煤热溶技术及热溶物在配煤炼焦过程中的应用

doi:10.16085/j.issn.1000-6613.2017-2419

化工进展 ›› 2018, Vol. 37 ›› Issue (11): 4226-4236.DOI: 10.16085/j.issn.1000-6613.2017-2419

煤热溶技术及热溶物在配煤炼焦过程中的应用

段小宝, 申岩峰, 孔娇, 王美君, 鲍卫仁, 常丽萍

太原理工大学煤科学与技术教育部和山西省重点实验室, 山西太原 030024

收稿日期:2017-11-23 修回日期:2018-02-06 出版日期:2018-11-05 发布日期:2018-11-05
通讯作者: 常丽萍,教授,博士生导师,研究方向为煤清洁利用。E-mail:lpchang@tyut.edu.cn。
作者简介:段小宝(1993-),男,硕士研究生,研究方向为煤清洁利用。E-mail:1910973282@qq.com。
基金资助:
国家自然科学基金青年项目（21406152）、山西省煤基重点科技攻关项目（MJH2014-02，MJH2015-04）、NSFC-山西煤基低碳联合基金（U1510111）及山西省回国留学人员科研项目（2017-重点3）。

Thermal dissolution technology of coal and application of soluble portions in coal blending for coke-making

DUAN Xiaobao, SHEN Yanfeng, KONG Jiao, WANG Meijun, BAO Weiren, CHANG Liping

Key Laboratory of Coal Science and Technology, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China

Received:2017-11-23 Revised:2018-02-06 Online:2018-11-05 Published:2018-11-05

摘要/Abstract

摘要： 煤热溶是近年发展起来的一种高效洁净煤技术。煤的热溶物因具有灰含量极低、热值高、热塑性好等特性，受到越来越多的关注。本文首先简述了煤热溶过程和热溶物的制备方式，指出不同制备方式优缺点的同时，介绍了热溶工艺在工业化方面的最新进展；然后详细分析了煤种特性、热溶溶剂、热溶温度等因素对热溶物收率及品质的影响，认为应遵循“因煤而异”的原则对热溶过程进行调控。基于热溶物良好的热塑性，着重介绍了热溶物在配煤炼焦过程中的应用。在配煤中添加一定比例热溶物可显著改善焦炭冷热态性能，提高焦炭质量；此外，热溶物在配高硫煤炼焦过程中对硫分的定向调控作用也应予以关注，这对节约优质炼焦煤资源具有重要的意义。而降低生产成本、提高热溶收率是解决热溶物工业化制备及应用的关键。

关键词: 热溶, 煤种特性, 热溶条件, 热塑性, 配煤炼焦

Abstract: Thermal dissolution of coal is a highly efficient conversion and utilization technology of coal developed in recent years. The soluble portions with low ash content, high heat value and better thermoplasticity, have received more and more concerns. This paper firstly introduced the process of thermal dissolution and the preparation methods, and some advantages and disadvantages of preparation methods were pointed out. Meanwhile, the latest progress in industrialization was described. The factors including coal properties, solvent, temperature and so on, were emphatically discussed, which were of great influence on the yield and quality of soluble portions. The author pointed that thermal dissolution process should be regulated according to properties vary from coal to coal. In addition, the application of soluble portions in coal blending for coke-making based on its excellent thermoplasticity was mainly introduced. A certain proportion of soluble portions blended for coke-making could significantly improve the quality of coke. In addition, the effect of soluble portions on sulfur directional regulation during blending coking with high sulfur coal should be paid attention, which was important for saving of high-quality coking coal resources. At last, it concluded that reducing production cost and improving yield were the key to realize the industrial production and application of soluble portions.

Key words: thermal dissolution, coal properties, operation conditions, thermoplasticity, coking

中图分类号:

TQ53

段小宝, 申岩峰, 孔娇, 王美君, 鲍卫仁, 常丽萍. 煤热溶技术及热溶物在配煤炼焦过程中的应用[J]. 化工进展, 2018, 37(11): 4226-4236.

DUAN Xiaobao, SHEN Yanfeng, KONG Jiao, WANG Meijun, BAO Weiren, CHANG Liping. Thermal dissolution technology of coal and application of soluble portions in coal blending for coke-making[J]. Chemical Industry and Engineering Progress, 2018, 37(11): 4226-4236.

