褐煤气化半焦对地下水有机污染的模拟脱除

doi:10.16085/j.issn.1000-6613.2016.10.045

化工进展 ›› 2016, Vol. 35 ›› Issue (10): 3337-3343.DOI: 10.16085/j.issn.1000-6613.2016.10.045

褐煤气化半焦对地下水有机污染的模拟脱除

张乐, 谌伦建, 苏毓, 徐冰, 邢宝林, 李郑鑫

河南理工大学化学化工学院, 河南焦作 454003

收稿日期:2016-03-09 修回日期:2016-05-20 出版日期:2016-10-05 发布日期:2016-10-05
通讯作者: 谌伦建,教授,博士,从事煤基碳材料和煤炭地下气化相关研究。E-mail:Lunjianc@hpu.edu.cn
作者简介:张乐(1990-),男,硕士研究生,研究方向为洁净煤技术。E-mail:kjzhangle@163.com。
基金资助:
国家自然科学基金（51174077，51404098）及教育部博士点基金（20124116110002）项目。

Experimental studies on removal of organic contaminants in groundwater by UCG using semi-coke

ZHANG Le, CHEN Lunjian, SU Yu, XU Bing, XING Baolin, LI Zhengxin

School of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo 454003, Hennan, China

Received:2016-03-09 Revised:2016-05-20 Online:2016-10-05 Published:2016-10-05

摘要/Abstract

摘要： 通过自制的煤炭地下气化模拟系统，采用富氧空气/水蒸气两阶段气化工艺，完成内蒙褐煤的地下气化模拟实验。利用傅里叶红外光谱、低温氮气物理吸附仪和扫描电镜对气化残留半焦的表面官能团、孔结构及表面形貌进行表征，进而考察了半焦对苯酚模拟废水中苯酚及煤气洗涤水中总有机碳（TOC）的脱除效果。实验结果表明：半焦孔径主要分布在1~4nm之间，表面有较丰富的含氧官能团及较多的孔洞和裂隙，其孔结构、含氧官能团及孔洞裂隙均有利于污染物在半焦内的迁移和吸附；气化半焦对苯酚的吸附符合Langmuir等温吸附模型，为单分子层吸附；实验条件下最大吸附率为97.95%，吸附量为2.44mg/g；气化半焦对煤气洗涤水中TOC的脱除随吸附时间的变化具有阶段性，脱除率可达88.1%。

关键词: 气化半焦, 煤炭地下气化, 孔结构, 苯酚, 煤气洗涤水

Abstract: Through self-designed underground coal gasification(UCG)model test system,the UCG test of Inner Mongolian lignite was carried out by applying oxygen-enriched air/steam two-stage gasification method. The functional groups,porous characteristics and surface morphology of the semi-coke were characterized by applying Fourier transform infrared spectroscopy(FTIR),automatic specific surface and porosity analyzer and scanning electron microscope(SEM). The uptake of phenol in simulated wastewater and TOC in gas washing water by UCG semi-coke were further investigated. Oxygen enriched functional groups,cracks and pores in range of 1-4 nm were found in semi-coke samples,which may be favorable for the migration and adsorption of pollutants. The results showed that adsorption data of phenol by UCG semi-coke can be well fitted by Langmuir adsorption isotherm. The maximum removal rate of phenol and adsorption capacity could be 97.95% and 2.44mg/g,respectively. The removal rate of TOC in gas washing water varied with the increase of time,and the maximum of 88.1% can be reached.

Key words: semi-coke, UCG, pore structure, phenol, gas washing water

中图分类号:

:TD98
X703.1

张乐, 谌伦建, 苏毓, 徐冰, 邢宝林, 李郑鑫. 褐煤气化半焦对地下水有机污染的模拟脱除[J]. 化工进展, 2016, 35(10): 3337-3343.

ZHANG Le, CHEN Lunjian, SU Yu, XU Bing, XING Baolin, LI Zhengxin. Experimental studies on removal of organic contaminants in groundwater by UCG using semi-coke[J]. Chemical Industry and Engineering Progree, 2016, 35(10): 3337-3343.

