A circulating fluidized bed gasification pilot plant was built to study the effect of air equivalence ratio (ER) and water content of corn straw on gasification characteristics under conditions of using normal temperature air and preheated air at 250oC as gasifying agent respectively. The results showed that the gasification temperature and CO2 content in the fluidized bed gradually increased with the increase of ER, while the calorific value and tar content both decreased. The gasification efficiency increased first and then decreased. The average reaction temperature in the gasification furnace and CO content decreased with the increase of raw material moisture content, while the content of H2, CO2 and tar in gas increased. The content of CH4 and CnHm increased first and then decreased. The calorific value and gasification efficiency under preheated air were higher than that under normal temperature air. Using preheated air as gasifying agent and increasing the agent temperature could significantly accelerate the gasification reaction and improve the gasification efficiency.
YU Jie
,
WANG Cheng-quan
,
YU Sheng-tao
,
DONG Yu-ping
,
CHANG Jia-fu
,
DONG Lei
. Experimental Study on Gasification of Corn Straw in Circulating Fluidized Bed[J]. Advances in New and Renewable Energy, 2018
, 6(1)
: 14
-20
.
DOI: 10.3969/j.issn.2095-560X.2018.01.003
[1] 程序. 生物质能与节能减排及低碳经济[J]. 中国生态农业学报, 2009, 17(2): 375-378. DOI: 10.3724/SP.J. 1011.2009.00375.
[2] 王雪茜, 陈正华, 孙军. 玉米秸秆能源化利用途径与方法[J]. 中国资源综合利用, 2014, 32(10): 35-38. DOI: 10.3969/j.issn.1008-9500.2014.10.016.
[3] 石祖梁, 刘璐璐, 王飞, 等. 我国农作物秸秆综合利用发展模式及政策建议[J]. 中国农业科技导报, 2016, 18(6): 16-22. DOI: 10.13304/j.nykjdb.2016.308.
[4] 李晓. 典型生物质颗粒燃料气化燃烧的试验研究[D]. 济南: 山东建筑大学, 2012.
[5] GAI C, DONG Y P. Experimental study on non-woody biomass gasification in a downdraft gasifier[J]. International journal of hydrogen energy, 2012, 37(6): 4935-4944. DOI: 10.1016/j.ijhydene.2011.12.031.
[6] YIN R Z, LIU R H, WU J K, et al. Influence of particle size on performance of a pilot-scale fixed-bed gasification system[J]. Bioresource technology, 2012, 119: 15-21. DOI: 10.1016/j.biortech.2012.05.085.
[7] GUO F Q, DONG Y P, DONG LEI, et al. Effect of design and operating parameters on the gasification process of biomass in a downdraft fixed bed: an experimental study[J]. International journal of hydrogen energy, 2014, 39(11): 5625-5633. DOI: 10.1016/j.ijhydene.2014.01.130.
[8] 张文斌, 张龙全. 秸秆气化技术研究现状与对策分析[J]. 中国农机化, 2009(6): 90-93. DOI: 10.3969/j.issn. 1006-7205.2009.06.25.
[9] 谢军, 吴创之, 陈平, 等. 中型流化床中的生物质气化实验研究[J]. 太阳能学报, 2007, 28(1): 86-90. DOI: 10.3321/j.issn:0254-0096.2007.01.017.
[10] 范鹏飞, 李景东, 刘艳涛, 等. 感冒清热颗粒中药渣中试规模循环流化床气化实验[J]. 化工进展, 2014, 33(8): 1979-1985, 1991. DOI: 10.3969/j.issn.1000-6613. 2014.08.007.
[11] GUO F Q, DONG Y P, DONG L, et al. An innovative example of herb residues recycling by gasification in a fluidized bed[J]. Waste management, 2013, 33(4): 825-832. DOI:10.1016/j.wasman.2012.12.009.
[12] 耿峰, 齐天, 王留民, 等. 玉米秸秆颗粒燃料热解气化试验研究[J]. 河南科学, 2014, 32(6): 1082-1086. DOI: 10.13537/j.issn.1004-3918.2014.06.034.
[13] 诸林, 蒋鹏, 范峻铭, 等. 串行流化床生物质气化动力学模拟[J]. 天然气工业, 2015, 35(2): 114-118. DOI: 10.3787/j.issn.1000-0976.2015.02.019.
[14] 廖洲. 农作物秸秆热解气化研究[D]. 绵阳: 西南科技大学, 2014.
[15] 曾曦, 敖先权, 曹阳, 等. 玉米秸秆与煤流化床的共气化特性[J]. 过程工程学报, 2017, 17(3): 551-557. DOI: 10.12034/j.issn.1009-606X.216309.
[16] 蒲舸, 刘彦国. 玉米秸秆与贫煤固定床内共气化的实验研究[J]. 煤炭转化, 2014, 37(1): 51-54. DOI: 10.3969/ j.issn.1004-4248.2014.01.012.
[17] 张松寿, 童正明, 周文铸. 工程燃烧学[M]. 北京: 中国计量出版社, 2008.
[18] 常加富, 董玉平, 刘庆磊, 等. 文丘里洗涤器净化生物质燃气流场数值模拟及试验研究[J]. 农业工程学报, 2012, 28(21): 186-192. DOI: 10.3969/j.issn.1002-6819. 2012.21.026.
[19] 刘广青, 董仁杰, 李秀全. 生物质能源转化技术[M]. 北京: 化学工业出版社, 2009.
[20] 张彤辉, 张兆玲, 李景东, 等. 中药渣循环流化床热解气化试验[J]. 可再生能源, 2014, 32(3): 335-340. DOI: 10.3969/j.issn.1671-5292.2014.03.017.
[21] 董玉平, 张彤辉, 常加富, 等. 中药渣双回路循环流化床气化试验[J]. 天然气工业, 2013, 33(10): 127-132. DOI: 10.3787/j.issn.1000-0976.2013.10.022.