参考文献

[1] RAHMAN M, SAMANTA A, GUPTA R. Production and characterization of ash-free coal from low-rank Canadian coal by solvent extraction[J]. Fuel Processing Technology, 2013, 115:88-98.
[2] BLESSING J E, ROSS D S. Supercritical solvents and the dissolution of coal and lignite[C]//LARSEN J. Organic chemistry of coal. ACS Symposium Series, 1978, 71:171-182.
[3] 李显, 朱贤青, 肖黎, 等. 酸洗脱灰及离子交换对低阶煤热溶剂提质分离的影响[J]. 燃料化学学报, 2014, 42(8):897-904. LI Xian, ZHU Xianqing, XIAO Li, et al. Degradative solvent extraction of demineralized and ion-exchanged low-rank coals[J]. Journal of Fuel Chemistry and Technology, 2014, 42(8):897-904.
[4] MIURA K, SHIMADA M, MAE K, et al. Extraction of coal below 350℃ in flowing non-polar solvent[J]. Fuel, 2011, 80(11):1573-1582.
[5] TAKANOHASHI T, SHISHIDO T, SAITO I. Effects of hyper-coal addition on coke strength and thermoplasticity of coal blends[J]. Energy & Fuels, 2008, 22(3):1779-1783.
[6] OKUYAMA N, KOMATSU N, SHIGEHISA T, et al. Hyper-coal process to produce the ash-free coal[J]. Fuel Processing Technology, 2004, 85(8/9/10):947-967.
[7] LI C, TAKANOHASHI T, YOSHIDA T, et al. Effect of acid treatment on thermal extraction yield in ashless coal production[J]. Fuel, 2004, 83(6):727-732.
[8] ASHIDA R, MORIMOTO M, MAKINO Y, et al. Fractionation of brown coal by sequential high temperature solvent extraction[J]. Fuel, 2009, 88(8):1485-1490.
[9] 石智杰, 张胜振, 邢凌燕. 低阶煤在煤液化衍生油中的热萃取性能研究[J]. 煤炭转化, 2009, 32(1):34-39. SHI Zhijie, ZHANG Shengzhen, XING Lingyan. Thermal extraction behavior of low rank coal in the coal derived liquids[J]. Coal Conversion, 2009, 32(1):34-39.
[10] KASHIMURA N, TAKANOHASHI T, MASAKI K, et al. Relationship between thermal extraction yield and oxygen-containing functional groups[J]. Energy & Fuels, 2006, 20(5):2088-2092.
[11] KAWASHIMA H, KOYANO K, TAKANOHASHI T. Changes in nitrogen functionality due to solvent extraction of coal during HyperCoal production[J]. Fuel Processing Technology, 2013, 106:275-280.
[12] MIURA K, MAE K, SHINDO H, et al. Extraction of low rank coals by coal derived oils at 350℃ for producing clean fuels[J]. Journal of Chemical Engineering of Japan, 2003, 36(7):742-750.
[13] OKUYAMA N, KOMATSU N, SHIGEHISA T, et al. Hyper-coal process to produce the ash-free coal[J]. Fuel Processing Technology, 2004, 85(8/9/10):947-967.
[14] YOSHIDA T, TAKANOHASHI T, SAKANISHI K, et al. Relationship between thermal extraction yield and softening temperature for coals[J]. Energy & Fuels, 2002, 16(4):1006-1007.
[15] TAKANOHASHI T, SHISHIDO T, KAWASHIMA H, et al. Characterisation of HyperCoals from coals of various ranks[J]. Fuel, 2008, 87(4/5):592-598.
[16] MASAKI K, KASHIMURA N, TAKANOHASHI T, et al. Effect of pretreatment with carbonic acid on "HyperCoal" (ash-free coal) production from low-rank coals[J]. Energy & Fuels, 2005, 19(5):2021-2025.
[17] YOSHIDA T, LI C, TAKANOHASHI T, et al. Effect of extraction condition on "HyperCoal" production (2)-effect of polar solvents under hot filtration[J]. Fuel Processing Technology, 2004, 86(1):61-72.
[18] SHUI H F, ZHOU Y, LI H P, et al. Thermal dissolution of Shenfu coal in different solvents[J]. Fuel, 2013, 108:385-390.
[19] MASAKI K, YOSHIDA T, LI C, et al. The effects of pretreatment and the addition of polar compounds on the production of HyperCoal from subbituminous coals[J]. Energy & Fuels, 2004, 18(4):995- 1000.
[20] YOSHIDA T, TAKANOHASHI T, SAKANISHI K, et al. The effect of extraction condition on "HyperCoal" production (1) -under room-temperature filtration[J]. Fuel, 2002, 81(11/12):1463-1469.
[21] MIURA K, NAKAGAWA H, ASHIDA R, et al. Production of clean fuels by solvent skimming of coal at around 350℃[J]. Fuel, 2004, 83(6):733-738.
[22] KASHIMURA N, TAKANOHASHI T, SAITO I. Upgrading the solvent used for the thermal extraction of sub-bituminous coal[J]. Energy & Fuels, 2006, 20(5):2063-2066.
