化工学报Issue(9)：3634-3639,6.DOI:10.3969/j.issn.0438-1157.2014.09.044
高炉渣余热回收协同转化生物质制氢
Waste heat recovery of blast furnace slag and utilization for production of hydrogen from biomass transformation
摘要
Abstract
Blast furnace (BF) slag, one of main byproducts in steelmaking industry, is of high sensible heat and contains some metal oxides, which both can be utilized and is very beneficial to catalytic converse of tar and low carbon hydrocarbons for production of hydrogen-rich gas. Based on this idea, to realize heat recovery of BF slag and utilization for biomass catalytic gasification to generate hydrogen-rich gas, a heat recovery and catalytic conversion system was proposed in this paper. The liquid-solid transition state particles are firstly made by centrifugal granulation from liquid BF slag and then taken them as heat carrier for biomass gasification in a moving-bed reactor, and due to catalysis of multi-metal oxide the selectivity of production hydrogen is improved. Ultimately, the low-grade waste heat of liquid BF slag is translated into the high grade hydrogen energy. To examine main factors influencing gas composition and product distribution, gasification experiments are conducted. The results show that BF slag shows a good catalytic activity for tar cracking and methane reforming. With increase of BF temperature and decreases of particle size the tar content in gasification product decreases and the quality of hydrogen-rich gas improves. At the optimum conditions:BF slag particle size below 2 mm as heat carrier and catalyst, the gas yield can reached 1.65 m3·kg-1, hydrogen content 53.22%and tar content only 2.52%.关键词
生物质/气化/催化/高炉渣/制氢Key words
biomass/gasification/blast catalysis/furnace slag/hydrogen production分类
矿业与冶金引用本文复制引用
童力,胡松涛,罗思义..高炉渣余热回收协同转化生物质制氢[J].化工学报,2014,(9):3634-3639,6.基金项目
青岛市科技计划项目（13-1-4-175-jch，KJZD-12-55-jch）。@@@@supported by Qingdao Science and Technology Plan Projects (13-1-4-175-jch, KJZD-12-55-jch) （13-1-4-175-jch, KJZD-12-55-jch）
