煤红外快速热解过程中床层对二次反应的影响

马金凤; 曾玺; 王芳; 康国俊; 武荣成; 许光文

doi:10.11949/0438-1157.20191264

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煤红外快速热解过程中床层对二次反应的影响

能源和环境工程 | 更新时间：2026-07-24

- 煤红外快速热解过程中床层对二次反应的影响
- Effect of coal layer thickness on secondary reaction during its infrared rapid pyrolysis
- 化工学报 2020年71卷第2期页码：736-745
- 作者机构：
  
  1.中国矿业大学化学化工学院，江苏省煤基CO2捕集与地质储存重点实验室，江苏徐州 221116
  2.中国科学院过程工程研究所多相复杂系统国家重点实验室，北京 100190
  3.沈阳化工大学资源化工与材料教育部重点实验室，辽宁沈阳 110142
- 作者简介：
  
  马金凤（1992—），女，硕士研究生，jinfengma11@163.com
  曾玺（1982—），男，博士，副研究员，xzeng@ipe.ac.cn
  康国俊（1979—），男，博士，助理研究员，gjkang@cumt.edu.cn
- 基金信息：
  
  国家自然科学基金项目(21808227)
- DOI：10.11949/0438-1157.20191264
  中图分类号： TQ 530.2
- 收稿：2019-10-24，
  
  修回：2019-12-13，
  
  网络首发：2020-08-14，
  
  纸质出版：2020-02-05
- 稿件说明：
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马金凤, 曾玺, 王芳, 康国俊, 武荣成, 许光文. 煤红外快速热解过程中床层对二次反应的影响[J]. 化工学报, 2020, 71(2): 736-745

MA Jinfeng, ZENG Xi, WANG Fang, KANG Guojun, WU Rongcheng, XU Guangwen. Effect of coal layer thickness on secondary reaction during its infrared rapid pyrolysis[J]. CIESC Journal, 2020, 71(2): 736-745
马金凤, 曾玺, 王芳, 康国俊, 武荣成, 许光文. 煤红外快速热解过程中床层对二次反应的影响[J]. 化工学报, 2020, 71(2): 736-745 DOI： 10.11949/0438-1157.20191264.

MA Jinfeng, ZENG Xi, WANG Fang, KANG Guojun, WU Rongcheng, XU Guangwen. Effect of coal layer thickness on secondary reaction during its infrared rapid pyrolysis[J]. CIESC Journal, 2020, 71(2): 736-745 DOI： 10.11949/0438-1157.20191264.

摘要

针对煤快速热解研究中样品添加量少(mg级)、焦油收集难等问题，本研究利用压片法制备微薄厚度(mm级)的煤层，并采用红外加热装置考察大添加量(g级)、微薄煤层的快速热解特性。对比堆积煤样和不同煤压片厚度(1.5~3 mm)与个数(1~2)的压片煤样热解特性发现，压片煤层热解过程的二次反应受到明显抑制，焦油产率急剧增加，在1000℃时达9.96%，为格金分析的1.5倍，实现油气产量的同步增长。模拟蒸馏分析发现，堆积状态下焦油以沥青质为主，而微薄煤层制焦油含大量轻油、酚油、萘油、洗油和蒽油。GC-MS和FTIR分析表明，随煤层厚度和个数的减少，焦油组分和含量提高，芳香烃类和含氧官能团吸收增加，进一步验证煤快速热解过程中煤层厚度对焦油产率和品质的影响，揭示在二次反应充分抑制下煤高温热解的初级反应特性。