[23] LI Z K, WEI X Y, YAN H L, et al. Advances in lignite extraction and conversion under mild conditions[J]. Energy & Fuels, 2015, 29(11):6869-6886.
[24] LEI Z P, CHENG L L, ZHANG S F, et al.Dissolution performance of coals in ionic liquid 1-butyl-3-methyl-imidazolium chloride[J]. Fuel Processing Technology, 2015, 129:222-226.
[25] 唐帅. 煤热解萃取及萃取产物对单种煤成焦性能影响的研究[D]. 鞍山:辽宁科技大学, 2013. TANG Shuai. Study on pyrolytic extraction of coal and extraction product on the coking performances from single coal[D]. Anshan:University of Science and Technology Liaoning, 2013.
[26] SHUI H F, ZHAO W J, SHAN C J, et al. Caking and coking properties of the thermal dissolution soluble fraction of a fat coal[J]. Fuel Processing Technology, 2014, 118:64-68.
[27] 单传俊. 肥煤的热溶及其物在炼焦配中应用[D]. 马鞍山:安徽工业大学, 2012. SHAN Chuanjun. Thermal extraction of rich coal and application of the extract in coal blending for coke-making[D]. Ma'anshan:Anhui University of Technology, 2012.
[28] SHUI H F, HE F, WU Y, et al. Study on the use of the thermal dissolution soluble fraction from Shenfu sub-bituminous coal in coke-making coal blends[J]. Energy & Fuels, 2015, 29(3):1558- 1563.
[29] TAKANOHASHI T, OHKAWA T, YANAGIDA T, et al. Effect of maceral composition on the extraction of bituminous coals with carbon disulphide-N-methyl-2-pyrrolidinone mixed solvent at room temperature[J]. Fuel, 1993, 72(1):51-55.
[30] VAN KREVELEN D W. Coal:typology-chemistry-physics- constitution[M]. Elsevier, Amsterdam; 1981:Chapter 10.
[31] OTAKE Y, SUUBERG E M. Temperature dependence of solvent swelling and diffusion processes in coals[J]. Energy & Fuels, 1997, 11(6):1155-1164.
[32] TAKANOHASHI T, YOSHIDA T, KAWASHIMA H. Molecular simulation of relaxation behaviors of coal-aggregated structures[J]. Fuel Processing Technology, 2002, 77/78:53-60.
[33] OPAPRAKASIT P, SCARONI A W, PAINTER P C. Ionomer-like structure and cation interactions in argonne premiums coals[J]. Energy & Fuels, 2002, 16(3):543-551.
[34] KASHIMURA N, TAKANOHASHI T, SAITO I. Effect of noncovalent bonds on the thermal extraction of subbituminous coals[J]. Energy & Fuels, 2006, 20(4):1605-1608.
[35] SHUI H F, WANG Z C, WANG G Q. Effect of hydrothermal treatment on the extraction of coal in the CS₂/NMP mixed solvent[J]. Fuel, 2006, 85(12/13):1798-1802.
[36] SHUI H F, LI H P, CHANG H T, et al. Modification of sub-bituminous coal by steam treatment:caking and coking properties[J]. Fuel Processing Technology, 2011, 92(12):2299-2304.
[37] ⅡNO M, TAKANOHASHI T, LI C, et al. Increase in extraction yields of coals by water treatment[J]. Energy & Fuels, 2004, 18(5):1414-1418.
[38] HALL P J, THOMAS K M, MARSH H. The relation between coal macromolecular structure and solvent diffusion mechanisms[J]. Fuel, 1992, 71(11):1271-1275.
[39] 叶鹏超. 锡林郭勒褐煤的热溶及其热溶物的配煤炼焦研究[D].马鞍山:安徽工业大学, 2016. YE Pengchao. Study on the properties of the thermal dissolution of Xilinguole lignite and the use of their TDSFs in the coal blending for coke-making[D]. Ma'anshan:Anhui University of Technology, 2016.
[40] OKUYAMA N, KOMATSU N, SHIGEHISA T. Study on the hyper-coal process for brown coal upgrading[J]. Coal Preparation, 2005, 25:295-311.
[41] 李祥, 秦志宏, 卜良辉, 等. 炼焦煤的官能团结构分析及其黏结性产生机理[J]. 燃料化学学报, 2016, 44(4):385-393. LI Xiang, QIN Zhihong, BU Lianghui, et al. Structural analysis of functional group and mechanism investigation of caking property of coking coal[J]. Journal of Fuel Chemistry and Technology, 2016, 44(4):385-393.
[42] TAKANOHASHI T, SHISHIDO T, SAITO I. Effects of hyper-coal addition on coke strength and thermoplasticity of coal blends[J]. Energy &Fuel, 2008, 22(3):1779-1783.
[43] 朱亚明, 唐帅, 赵雪飞, 等. 长焰煤热解萃取物对单种煤成焦性的影响[J]. 燃料与化工, 2014, 47(1):1-3. ZHU Yaming, TANG Shuai, ZHAO Xuefei, et al. Influence of pyrolytic extracts of long flame coal to the coking properties of individual coal[J]. Fuel & Chemical Processes, 2014, 47(1):1-3.
[44] NTSHIBATA Y, MATSUDAIRA K, NISHIMURA M, et al. Effect of HyperCoal addition to coal on coke quality[C]//ICSTI. 2006:640-643.

