废弃活性炭化学链气化制富氢合成气

发布时间：2018-03-12 16:20

本文选题：废弃活性炭　切入点：化学链气化　出处：《化工学报》2017年09期 　论文类型：期刊论文

【摘要】：以废弃活性炭为原料,以Fe4ATP6复合载氧体为载氧体,在间歇高温流化床中考察了废弃活性炭化学链气化制富氢合成气反应的较优条件及复合载氧体的循环反应特性。结果表明,Fe4ATP6复合载氧体具有提供晶格氧及催化气化的双重作用,显著提高了碳转化率,促进了废弃活性炭气化过程,反应活性良好。废弃活性炭化学链气化制富氢合成气的优化反应条件:900℃、水蒸气流量为0.25 g·min~(-1)、OC/C比为1。在上述条件下,碳转化率达92.15%,合成气产量达1.20 L·g~(-1),其中H2产量为1.09 L·g~(-1),平均浓度为55.30%。10次循环实验表明Fe4ATP6复合载氧体的反应活性略有降低,通过SEM、XRD分析载氧体的表面形貌、物质组成发现,载氧体反应后结构变化较大,粒径减小,生成了无反应活性的硅酸铁。
[Abstract]:Waste activated carbon was used as raw material and Fe4ATP6 compound oxygen carrier as oxygen carrier. The optimum conditions for the production of hydrogen rich syngas from waste activated carbon by chemical chain gasification were investigated in a batch high temperature fluidized bed. The results showed that the complex oxygen carrier Fe _ 4ATP _ 6 had the dual functions of providing lattice oxygen and catalytic gasification. The conversion of carbon was significantly increased, the gasification process of waste activated carbon was promoted, and the reaction activity was good. The optimum reaction conditions of gasification of waste activated carbon chemical chain to produce hydrogen rich syngas were as follows: 1. The optimum reaction conditions were: 1. The water vapor flow rate was 0. 25 g 路min ~ (-1) ~ (-1) C ~ (-1). The carbon conversion rate was 92.15, the syngas production was 1.20 L 路g ~ (-1) ~ (-1), the H _ 2 production was 1.09 L 路g ~ (-1) ~ (-1), the average concentration was 55.30.10 cycles experiments showed that the reaction activity of Fe4ATP6 compound oxygen carrier decreased slightly, the surface morphology of oxygen carrier was analyzed by Fe4ATP6, and the composition of oxygen carrier was found. After the reaction of oxygen carrier, the structure changed greatly, the particle size decreased, and the ferric silicate with no reaction activity was formed.
【作者单位】：青岛科技大学化工学院清洁化工过程山东省高校重点实验室;
【基金】：山东省重点研发计划项目(2016GSF117005) 山东省自然科学基金重点项目(ZR2015QZ02);山东省自然科学基金项目(ZR2015BL028) 国家自然科学基金项目(21276129)~~
【分类号】：TE665.3

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