稻秸成型燃料流化床气化炉内CaO脱氯实验研究

doi:10.16085/j.issn.1000-6613.2017.03.017

化工进展 ›› 2017, Vol. 36 ›› Issue (03): 893-899.DOI: 10.16085/j.issn.1000-6613.2017.03.017

稻秸成型燃料流化床气化炉内CaO脱氯实验研究

王婷, 金保昇, 裴海鹏, 钟振宇

东南大学能源热转换及其过程测控教育部重点实验室, 能源与环境学院, 江苏南京 210096

收稿日期:2016-07-01 修回日期:2016-09-04 出版日期:2017-03-05 发布日期:2017-03-05
通讯作者: 金保昇,教授,主要从事煤和生物质发电技术及其相关的气固流动和热质传递。
作者简介:王婷(1990-),女,硕士研究生,主要从事生物质气化炉内CaO脱氯研究。E-mail:wangting_seu@139.com。
基金资助:
国家国际科技合作专项项目（2014DFE70150）。

Experimental study on the CaO dechlorination in the rice straw briquette fluidized-bed gasifier

WANG Ting, JIN Baosheng, PEI Haipeng, ZHONG Zhenyu

Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, Jiangsu, China

Received:2016-07-01 Revised:2016-09-04 Online:2017-03-05 Published:2017-03-05

摘要/Abstract

摘要：

在鼓泡流化床装置上进行了稻草秸秆成型燃料气化过程中氯的释放规律和CaO脱氯特性实验研究。实验首先考察了反应温度和当量比对稻草秸秆成型燃料气化过程氯析出的影响。从实验结果看出，气化过程中氯析出率随温度和当量比的增加而增大。再加入CaO进行脱氯实验，研究了Ca/Cl摩尔比、反应温度、当量比和CaO粒径等参数对脱氯效率的影响，实验结果表明，脱氯效率随Ca/Cl摩尔比的增大而增大，但当Ca/Cl摩尔比增大到4.73以后，脱氯效率几乎不再变化；在873～1073K范围内，脱氯效率随着反应温度的升高呈先增大后减小的趋势，在923K时脱氯效率达到最大；脱氯效率随当量比的增加而增加，但当量比为0.16和0.18时的脱氯效率基本相同；CaO粒径在0.18～0.27mm范围内，CaO粒径减小脱氯效率仅有小幅增加。

关键词: 脱氯, 氧化钙, 稻秸成型燃料, 气化, 流化床

Abstract:

The characteristics of chlorine emission and CaO dechlorination during rice straw briquette gasification were investigated in a bubbling fluidized bed. Firstly,the effects of temperature and the fuel-air equivalence ratio(ER) on chlorine emission during biomass gasification were studied. Experimental results showed that the chlorine release rate increased with increasing temperature and ER. Further experiments were performed to evaluate the effects of Ca/Cl molar ratio,temperature, ER and CaO particle size on dechlorination efficiency. The dechlorination efficiency of CaO increased with the increasing of Ca/Cl molar ratio,and the efficiency stabilized at Ca/Cl molar ratio of 4.73. CaO dechlorination efficiency increased at first and then decreased with the increasing of temperature,and it reached the peak value at 923K. CaO dechlorination efficiency gradually increased with the increasing of ER,but the change was not significant when ER is more than 0.16. A slight rising of CaO dechlorination efficiency emerged when the CaO particle size decreased.

Key words: dechlorination, calcium oxide, rice straw briquette, gasification, fluidized-bed

中图分类号:

王婷, 金保昇, 裴海鹏, 钟振宇. 稻秸成型燃料流化床气化炉内CaO脱氯实验研究[J]. 化工进展, 2017, 36(03): 893-899.

WANG Ting, JIN Baosheng, PEI Haipeng, ZHONG Zhenyu. Experimental study on the CaO dechlorination in the rice straw briquette fluidized-bed gasifier[J]. Chemical Industry and Engineering Progress, 2017, 36(03): 893-899.

