Influence of Inherent Potassium in Corncob on Hydrogen Production with Supercritical Water Gasification

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Influence of Inherent Potassium in Corncob on Hydrogen Production with Supercritical Water Gasification

更新时间：2025-07-09

- Influence of Inherent Potassium in Corncob on Hydrogen Production with Supercritical Water Gasification
- Vol. 45, Issue 7, Pages: 15-21(2011)
- 作者机构：
  
  东南大学能源与环境学院,南京,210096
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK6
- Online First：10 July 2011，
  
  Published：2011
- 稿件说明：
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Influence of Inherent Potassium in Corncob on Hydrogen Production with Supercritical Water Gasification[J]. 2011, 45(7): 15-21.
DOI：

Influence of Inherent Potassium in Corncob on Hydrogen Production with Supercritical Water Gasification[J]. 2011, 45(7): 15-21. DOI：

摘要

为研究玉米芯中内在钾元素对其超临界水气化(SCWG)过程的影响

采用水洗方式对钾元素进行了脱除.对水洗样中的无机成分和有机成分进行了分析

结果表明这一方法能有效脱除玉米芯中的钾

并能保持玉米芯有机成分的稳定.利用压力釜反应器对玉米芯原样和水洗样进行了不同反应温度、不同反应压力、不同反应停留时间下的SCWG实验.实验结果表明

玉米芯中钾元素的存在促进了SCWG反应产物中氢气的生成.提高反应压力或延长反应时间

均强化K对H

生成的促进作用.内在钾元素对气体产量和气化率的影响与温度有关

低温时促进气化

而高温时抑制气化.此外

对水洗样分别回添KCl和KOH进行了SCWG反应实验

结果表明回添的KCl和KOH均阻碍氢气的产生和玉米芯的气化.因此

玉米芯内在钾元素在SCWG过程中的作用方式与直接添加钾成分时有所区别.

Abstract

Inherent potassium in the corncob was removed by means of water-leaching and theanalysis on the inorganic composition and the organic composition of the water-leached corncob was performed. The results show that almost all potassium in the corncob could be removed and there was little change in the organic composition of the corncob after water-leaching. The experiments on the corncob supercritical water gasification(SCWG)with different reaction temperatures

reaction pressures and residence time were conducted in a high-pressure autoclave. The results indicate that the inherent potassium in the corncob will facilitate hydrogen generation. The greater reaction pressure and the reaction time can both promote the effect of the inherent potassium on hydrogen production. The influences of inherent K on total gas yield and gasification efficiency were related to the reaction temperature. In addition

the experiments on the water-leached samples with added KCl or KOH show that KCl or KOH hindered hydrogen generation and corncob gasification. It is likely that the effect of the inherent potassium in the corncob on the SCWG was different from that of the added potassium.

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references

CHUNTANAPUM A, MATSUMURA Y. Char formation mechanism in supercritical water gasification process: a study of model compounds [J]. Industrial & Engineering Chemistry Research, 2010, 49(9): 4055-4062.

DEMIRBAS A. Hydrogen production from biomass via supercritical water gasification [J]. Energy Sources: Part A Recovery, Utilization, and Environmental Effects, 2010, 32(14): 1342-1354.

MAY A, SALVADO J, TORRAS C, et al. Catalytic gasification of glycerol in supercritical water [J]. Chemical Engineering Journal, 2010, 160(2): 751-759.

RAVEENDRAN K, GANESH A, KHILAR K C. Influence of mineral matter on biomass pyrolysis characteristics [J]. Fuel, 1995, 74(12): 1812-1822.

曾娜. 生物质中无机成分在超临界水中溶解性研究[D]. 南京: 东南大学, 2008: 4-11.

王贤华, 陈汉平, 王静, 等. 无机矿物质盐对生物质热解特性的影响[J]. 燃料化学学报, 2008, 36(6): 679-683.

WANG Xianhua, CHEN Hanping, WANG Jing, et al. Influences of mineral matters on biomass pyrolysis characteristics [J]. Journal of Fuel Chemistry and Technology, 2008, 36(6): 679-683.

DAS P, GANESH A, WANGIKAR P. Influence of pretreatment for deashing of sugarcane bagasse on pyrolysis products [J]. Biomass Bioenergy, 2004, 27(5): 445-457.

YAN Bo, WEI Chaohai, HU Chengsheng, et al. Hydrogen generation from polyvinyl alcohol-contaminated wastewater by a process of supercritical water gasification [J]. Journal of Environmental Sciences, 2007, 19(12): 1424-1429.

SINAG A, KRUSE A, SCHWARZKOPF V. Key compounds of the hydropyrolysis of glucose in supercritical water in the presence of K2CO3 [J]. Industrial Engineering Chemistry Research, 2003, 42(15): 3516-3521.

KRUSE A, MEIER D, RIMBRECHT P, et al. Gasification of pyrocatechol in supercritical water in the presence of potassium hydroxide [J]. Industrial Engineering Chemistry Research, 2000, 39(12): 4842-4848.

