燃料化学学报2018，Vol.46Issue(2)：152-160,9.
矿化垃圾衍生燃料热解过程HCl与H2S析出规律
Release of HCl and H2S during pyrolysis of aged refuse derived-fuels
摘要
Abstract
Based on the horizontal tubular reactor-chemical absorption together with TG-FTIR-MS methods,release characteristics of corrosive gases,viz.,HCl and H2S,during pyrolysis of refuse derived-fuels were investigated.The effects of pyrolysis temperature and pyrolysis type on their release behaviors for the aged (ARDF) and normal (NRDF) categories were compared.Meanwhile,the occurrence properties of corrosive elements (Cl and S) in solid products were also explored.The results indicate that the release of each corrosive gas has similar characteristic temperature range for slow pyrolysis of two categories.The release of HCl occurs at 200-400 and 420-500 ℃,respectively,while the emission of H2S is observed at 230-370 and 380-670 ℃,respectively.In addition,ARDF has a lower emission amounts of both HCl and H2S compared to NRDF under this condition.With regard to fast pyrolysis,the release of corrosive gases show different regularities,which largely depends on pyrolysis temperature.With increasing temperature,the emission of HCl and H2S present a nonlinear and an increasing trends,respectively,reaching peak values at 850 ℃;It is 48.8％ (ARDF) and 29.4％ (NRDF) for HCl,6.8％ (ARDF) and 44.6％ (NRDF) for HzS.Subsequently,due to the distinctive release characteristics of corrosive gases,the occurrence of corrosive elements in solid phase relating to temperature differs in two categories.The retained amounts of Cl and S reach to 59.4％ (450 ℃) and 84.3％(750 ℃) for ARDF,respectively.But for NRDF,that is 36.7％ (850 ℃) and 15.2％ (650 ℃),repetitively.It can be inferred that ARDF has the more stable corrosive elements difficult to be released into gases,which could provide some guidelines on thermal utilization of refuse derived-fuels.关键词
氯化氢/硫化氢/矿化垃圾衍生燃料/常规垃圾衍生燃料/热解Key words
HCl/H2 S/aged refuse derived-fuels/normal refuse derived-fuels/pyrolysis分类
资源环境引用本文复制引用
林均衡,杨文申,阴秀丽,吴创之..矿化垃圾衍生燃料热解过程HCl与H2S析出规律[J].燃料化学学报,2018,46(2):152-160,9.基金项目
The project was supported by the National Key R&D Program of China (2016YFE0203300),the Guangdong Natural Science Foundation (2017B030308002) and the Science and Technology Program of Guangzhou (201707010242).国家重点研发计划(2016YFE0203300),广东省自然科学基金(2017B030308002)和广州市科技计划项目(201707010242)资助 （2016YFE0203300）
