Catalytic Reforming of Volatiles from Biomass Pyrolysis for Hydrogen-Rich Gas Production over Limonite Ore
Catalytic Reforming of Volatiles from Biomass Pyrolysis for Hydrogen-Rich Gas Production over Limonite Ore
复制标题
生物质热解挥发物催化重整褐铁矿富氢气体生产
DOI：
10.1021/acs.energyfuels.7b00005
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发表时间：
2017-03
期刊：
影响因子：
5.3
通讯作者：
Wei Xian-Yong
中科院分区：
文献类型：
--
作者：
Zhao Xiao-Yan;Ren Jie;Cao Jing-Pei;Wei Fu;Zhu Chen;Fan Xing;Zhao Yun-Peng;Wei Xian-Yong
研究了天然褐铁矿催化裂解生物质热解挥发物的可行性，考察了催化剂处理方式、温度、空速、气氛等因素对碳转化率和气体产率的影响。褐铁矿石对焦油状物料的裂解具有一定的催化活性，经H2还原后活性显著提高。当使用还原褐铁矿时，通过将重整温度从400 °C提高到650 °C，气体产率增加到最大值41.6mmol/g，并且水溶性焦油中的碳产率降低到可以忽略的值（0.7%）。还原褐铁矿的重整活性与商业Ni/Al 2 O 3催化剂相当。水蒸气可以抑制褐铁矿上的积碳，并在700 °C下以74.1 mmol/g的高产率产生富H2气体（H2含量为70.4 vol %）。较低的空速提高了碳转化率和气体产量。该研究揭示了使用褐铁矿作为替代品的可能性。
The feasibility of using natural limonite ore for catalytic cracking of biomass pyrolysis volatiles was investigated to study the effects of the catalyst-treated method, temperature, space velocity, and atmosphere on carbon conversion and gas yields. Limonite ore has a certain catalytic activity in the cracking of tarry material, and the activity could be significantly enhanced after reduction with H2. When reduced limonite was used, the gas yield increased to the maximum value of 41.6 mmol/g and the yield of carbon in water-soluble tar decreased to a negligible value (0.7%) by increasing the reforming temperature from 400 to 650 °C. The reforming activity of reduced limonite is comparable to the commercial Ni/Al2O3 catalyst. Steam can inhibit carbon deposition on limonite and give a H2-rich gas (H2 content of 70.4 vol %) in a high yield of 74.1 mmol/g at 700 °C. A lower space velocity improves carbon conversion and gas production. The study revealed the possibility of using limonite as an alternative and...
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