives an interesting and promising way to produce ethylene and propylene. To investigate solid concentration in gas-solid fluidized bed for methanol-to-olefins process catalyzed by SAPO-34, a cold model experiment system is established in this paper. The system comprises a gas distributor in a 300mm internal diameter and 5000mm height acrylic column, the fiber optic probe system and series of cyclones. The experiments are carried out at ambient conditions and under different superficial gas velocity ranging from 0.3930m/s to 0.7860m/s and different initial bed height ranging from 600mm to 1200mm. The effects of radial distance, axial distance, superficial gas velocity, initial bed height on solid concentration in the bed are discussed. The effects of distributor shape and porosity on solid concentration are also discussed. The time-averaged solid concentration profiles under different conditions are obtained.