Thermal decomposition and gasification of biomass pyrolysis gases using a hot bed of waste derived pyrolysis char.
Thermal decomposition and gasification of biomass pyrolysis gases using a hot bed of waste derived pyrolysis char.
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DOI：
10.1016/j.biortech.2015.12.016
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发表时间：
2016-03
影响因子：
11.4
通讯作者：
Amal S. Al-Rahbi;J. Onwudili;Paul T. Williams
中科院分区：
文献类型：
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作者：
Amal S. Al-Rahbi;J. Onwudili;Paul T. Williams
研究了不同废弃物热解产生的焦作为生物质两段热解气化过程中生物质热解气催化裂解的催化剂。这些炭是由废轮胎、废弃衍生燃料和枣核形式的生物质热解产生的。结果表明，与非炭催化实验相比，使用所有炭材料的烃焦油产率显着降低。例如，在800 °C的裂解温度下，与没有焦炭的情况相比，轮胎焦炭的总产物烃焦油产率降低了70%，RDF焦炭降低了50%，生物质枣核焦炭降低了9%。天然气总产量随之增加。焦油组成分析表明，在较高的煤焦温度下，产物焦油中酚类化合物的含量降低，多环芳烃的含量增加。
Chars produced from the pyrolysis of different waste materials have been investigated in terms of their use as a catalyst for the catalytic cracking of biomass pyrolysis gases during the two-stage pyrolysis-gasification of biomass. The chars were produced from the pyrolysis of waste tyres, refused derived fuel and biomass in the form of date stones. The results showed that the hydrocarbon tar yields decreased significantly with all the char materials used in comparison to the non-char catalytic experiments. For example, at a cracking temperature of 800 °C, the total product hydrocarbon tar yield decreased by 70% with tyre char, 50% with RDF char and 9% with biomass date stones char compared to that without char. There was a consequent increase in total gas yield. Analysis of the tar composition showed that the content of phenolic compounds decreased and polycyclic aromatic hydrocarbons increased in the product tar at higher char temperatures.