煤热溶技术及热溶物在配煤炼焦过程中的应用

Thermal dissolution technology of coal and application of soluble portions in coal blending for coke-making

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 8

编辑推荐

Metrics

本文评价

[1]	孙国旗, 王维, 宋兵, 王亮, 邵瑞琪, 徐志伟, 罗仕刚, 闫民杰, 王立晶, 钱晓明. 聚乙烯醇热塑改性研究进展[J]. 化工进展, 2022, 41(S1): 293-306.
[2]	罗继永, 张道海, 周密, 田琴, 秦舒浩. PBT/TPU/DOPO-MA阻燃复合材料的制备及性能[J]. 化工进展, 2020, 39(8): 3221-3229.
[3]	刘群, 张玉苍. 改性淀粉基生物降解塑料的研究进展[J]. 化工进展, 2020, 39(8): 3124-3134.
[4]	王玉龙, 李雅琼, 贺茂勇, 李振中. 异氰酸酯对聚乳酸/热塑性聚氨酯共混物性能的影响[J]. 化工进展, 2019, 38(05): 2314-2319.
[5]	解月伟, 解一军, 高晓哲, 樊芳. 紫外光固化可剥离胶的研究与制备[J]. 化工进展, 2015, 34(12): 4301-4304,4342.
[6]	李艳红1，2，赵文波2，常丽萍1，王美君1，王平艳2，杨荣2. 炼焦机理和焦炭质量预测的研究进展[J]. 化工进展, 2014, 33(05): 1142-1150.
[7]	姚东明，何和智. 尿素甘油共塑化热塑性淀粉 [J]. 化工进展, 2011, 30(9): 2018-.
[8]	褚文娟，丁雪佳，张德强，袁园，张丽娟，韩海军. 羧基丁腈胶粉改性热塑性聚酯弹性体的性能 [J]. 化工进展, 2010, 29(11): 2130-.