参考文献

[1] GAI C,DONG Y.Experimental study on non-woody biomass gasification in a downdraft gasifier[J]. International Journal of Hydrogen Energy,2012,37(6):4935-4944.
[2] SHEMWELL B,LEVENDIS Y A,SIMONS G A.Laboratory study on the high-temperature capture of HCl gas by dry-injection of calcium-based sorbents[J]. Chemosphere, 2001, 42(5):785-796.
[3] 蒋旭光,李香排,池涌,等.木屑在固定床焚烧中HCl的控制研究[J].热能动力工程,2004,19(5):487-490. JIANG X G,LI X P,CHI Y,et al.Research on the control of HCl during the incineration of sawdust in a fixed bed[J].Journal of Engineering for Thermal Energy and Power,2004,19(5):487-490.
[4] POSKROBKO S,KRÓL D,?ACH J.Hydrogen chloride bonding with calcium hydroxide in combustion and two-stage combustion of fuels from waste[J].Energy & Fuels,2012,26(2):842-853.
[5] WEINELL C E, JENSEN P I, DAM-JOHANSEN K, et al.Hydrogen chloride reaction with lime and limestone:kinetics and sorption capacity[J]. Industrial & Engineering Chemistry Research,1992,31(1):164-171.
[6] 郭献军.生物质燃烧氯的析出与控制研究[D].武汉:华中科技大学,2009. GUO X J.Study on release and control of chlorine during biomass combustion[D].Wuhan:Huazhong University of Science and Technology,2009.
[7] JENSEN A, DAM-JOHANSEN K, WÓJTOWICZ M A, et al.TG-FTIR study of the influence of potassium chloride on wheat straw pyrolysis[J].Energy & Fuels,1998,12(5):929-938.
[8] 余春江,骆仲泱, 张文楠,等.碱金属及相关无机元素在生物质热解中的转化析出[J].燃料化学学报,2000,28(5):420-425. YU C J,LUO Z Y,ZHANG W N,et al.Inorganic material emission during biomass pyrolysis[J].Journal of Fuel Chemistry and Technology,2000,28(5):420-425.
[9] WEI X L,SCHNELL U,HEIN K.Behaviour of gaseous chlorine and alkali metals during biomass thermal utilization[J].Fuel, 2005,84(7/8):841-848.
[10] KNUDSEN J N, JENSEN P A, DAM-JONHANSEN K.Transformation and release to the gas phase of Cl,K,and S during combustion of annual biomass[J].Energy & Fuels,2004, 18(5):1385-1399.
[11] SCHRÖTER H J.Corrosion resistant materials for coal conversion systems[J].Forschung im Ingenieurwesen,1984,50(2):51.
[12] 吴鹏.生物质热转化过程中氯的迁徙规律研究[D].杭州:浙江大学,2013. WU P.Study of the migration patterns of chlorine during the thermal conversion of biomass[D]. Hangzhou:Zhejiang University,2013.
[13] HATHAWAY B J,HONDA M,KITTELSON D B,et al.Steam gasification of plant biomass using molten carbonate salts[J].Energy,2013,49:211-217.
[14] BAXTER L L,GALE T,SINQUEFIELD S,et al.Influence of ash deposit chemistry and structure on physical and transport properties[J].Fuel Processing Technology,1998,56(1):81-88.
[15] BIE R,LI S,YANG L.Reaction mechanism of CaO with HCl in incineration of wastewater in fluidized bed[J]. Chemical Engineering Science,2005,60(3):609-616.
[16] 李诗媛,别如山,吕响荣.流化床中钙基吸收剂与HCl的反应机理[J].化工学报,2005,56(2):318-323. LI S Y,BIE R S,LU X R.Reaction kinetics of Ca-based sorbents with HCl in fluidized bed[J].CIESC Journal,2005,56(2):318-323.
[17] 蒋旭光,李琦,李香排,等.CaCl₂的高温稳定性试验研究[J].燃料化学学报,2003,31(6):553-557. JIANG X G,LI Q,LI X P,et al.Study on stability of CaCl₂ at high temperature[J].Journal of Fuel Chemistry and Technology, 2003,31(6):553-557.
[18] 牛淼淼,黄亚继,金保昇,等.鼓泡流化床垃圾衍生燃料富氧气化[J].化工学报,2014,65(12):4971-4977. NIU M M,HUANG Y J,JIN B S,et al.Enriched-air gasification of refuse derived fuel in bubbling fluidized bed[J].CIESC Journal, 2014,65(12):4971-4977.
[19] DUO W,KIRKBY N F,SEVILLE J P K,et al.Alteration with reaction progress of the rate limiting step for solid-gas reactions of Ca-compounds with HCl[J]. Chemical Engineering Science, 1995,50(13):2017-2027.
[20] 王恺,钟文琪,曹俊,等.CaO中高温脱除HCl的特性试验研究[J].东南大学学报(自然科学版),2014,44(3):591-597. WANG K,ZHONG W Q,CAO J,et al.Experimental study on HCl removal characteristics over CaO at moderate and high temperature[J].Journal of Southeast University(Natural Science Edition),2014,44(3):591-597.
[21] 李香排,蒋旭光,池涌,等.城市生活垃圾焚烧时HCl排放及脱除研究进展[J].电站系统工程,2003,19(5):40-43. LI X P.JIANG X G,CHI Y,et al.Review on the emission and dechlorination of HCl in combustion of MSW[J].Power System Engineering,2003,19(5):40-43.
[22] SOTIRCHOS S V,ZARKANITIS S. Inaccessible pore volume formation during sulfation of calcined limestones[J]. AIChE Journal, 1992,38(10):1536-1550.

稻秸成型燃料流化床气化炉内CaO脱氯实验研究

Experimental study on the CaO dechlorination in the rice straw briquette fluidized-bed gasifier

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