文献类型：期刊文献

英文题名：HCI removal and chlorine distribution in the mass transfer zone of a fixed-bed reactor at high temperature

作者：Dou, Binlin[1]; Chen, Bingbing[1]; Gao, Jinsheng[2]; Sha, Xingzhong[2]

机构：[1] Department of Environment Engineering, Shanghai University of Electric Power, Pingliang Road 2103, Shanghai 200090, China; [2] Department of Energy Chemical Engineering, ECUST, Meilong Road 130, Shanghai 200237, China

年份：2006

卷号：20

期号：3

起止页码：959

外文期刊名：Energy and Fuels

收录：EI(收录号：2006289985486)

语种：英文

外文关键词：Chemical reactions - Concentration (process) - High temperature effects - Organic compounds - Removal

摘要：The breakthrough curves and mass transfer zone (MTZ) of the fixed-bed are of great importance. That they are influenced by a number of factors makes the prediction of these a difficult problem. In this study, the HCl removal using sorbent self-prepared has been studied in the fixed-bed reactor. The breakthrough curves near 1 mg/m3 were measured in the 2-10 cm depth of the fixed-bed. The results show that solid sorbents with active species in the fixed-bed reactor are capable of reducing the HCl to very low level at 550 °C, and the breakthrough time is proportional to the depth of the fixed-bed. The critical bed depth is dependent on initial concentration, flow velocity, and chemical reaction parameter. The fixed-bed model based on the assumption for the breakthrough pattern to be constant through the bed is very reasonable for HCl removal. There are three distinct zones within the fixed-bed processes including the saturated zone, mass transfer zone (MTZ), and blank zone. The chlorine distribution in the MTZ can be predicted by the combination of the fixed-bed constant pattern and the grain surface reaction model, which fits the experimental data well. ? 2006 American Chemical Society.