参考文献

[1] FRIEDMANN S J,UPADHYE R,KONG F M.Prospects for underground coal gasification in carbon-constrained world[J].Energy Procedia,2009,1(1):4551-4547.
[2] LIANG Jie.Underground coal gasification technology[J].Scientific Chinese,2006,4:82-83.
[3] KAPUSTA K,STAŃCZYK K.Pollution of water during underground coal gasification of hard coal and lignite[J].Fuel,2011,90(5):1927-1934.
[4] 刘淑琴,周蓉,潘佳,等.煤炭地下气化选址决策及地下水污染防控[J].煤炭科学技术,2013,41(5):23-27.
[5] IMRAN Muhammad,KUMAR Dileep,KUMAR Naresh,et al.Environmental concerns of underground coal gasification[J].Renewable and Sustainable Energy Reviews,2014,31:600-610.
[6] KAPUSTA Krzysztof,STANCZYK Krzysztof,WIATOWSKI Marian,et al.Environmental aspects of afield-scale underground coal gasification trial in a shallow coal seam at the Experimental Mine Barbara in Poland[J].Fuel,2013,(113):196-208.
[7] LIU Shuqin,LI Jingang,MEI Mei,et al.Groundwater pollution from underground coal gasification[J].Journal of China University of Mining&Technology,2007,17(4):467-472.
[8] KAPUSTA Krzysztof,STANCZYK Krzysztof.Pollution of water during underground coal gasification of hard coal and lignite[J].Fuel,2011,90(5):1927-1934.
[9] 梁杰,娄元娥.褐煤地下气化过程中铅和砷的迁移规律的研究[J].环境科学学报,2007,27(11):1858-1862
[10] 吴仕生,曾玺,任明威,等.含氧/蒸汽气氛中煤高温分解产物分布及反应性[J].燃料化学学报,2012,40(6):660-665.
[11] 刘淑琴,董贵明,杨国勇,等.煤炭地下气化酚污染迁移数值模拟[J].煤炭学报,2011,36(5):796-801.
[12] 中华人民共和国卫生部,建设部,水利部,国土资源部,国家环境保护总局,等.生活饮用水卫生标准:GB 5749-2006[S].北京:中国标准出版社,2007。
[13] 王媛媛,刘洪涛,李金刚,等.煤炭地下气化"三带"痕量元素析出规律模拟试验研究[J].煤炭学报,2012,37(12):2092-2096.
[14] XU Bing,CHEN Lunjian,XING Baolin,et al.Experimental study on the environmental behaviors of poisonous trace elements in post-gasified residues[J].Advanced Materials Research,2013,805/806:1478-1483.
[15] 段钰锋,周毅,陈晓平,等.煤气化半焦的孔隙结构[J].东南大学学报,2005,35(1):135-139.
[16] MATSUOKA Koichi,AKIHO Hiroyuki,XU Weichun.The physical character of coal char formed during rapid pyrolysis at high pressure[J].Fuel,2005,84(1):63-69.
[17] 张秋香,华志明,赵培,等.活性炭吸附法处理对氨基苯酚生产的废水[J].华东理工大学学报(自然科学版),2004,30(3):245-249.
[18] 范延臻,王宝贞,王琳,等.改性活性炭对有机物的吸附性能[J].环境化学,2001,20(5):444-448.
[19] 徐冰,谌伦建,邢宝林.鹤壁烟煤地下气化模拟试验研究[J].化学工程,2014,12(12):63-66,78.
[20] 张乐,谌伦建,邢宝林,等.烟煤地下气化半焦对模拟废水中苯酚的脱除[J].化工进展,2015,12(9):3790-3794.
[21] 曾昭琼.有机化学[M].3版.北京:高等教育出版社,1993.
[22] LUTYNSKI Marcin,SUPONIK Tomasz.Hydrocarbons removal from underground coal gasification water by organic adsorbents[J].Physicochem Probl Miner Process,2014,50(1):289-298.
[23] 国家环境保护总局.污水排放标准:GB 8978-1996[S].北京:中国标准出版社,1998.