Abstract

Aiming at the problems of small sample addition amount (mg level) and difficult tar collection in the rapid pyrolysis of coal

this study uses the tablet method to prepare coal seams with a thin thickness (mm level) and uses an infrared heating device to investigate the large addition amount (g level)

fast pyrolysis characteristics of thin coal seams. Compared to the stacking method of coals sample

in the experiment of thin coal layer

the effect of coal layer thickness on the secondary reaction was significantly inhibited

and the tar yield increased sharply

reaching 9.96% at 1000°C and 1.5 times of the Gray-King analysis. Furthermore

a synchronous increase in pyrolysis gas and tar was realized. The simulated distillation analysis shows that asphaltene was the main compound in the tar sample produced from the coal pyrolysis in the stacked state

while for the tar from the pyrolysis of tableting coal layer

it contained a large amount of light oil

phenol oil

naphthalene oil

washing oil and anthracene oil. From the GC-MS and FTIR analysis

it can be seen that with the decrease of thickness and number of the tableting layer

the kind of tar compounds and their corresponding contents increased

and the absorption of aromatic hydrocarbons and oxygen-containing functional groups was strengthened. All of these further verified the influence of coal layer on tar yield and quality in coal fast pyrolysis

and also revealed the primary reaction characteristics of high-temperature coal pyrolysis under the full suppression of secondary reaction.

关键词

Keywords

references

谢克昌 , 李忠 . 煤基燃料的制备与应用 [J ] . 化工学报 , 2004 , 55 ( 9 ): 1393 - 1399 .

Xie K C , Li Z . Production and application of coal-based fuel [J ] . Journal of Chemical Industry and Engineering(China) , 2004 , 55 ( 9 ): 1393 - 1399 .

Shi Z W , Jin L J , Zhou Y , et al . Effect of hydrothermal treatment on structure and liquefaction behavior of Baiyinhua coal [J ] . Fuel Processing Technology , 2017 , 167 : 648 - 654 .

齐庆杰 , 刘建忠 , 曹欣玉 , 等 . 煤中氟分布与燃烧排放特性 [J ] . 化工学报 , 2002 , 53 ( 6 ): 572 - 577 .

Qi Q J , Liu J Z , Cao X Y , et al . Fluorine distribution characteristics in coal and behavior of fluorine during coal combustion [J ] . Journal of Chemical Industry and Engineering(China) , 2002 , 53 ( 6 ): 572 - 577 .

翟建荣 , 钟梅 , 马凤云 , 等 . 水蒸气对煤焦油模化物裂解行为及析碳的影响 [J ] . 化工学报 , 2019 , 70 ( 8 ): 2898 - 2908 .

Zhai J R , Zhong M , Ma F Y , et al . Effect of steam atmosphere on cracking behavior and carbon deposition of coal tar model compounds [J ] . CIESC Journal , 2019 , 70 ( 8 ): 2898 - 2908 .

Zhang Z Z , Chang H , Gao T , et al . Catalytic upgrading of coal pyrolysis volatiles over metal-loaded HZSM-5 catalysts in a fluidized bed reactor [J ] . Journal of Analytical and Applied Pyrolysis , 2019 , 139 : 31 - 39 .

范洋 , 李文英 , 谢克昌 . 褐煤热解-气化-制油系统的CO 2 减排策略 [J ] . 化工学报 , 2015 , 66 ( 8 ): 3204 - 3209 .

Fan Y , Li W Y , Xie K C . Strategies of lignite pyrolysis-gasification-oil system for CO 2 emission reduction [J ] . CIESC Journal , 2015 , 66 ( 8 ): 3204 - 3209 .

Li C Z . Importance of volatile-char interactions during the pyrolysis and gasification of low-rank fuels — a review [J ] . Fuel , 2013 , 112 : 609 - 623 .

赵洪宇 , 任善普 , 贾晋炜 , 等 . 褐煤经四氢化萘处理后的结构及热解-气化特性分析 [J ] . 化工学报 , 2015 , 66 ( 10 ): 4193 - 4201 .

Zhao H Y , Ren S P , Jia J W , et al . Analysis of structure and pyrolysis and gasification characteristics of lignite after tetrahydronaphthalene treatment [J ] . CIESC Journal , 2015 , 66 ( 10 ): 4193 - 4201 .

Niu B , Jin L , Li Y , et al . Mechanism of hydrogen transfer and role of solvent during heating-up stage of direct coal liquefaction [J ] . Fuel Processing Technology , 2017 , 160 : 130 - 135 .