LU Youjun, LI Sha, GUO Liejin, et al. Hydrogen production by biomass gasification in supercritical water over Ni/γAl2O3 and Ni/CeO2-γAl2O3 catalysts [J]. International Journal of Hydrogen Energy, 2010, 35(13): 7161-7168.

关宇, 裴爱霞, 郭烈锦. 纤维素在超临界水中的催化气化制氢研究[J]. 高校化学工程学报, 2007, 21(3): 436-441.

GUAN Yu, PEI Aixia, GUO Liejin. Hydrogen production by catalytic gasification of cellulose in supercritical water [J]. Journal of Chemical Engineering of Chinese Universities, 2007, 21(3): 436-441.

郝小红. 生物质超临界水气化制氢[D]. 西安: 西安交通大学, 2004: 32-33.

刘荣厚, 牛卫生, 张大雷. 生物质热化学转换技术[M]. 北京: 化学工业出版社, 2005: 32-34.

杨海平. 油棕废弃物热解的实验及机理研究[D]. 武汉: 华中科技大学, 2005: 54-56.

LI Shiguang, XU Shaoping, LIU Shuqin, et al. Fast pyrolysis of biomass in free-fall reactor for hydrogen-rich gas [J]. Fuel Processing Technology, 2004, 85(8/9/10): 1201-1211.

BLASI C D, SIGNORELLI G, RUSSO C D, et al. Product distribution from pyrolysis of wood and agricultural residues [J]. Industrial Engineering Chemistry Research, 1999, 38(6): 2216-2224.

肖青, 万金泉. 半纤维素的脱除对木浆纤维结构与性能的影响[J]. 高分子材料科学与工程, 2010, 26(11): 78-82.

XIAO Qing, WAN Jinquan. Effect of hemicelluloses removal on structure and properties of woodpulp fibres [J]. Polymer Materials Science and Engineering, 2010, 26(11): 78-82.

杨昌炎, 姚建中, 吕雪松, 等. 生物质中K+、Ca2+对热解的影响及机理研究[J]. 太阳能学报, 2006, 27(5): 496-502.

YANG Changyan, YAO Jianzhong, LU Xuesong, et al. Influence of K+and Ca2+ on the mechanism of biomass pyrolysis [J]. Acta Energiae Solaris Sinica, 2006, 27(5): 496-502.

任强强, 赵长遂, 梁财, 等. 麦秆热解过程中氮迁移特性的试验研究[J]. 中国电机工程学报, 2008, 28(23): 99-104.

REN Qiangqiang, ZHAO Changsui, LIANG Cai, et al. Experimental research on formation behavior of fuel-nitrogen during wheat straw pyrolysis [J]. Proceedings of the CSEE, 2008, 28(23): 99-104.

郝蓉, 彭少麟, 宋艳暾, 等. 不同温度对黑碳表面官能团的影响[J]. 生态环境学报, 2010, 19(3): 528-531.

HAO Rong, PENG Shaolin, SONG Yantun, et al. Effects of different temperature on surface functional groups of black carbon [J]. Ecology and Environmental Sciences, 2010, 19(3): 528-531.

高振华, 邸明伟. 生物质材料及应用[M]. 北京: 化学工业出版社, 2008: 16-17.

HAO Xiaohong, GUO Liejin, ZHANG Ximin, et al. Hydrogen production from catalytic gasification of cellulose in supercritical water [J]. Chemical Engineering Journal, 2005, 110(1/2/3): 57-65.

KRUSE A, GAWLIK A. Biomass conversion in water at 330-410 ℃ and 30-50 MPa. Identification of key compounds for indicating different chemical reaction pathways [J]. Industrial Engineering Chemistry Research, 2003, 42(2): 267-279.

BUHLER W, DINJUS E, EDERER H J, et al. Ionic reactions and pyrolysis of glycerol as competing reaction pathways in near-and supercritical water [J]. Journal of Supercritical Fluids, 2002, 22(1): 37-53.

YANIK J, EBALE S, KRUSE A, et al. Biomass gasification in supercritical water: II Effect of catalyst [J]. International Journal of Hydrogen Energy, 2008, 33(17): 4520-4526.

裴爱霞, 张锐, 金辉, 等. 超临界水中花生壳气化制氢催化剂的筛选与研究[J]. 西安交通大学学报, 2008, 42(7): 913-918.

PEI Aixia, ZHANG Rui, JIN Hui, et al. Research on catalysts and their catalytic characteristics for hydrogen production by gasification of peanut shell in supercritical water [J]. Journal of Xi'an Jiaotong University, 2008, 42(7): 913-918.

张永春, 张军, 赵亮, 等. 超临界水中甲酸降解过程实验研究[J]. 燃料化学学报, 2010, 38(4): 403-408.

ZHANG Yongchun, ZHANG Jun, ZHAO Liang, et al. Decomposition of formic acid in supercritical water [J]. Journal of Fuel Chemistry and Technology, 2010, 38(4): 403-408.

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