褐煤气化半焦对地下水有机污染的模拟脱除

Experimental studies on removal of organic contaminants in groundwater by UCG using semi-coke

PDF (PC)

可视化

被引次数

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价

[1]	王伟涛, 鲍婷玉, 姜旭禄, 何珍红, 王宽, 杨阳, 刘昭铁. 醛酮树脂基非金属催化剂催化氧气氧化苯制备苯酚[J]. 化工进展, 2023, 42(9): 4706-4715.
[2]	郭立行, 庞蔚莹, 马克遥, 杨镓涵, 孙泽辉, 张盼, 付东, 赵昆. 层序空间多孔结构TiO₂实现高效光催化CO₂还原[J]. 化工进展, 2023, 42(7): 3643-3651.
[3]	刘静, 林琳, 张健, 赵峰. 生物质基炭材料孔径调控及电化学性能研究进展[J]. 化工进展, 2023, 42(4): 1907-1916.
[4]	付佳, 谌伦建, 徐冰, 华绍烽, 李从强, 杨明坤, 邢宝林, 仪桂云. 模拟煤炭气化废水中苯酚的微生物降解[J]. 化工进展, 2023, 42(1): 526-537.
[5]	刘培慧, 刘宇喆, 李琳, 王少辉, 王同华. 具有多级孔道结构的高比表面多孔炭活化策略及VOCs吸附性能[J]. 化工进展, 2022, 41(S1): 613-621.
[6]	杨柳, 王名威, 张耀斌. 磁铁矿负载生物炭强化厌氧微生物处理2,4-二氯苯酚废水[J]. 化工进展, 2022, 41(9): 5065-5073.
[7]	曾龙, 郑贵森, 邓大祥, 孙健, 刘永恒. 多孔壁面微通道换热性能的实验研究[J]. 化工进展, 2022, 41(9): 4625-4634.
[8]	王鲁元, 金春江, 陈惠敏, 程星星, 安东海, 张兴宇, 孙荣峰, 耿文广. 一步热解活化法制备纳米木质素基多孔炭材料[J]. 化工进展, 2022, 41(5): 2582-2592.
[9]	段曼华, 程丹, 肖伟, 杨占旭. 聚丙烯腈/聚酯无纺布微孔复合锂电隔膜的制备及性能[J]. 化工进展, 2022, 41(5): 2615-2622.
[10]	刘瑞琴, 孟凡会, 王立言, 张鹏, 张俊峰, 谭猗生, 李忠. 有序介孔CuCoZr催化剂的制备及其催化合成气制乙醇及高级醇性能[J]. 化工进展, 2022, 41(11): 5870-5878.
[11]	马云波, 王彦斐, 李鹏, 刘欢, 武海洋, 苏衡, 马宣宣, 夏传海. 有机胺对Pd/C催化氯酚加氢脱氯反应的影响[J]. 化工进展, 2022, 41(11): 6185-6194.
[12]	郑超, 康凯, 周术元, 宋华, 白书培. 水分子在多孔炭材料上的吸附行为研究进展[J]. 化工进展, 2021, 40(7): 3803-3812.
[13]	张兰河, 郭琳, 李佳宁, 陈子成, 贾艳萍, 李正, 关晓辉. Fe₂O₃/改性沸石催化剂的制备及其催化臭氧氧化对氯苯酚[J]. 化工进展, 2020, 39(8): 3086-3094.
[14]	马杨, 王佳铭, 贺高红, 阮雪华. 微孔膜法油水分离——表面性质及微观结构的研究进展[J]. 化工进展, 2020, 39(6): 2145-2155.
[15]	郝军正,祝琳华,王红,司甜,何艳萍,孙彦琳. 孔结构可调聚合物微球的制备及贯通性能[J]. 化工进展, 2020, 39(2): 658-666.