刘振宇 . 煤快速热解制油技术问题的化学反应工程根源: 逆向传热与传质 [J ] . 化工学报 , 2016 , 67 ( 1 ): 1 - 5 .

Liu Z Y . Origin of common problems in fast coal pyrolysis technologies for tar: the countercurrent flow of heat and volatiles [J ] . CIESC Journal , 2016 , 67 ( 1 ): 1 - 5 .

Siramard S , Zhan J H , Han Z N , et al . Secondary cracking of volatile and its avoidance in infrared-heating pyrolysis reactor [J ] . Carbon Resources Conversion , 2018 , 1 ( 3 ): 202 - 208 .

Cheng S , Lai D G , Shi Z , et al . Suppressing secondary reactions of coal pyrolysis by reducing pressure and mounting internals in fixed-bed reactor [J ] . Chinese Journal of Chemical Engineering , 2017 , 25 ( 4 ): 507 - 515 .

Sotiropoulou R E P , Serafidou M , Skodras G . Thermal mercury removal from coals: effect of pyrolysis conditions and kinetic analysis [J ] . Fuel , 2019 , 238 : 44 - 50 .

Yu W H , Han S , Lei Z P , et al . The reaction behavior of volatiles generated from lignite pyrolysis [J ] . Fuel , 2019 , 244 : 22 - 30 .

Jamil K , Hayashi J I , Li C Z . Pyrolysis of a victorian brown coal and gasification of nascent char in CO 2 atmosphere in a wire-mesh reactor [J ] . Fuel , 2004 , 83 ( 7/8 ): 833 - 843 .

Patwardhan P R , Dalluge D L , Shanks B H , et al . Distinguishing primary and secondary reactions of cellulose pyrolysis [J ] . Bioresour. Technol ., 2011 , 102 ( 8 ): 5265 - 5269 .

Patwardhan P R , Satrio J A , Brown R C , et al . Product distribution from fast pyrolysis of glucose-based carbohydrates [J ] . Journal of Analytical and Applied Pyrolysis , 2009 , 86 ( 2 ): 323 - 330 .

Yao Q X , Li Y B , Tang X , et al . Separation of petroleum ether extracted residue of low temperature coal tar by chromatography column and structural feature of fractions by TG-FTIR and PY-GC/MS [J ] . Fuel , 2019 , 245 : 122 - 130 .

杨燕梅 , 张海 , 吕俊复 , 等 . 基于Py-GC联用的煤快速热解实验研究 [J ] . 燃料化学学报 , 2015 , 43 ( 1 ): 9 - 15 .

Yang Y M , Zhang H , Lyu J F , et al . Experimental study on flash pyrolysis of pulverized coals in Py-GC [J ] . Journal of Fuel Chemistry and Technology . 2015 , 43 ( 1 ): 9 - 15 .

Xu S P , Zeng X , Han Z N , et al . Quick pyrolysis of a massive coal sample via rapid infrared heating [J ] . Applied Energy , 2019 , 242 : 732 - 740 .

Zhao X Y , Feng X B , Cao J P , et al . Organic oxygen transformation during pyrolysis of Baiyinhua lignite [J ] . Abstracts of Papers of the American Chemical Society , 2015 , 117 : 106 - 115 .

陈兆辉 , 高士秋 , 许光文 . 煤热解过程分析与工艺调控方法 [J ] . 化工学报 , 2017 , 68 ( 10 ): 3693 - 3707 .

Chen Z H , Gao S Q , Xu G W . Analysis and control methods of coal pyrolysis process [J ] . CIESC Journal , 2017 , 68 ( 10 ): 3693 - 3707 .

徐春霞 . 煤焦油的性质与加工利用 [J ] . 洁净煤技术 , 2013 , 19 ( 5 ): 63 - 67 .

Xu C X . Characteristics and processing utilization of coal tar [J ] . Clean Coal Technology , 2013 , 19 ( 5 ): 63 - 67 .

