褐煤催化加氢气化实验研究

战书鹏; 王兴军; 洪冰清; 于广锁; 王辅臣

褐煤催化加氢气化实验研究

华东理工大学煤气化教育部重点实验室, 上海 200237

基金项目: 国家重点基础研究发展规划(973计划, 2010CB227000);中央高校基本科研业务费专项资金。

详细信息

作者简介:
战书鹏(1985- ), 男, 山东招远人, 硕士研究生, 主要从事煤催化气化方面的研究, E-mail:zsp208@163.com。

通讯作者:
王兴军、于广锁, E-mail:gsyu@ecust.edu.cn, wxj@ecust.edu.cn。

中图分类号: TQ54
计量
- 文章访问数: 1442
- HTML全文浏览量: 22
- PDF下载量: 953
- 被引次数: 0
出版历程
- 收稿日期: 2011-02-03
- 修回日期: 2011-05-17
- 刊出日期: 2012-01-31

Experimental study on catalytic hydrogasification of lignite

Key Laboratory of Coal Gasification of Ministry of Education, East China University of Science and Technology, Shanghai 200237, China

摘要

摘要: 在加压固定床反应器中研究了碱金属K对褐煤加氢气化的催化作用,考察了温度、压力和催化剂添加量对褐煤加氢气化反应性能的影响。结果表明,碱金属K对褐煤加氢气化具有良好的催化效果,气化反应的碳转化率约为95%,产品气中甲烷的质量分数可达89%;升高温度、提高压力和增加催化剂添加量均能明显提高气化反应性能,催化剂的饱和添加量约为15%。利用扫描电子显微镜(SEM)和气体吸附/脱附分析,对不同催化剂添加量煤样的表面形态和孔结构进行分析,发现比表面积和孔容积随K添加量的增加先减少后增大。
- 碱金属 /
- 固定床 /
- 催化气化 /
- 加氢气化
Abstract: Effect of alkali metal K on the hydrogasification of lignite was studied in a pressurized fixed-bed reactor, and the effects of temperature, pressure and catalyst loading on the reactivity of hydrogasification of lignite coal were examined. The experimental results show that the alkali metal K has a superior catalysis on the hydrogasification of lignite, and the carbon conversion of hydrogasification and the methane content in gaseous products can be up to 95% and 89%, respectively. The gasification reactivity can be enhanced obviously by increasing temperature, pressure and catalyst loading, and the catalyst loading saturation level is about 15%. The surface morphology and pore structure of coal samples with different catalyst loadings have been analyzed using scanning electron microscope (SEM) and gas adsorption/desorption analysis, which indicates that the specific surface areas and total pore volume decrease initially, and then increase with the increasing of catalyst loading.
- alkali metal /
- fixed-bed reactor /
- catalytic gasification /
- hydrogasification

HTML全文

参考文献(15)

XU W-C, MATSUOKA K, AKIHO H, KUMAGAI M, TOMITA A. High pressure hydropyrolysis of coals by using a free-fall reactor[J]. Fuel, 2003, 82(6):677-685.

ZHANG A, KAIHO M, YASUDA H, ZABAT M, NAKANO K, YAMADA O. Fundamental studies on hydrogasification of Taiheiyo coal[J]. Energy, 2005, 30(11/12):2243-2250.

MUHLEN H J, van HEEK K H, JUNTGEN H. Infiuence of pretreatment temperature and pressure on the char reactivity during hydrogasifiation[J]. Fuel, 1986, 65(4):591-593.

SHA X-Z, CHEN Y-G, CAO J-Q, YANG Y-M, REN D-Q. Effects of operating pressure on coal gasification[J]. Fuel, 1990, 69(5):656-659.

LI S, SUN R. Kinetic studies of a lignite char pressurized gasification with CO₂,H₂ and steam[J]. Fuel, 1994, 73(3):413-416.

MOILANEN A, MUHLEN H J. Characterization of gasification reactivity of peat char in pressurized conditions:Effect of product gas inhibition and inorganic material[J]. Fuel, 1996, 75(11):1279-1285.

MATSUMOTO S. Catalyzed hydrogasification of Yallourn char in the presence of supported hydrogenation nickel catalyst[J]. Energy Fuels, 1991, 5(1):60-63.

SUZUKI T, IWASAKI J, TANKA K, OKAZAKI N, FUNAKI M, YAMADA T. Influence of calcium on the catalytic behavior of nickel in low temperature hydrogasification of wood char[J]. Fuel, 1998, 77(7):763-767.

OHTSUKA Y, TAMAI Y, TOMITA A. Iron-catalyzed gasification of brown coal at low temperatures[J]. Energy Fuels, 1987, 1(1):32-36.

HIGASHIYAMAA K, TOMITAA A, TAMAIA Y. Hydrogasification of bituminous and brown coals at 1273 K:Action of a nickel catalyst[J]. Fuel, 1985, 64(11):1525-1530.

KOKOROTSIKOSA P S, STAVROPOULOSA G G, SAKE AROPOULOSA G P. Effect of catalyst impregnation conditions on Greek lignite hydrogasification[J]. Fuel, 1986, 65(10):1462-1465.

李保庆. 煤加氢热解研究:I宁夏灵武煤加氢热解的研究[J]. 燃料化学学报, 1995, 23(1):57-61. (LI Bao-qing. Hydropyrolysis of Chinese coals:I Hydropyrolysis of Lingwu bituminous coal[J]. Journal of Fuel Chemistry and Technology, 1995, 23(1):57-61.)

王娜, 李文, 李保庆. 煤多段加氢热解过程的研究(I)反应条件对产物分布的影响[J]. 化工学报, 2001, 52(5):420-423. (WANG Na, LI Wen, LI Bao-qing. Multi-stage hydropyrolysis of coal(I) Effect of operating conditions on product distributions[J]. Journal of Chemical Industry and Engineering(China), 2001, 52(5):420-423.)

马智华, 王欣荣, 朱子彬, 唐黎华, 倪燕慧, 张成芳. 烟煤快速加氢热解的研究:Ⅱ 温度和压力影响的考察[J]. 燃料化学学报, 1996, 24(5):416-420. (MA Zhi-hua, WANG Xin-rong, ZHU Zi-bin, TANG Li-hua, NI Yan-hui, ZHANG Cheng-fang. Study on flash hydropyrolysis of bituminous coal:Ⅱ Effect of temperature and pressure[J]. Journal of Fuel Chemistry and Technology, 1996, 24(5):416-420.)

洪诗捷, 张济宇, 黄文沂, 林驹, 林诚. 工业废液碱对福建无烟煤水蒸气催化气化的实验室研究[J]. 燃料化学学报, 2002, 30(6):481-486. (HONG Shi-jie, ZHANG Ji-yu, HUANG Wen-yi, LIN Ju, LIN Cheng. Experimental study on catalytic gasificatn of Fujian anthracite with steam using industrial waste liquor alkalis[J]. Journal of Fuel Chemistry and Technology, 2002, 30(6):481-486.)

施引文献

资源附件(0)

访问统计