稻草与煤固定床共热解特性的研究

王立; 陈雪莉; 赵英杰; 李帅丹; 王辅臣

稻草与煤固定床共热解特性的研究

华东理工大学煤气化与能源化工教育部重点实验室, 上海 200237

基金项目: 国家重点基础研究发展规划 (973计划, 2011CB 200906); 国家科技支撑计划(2012BAA09B02); 中央高校基本科研业务费专项资金.

详细信息

通讯作者:
陈雪莉, Tel: 021-64250734, Fax: 021-64251312, E-mail: cxl@ecust.edu.cn.

中图分类号: TK6
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- 文章访问数: 1993
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- 被引次数: 0
出版历程
- 收稿日期: 2012-09-15
- 修回日期: 2012-12-06
- 刊出日期: 2013-04-30

Experimental study on co-pyrolysis characteristic of straw and coal blends in a fixed bed reactor

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

摘要

摘要: 选取稻草为生物质原料,将其与两种不同煤阶的煤(内蒙褐煤和神府烟煤)分别以0∶100、20∶80、40∶60、60∶40、80∶20、100∶0的干基质量比均匀混合.借助固定床反应器,研究了稻草与两种煤的共热解特性,探讨了共热解过程中可能存在的协同作用.结果表明,稻草添加有利于共热解气体产物的生成,且对神府煤作用更明显;稻草含量越高,热解气体产量的实验值与加权平均计算值的偏差也越大,说明稻草与煤共热解过程发生了协同作用.而共热解所得焦产量的实验值与加权平均计算值基本一致.热解焦傅里叶红外光谱分析结果表明,稻草添加对热解焦的官能团未造成显著影响.
- 稻草 /
- 煤 /
- 固定床 /
- 共热解 /
- 协同作用
Abstract: Straw was mixed with 2 different coals including Neimeng lignite and Shenfu bituminous coal in different proportions of 0∶100, 20∶80, 40∶60, 60∶40, 80∶20, and 100∶0. The co-pyrolysis experiments of the blends were conducted in a fixed bed reactor. The co-pyrolysis characteristic of straw and coal blends and synergetic effects during co-pyrolysis were studied. The results show that the yield of co-pyrolysis of straw and coal blend based on volatile matters were higher than those of the sum of straw and coal individually. Meanwhile, considerable deviations from the average weighted value of gas yield were detected, especially for straw and Shenfu bituminous coal blend. The more straw was added into blend, the more gas yield produced during co-pyrolysis. However, straw addition did not play significant role in the char yield and organic functional groups characterization.
- coal /
- straw /
- fixed bed reactor /
- rapid co-pyrolysis /
- synergetic effects

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参考文献(18)

HAYKIRI-ACMA H, YAMAN S. Synergy in devolatilization characteristics of lignite and hazelnut shell during co-pyrolysis[J]. Fuel , 2007, 86(3): 373-380.

HAYKIRI-ACMA H, YAMAN S. Interaction between biomass and different rank coals during co-pyrolysis[J]. Renew Energy, 2010, 35(1): 288-292.

ULLOA C A, Gordon A L, García X A. Thermogravimetric study of interactions in the pyrolysis of blends of coal with radiata pine sawdust[J]. Fuel Process Technol, 2009, 90(4): 583-590.

JONES J M, KUBACKI M, KUBICA K, ROSS A B, WILLIAMS A. Devolatilisation characteristics of coal and biomass blends[J]. J Anal Appl Pyrolysis, 2005, 74(1/2): 502-511.

VUTHALURU H B. Thermal behaviour of biomass/coal blends during co-pyrolysis[J]. Fuel Process Technol, 2003, 85(2/3): 141-155.

ZHANG L, XU S-P, ZHAO W, LIU S-Q. Co-pyrolysis of biomass and coal in a free fall reactor[J]. Fuel, 2007, 86(3): 353-359.

COLLOT A G, ZHUO Y, DUG WELL D R, KANDIYOTI R. Co-pyrolysis and co-gasification of coal and biomass in bench-scale fixedbed and fluidised bed reactors[J]. Fuel, 1999, 78(6): 667-679.

YUAN S, DAI Z-H, ZHOU Z-J, CHEN X-L,YU G-S,WANG F-C. Rapid co-pyrolysis of rice straw and a bituminous coal in a high-frequency furnace and gasification of the residual char[J]. Bioresour Technol, 2012, 109: 188-197.

PARK D K, KIM S D, LEE S H, LEE J G. Co-pyrolysis characteristics of sawdust and coal blend in TGA and a fixed bed reactor[J]. Bioresour Technol, 2010, 101(15): 6151-6156.

NOLA G D, JONG W D, SPLIETHOFF H. TG-FTIR characterization of coal and biomass single fuels and blends under slow heating rate conditions: Partitioning of the fuel-bound nitrogen[J]. Fuel Process Technol, 2010, (91): 103-115.

FU P, HU S, SUN L-S,XIANG J, CHEN Q-Q, YANG T, ZHANG J-Y. Release characteristics and formation mechanism of gas products during rice straw and maize stalk pyrolysis[J]. Proceedings of the CSEE, 2009, 29(2): 113-118.

ZHU W-K, SONG W-L, LIN W-G. Catalytic gasification of char from co-pyrolysis of coal and biomass[J]. Fuel Process Technol, 2008, (89): 890-896.

KEOWN D M, HAYASHI J I, Li C Z. Effects of volatile-char interactions on the volatilisation of alkali and alkaline earth metallic species during the pyrolysis of biomass[J]. Fuel, 2008, 87: 1187-1194.

GUO C-T. Coal chemical[M]. Beijing: Chemical Industry Press, 1996.

LOPEZ M C B, BLANCO C G, MARTNE Z-ALONSO A, TASLNJ M D. Composition of gases released during olive stones pyrolysis[J]. J Anal Appl Pyrolysis, 2002, 65(2): 313-322.

WEI L-G, XU S-P, ZHANG L, ZHANG H-G, LIU C-H, ZHU H, LIU S-Q. Characteristics of fast pyrolysis of biomass in a free fall reactor[J]. Fuel Process Technol , 2006, 87(10): 863-871.

JAKAB E, FAIX O, Till F. Thermal decomposetion of milled wood lignins studied by thermogravimetry/mass spectrometry[J]. J Anal Appl Pyrolysis, 1997, (40-41), 171-186.

SHARMA R K, WOOTEN J B, BALIGA V L, HAJALIGOL M R. Characterization of chars from biomass-derived materials: Pectin chars[J]. Fuel, 2001, 80(12): 825-836.

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