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基于流化床热解的中药渣两段气化基础研究
Authors
任明威
刘殊远
汪印
许光文
Publication date
1 January 2013
Publisher
Abstract
以中药渣为原料,研究了流化床热解和固定床半焦催化/重整焦油及半焦气化的特性,特别是对固定床重整前后焦油中组分的变化进行了分析。结果表明,随着热解气体在固定床半焦中停留时间从0S延长到0.95S,焦油中-OH、C.H、C—O、C=O和C=C官能团的含量显著减少,芳香类物质含量明显增加;向固定床中加入水蒸气后,焦油中芳香类、C—O和羟基.OH官能团的含量增加;而加入氧气后,焦油中羟基-OH、C—H、羰基C=O、C=C和C-O官能团物质含量变化不大,但芳烃类物质明显增多。虽然向固定床中加入水蒸气或氧气均能降低焦油含量,但水蒸气的作用稍弱,两者联合对焦油脱除和半焦气化效果更好,生成的燃气中基本不含焦油
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Last time updated on 05/12/2019