平传娟 , 周俊虎 , 程军 , 等 . 混煤热解过程中的表面形态 [J ] . 化工学报 , 2007 , 58 ( 7 ): 1798 - 1804 .

Ping C J , Zhou J H , Cheng J , et al . Surface structure of blended coals during pyrolysis [J ] . Journal of Chemical Industry and Engineering(China) , 2007 , 58 ( 7 ): 1798 - 1804 .

李昌伦 , 王永刚 , 林雄超 , 等 . 内在矿物对高灰褐煤热解焦收率及特性的影响 [J ] . 煤炭学报 , 2017 , 42 ( 8 ): 2157 - 2163 .

Li C L , Wang Y G , Lin X C , et al . Impact of inherent minerals on the yield and properties of char from pyrolysis of the lignite with high ash content [J ] . Journal of China Coal Society , 2017 , 42 ( 8 ): 2157 - 2163 .

Zeng D , Hu S T , Sayre A N , et al . On the rank-dependence of coal tar secondary reactions [J ] . Proceedings of the Combustion Institute , 2011 , 33 ( 2 ): 1707 - 1714 .

张盛诚 , 何榕 . 单颗粒煤粉热解时焦油的二次反应和扩散 [J ] . 清华大学学报(自然科学版) , 2016 , 56 ( 6 ): 605 - 610 .

Zhang S C , He R . Secondary reaction and diffusion of tar during single coal particle pyrolysis [J ] . J. Tsinghua Univ . (Sci . & Tech .), 2 016 , 56 ( 6 : 605 - 610 .

何柯佳 , 范浩杰 , 刘翔 , 等 . 二次热解对污泥热解产物影响的研究 [J ] . 锅炉技术 , 2017 , 48 ( 1 ): 75 - 80 .

He K J , Fan H J , Liu X , et al . The second reaction of pyrolysis volatiles from sewage sludges in a fixed-bed reactor [J ] . Boiler Technology , 2017 , 48 ( 1 ): 75 - 80 .

Zhang Y Q , Pan D F , Qu X , et al . Secondary catalytic effect of circulating ash on the primary volatiles from slow and fast pyrolysis of coal [J ] . Energy & Fuels , 2018 , 32 ( 2 ): 1328 - 1335 .

Chen Z H , Li Y J , Lai D G , et al . Coupling coal pyrolysis with char gasification in a multi-stage fluidized bed to co-produce high-quality tar and syngas [J ] . Applied Energy , 2018 , 215 : 348 - 355 .

Ding L , Zhou Z J , Dai Z H , et al . Effects of coal drying on the pyrolysis and in - situ gasification characteristics of lignite coals [J ] . Applied Energy , 2015 , 155 : 660 - 670 .

Ding L , Wei J T , Dai Z H , et al . Study on rapid pyrolysis and in - situ char gasification characteristics of coal and petroleum coke [J ] . International Journal of Hydrogen Energy , 2016 , 41 ( 38 ): 16823 - 16834 .

Zhang Y , Han Z N , Wu H , et al . Interactive matching between the temperature profile and secondary reactions of oil shale pyrolysis [J ] . Energy & Fuels , 2016 , 30 ( 4 ): 2865 - 2873 .

周剑林 , 张书 , 王永刚 , 等 . 褐煤碳结构与含氧官能团分析方法研究 [J ] . 煤炭科学技术 , 2012 , 40 ( 10 ): 116 - 119 .

Zhou J L , Zhang S , Wang Y G , et al . Study on analysis method of lignite carbon structure and oxygen functional groups [J ] . Coal Science and Technology , 2012 , 40 ( 10 ): 116 - 119 .

Niu Z Y , Liu G J , Yin H , et al . Effect of pyridine extraction on the pyrolysis of a perhydrous coal based on in - situ FTIR analysis [J ] . Journal of the Energy Institute , 2019 , 92 ( 3 ): 428 - 437 .

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