文献类型：期刊文献

英文题名：High-temperature HCl removal with sorbents in a fixed-bed reactor

作者：Dou, Binlin[1]; Gao, Jinsheng[2]; Baek, Seung Wook[1]; Sha, Xingzhong[2]

机构：[1]Korea Adv Inst Sci & Technol, Div Aerosp Engn, Dept Mech Engn, Taejon 305701, South Korea;[2]E China Univ Sci & Technol, Dept Energy Chem Engn, Shanghai 200237, Peoples R China

年份：2003

卷号：17

期号：4

起止页码：874

外文期刊名：ENERGY & FUELS

收录：;EI(收录号：2003337596576);WOS:【SCI-EXPANDED(收录号:WOS:000184281400013)】；

语种：英文

外文关键词：Chemical reactors - High temperature effects - Hydrochloric acid - Mass transfer - Reaction kinetics

摘要：The HCl removal with sorbents was studied in a fixed-bed reactor at 550 degreesC. The distribution of chlorine in the fixed bed shows that the upstream end of the fixed bed was nearly saturated with the chlorine whereas the downstream end contained less than 2 wt %, and the mass-transfer zone in the bed is about 6 cm. The reaction kinetics of two sorbents with HCl indicates that there are critical times at which reaction rate controlling steps begin to change. In each of the rate-controlling steps the experimental results and model predictions are in good agreement. The results also imply that, as the reaction proceeds, pore diffusion inside the particle becomes more and more difficult, thus lowering the overall reaction rate.