膜科学与技术

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ClassificationCode：TQ536，TQ536.1

year,volume(issue):pagination： 2017,37(2):78-87

Abstract：

The sol of the coal dense medium component which was produced by the extraction and stripping method was chosen as the coating solution. Through the filming and charring, it was successfully prepared as coal-based ceramics-carbon composite membranes. The carbonization conditions on the performance of the composite membrane prepared was studied, and the relationship between the carbonization process conditions and the composite membrane porosity, water permeability as well as rejection rate of the Fe(OH)3 colloidal and bovine serum albumin (BSA) sol was inspected. Then thermal evolution process and mechanism of the separation layer was discussed. The results show that: the heating rate, intermediate constant temperature, the intermediate holding time and final carbonization temperature in the carbonization process will affect the generation rate of the separation layer pyrolytic gas and liquid, as well as the state of adhering the solid becoming metaplast, thereby affect to the composite carbon membrane separation layer pore structure and distribution, and ultimately affect porosity, permeability and retention rate of the composite membrane; under the following carbonization process conditions: heating rate with 4 oC/min, intermediate constant temperature and time respectively at 460 oC and 20 min, final carbonization temperature at 600 oC, the composite membrane have better retention rate effect on Fe(OH)3 colloids; under the following carbonization process conditions: heating rate with 4 oC/min, intermediate constant temperature and time respectively at 490 oC and 20 min, final carbonization temperature at 800 oC, the composite membrane have better entrapped results on the BSA sol. The coal dense medium component major generates liquid and gas phase material in pyrolysis carbonization process due to its specific composite structure, and substantially no swelling effect in the process, this feature is very conducive to prepare composite membrane separation layer by the coal dense medium component.

Funds：

国家自然科学基金（51274201、51674260）；教育部高等学校博士学科点专项科研基金（20130095110006）

AuthorIntro：

作者简介：秦志宏（1963-），男，安徽安庆人，博士，教授。从事煤转化技术方面研究。电话:13852034193, 邮箱 : qinzh1210@163.com

Reference：

[1] 朱桂茹，王同华，李家刚，等．炭膜研究的新进展[J]．炭素技术，2002，4：22-27．
[2] 刘作华，杜军，李晓红，等．炭膜的制备及应用[J]．重庆大学学报，2007，27（2）：63-67．
[3] 宋成文，邱英华，王同华，等.成膜条件对聚丙烯腈炭膜性能的影响[J].化工新型，2007，35（11）：45-46.
[4] 王同华，魏微，刘淑琴，尤隆渤，等 .管状多孔炭膜的研究[J].新型炭材料，2000，15（1）：6-10.
[5] 刘颖.管式复合炭膜的制备及气体分离性能[D].大连：大连理工大学，2009.
[6] Rao M B，Sircar S. Performance and pore characterization of nanoporous carbon membranes for gas separation[J]. J Mermbr Sci，1996，110(1):109-118.
[7] Fuertes A B. Adsorption-selective carbon membrane for gas separation[J]. J Mermbr Sci，2000，177:9-10.
[8] 王树森,曾美云,王志忠.分子筛炭膜的形态结构研究[J].北京工业大学学报,1995,21,(4):90—96.
[9] 陈冬梅，秦志宏，李新艳，等. 基于煤沥青质族组分的陶瓷-炭复合膜制备[J]，化工新型材料，2012，40(12):40-51.
[10] ZHANG L Y，QIN Z H，LI X Y，et al. Preparation and characterization of a composite membrane based on asphaltene component of coal[J]. Min Sci Tech，2011, 21(3):407-411.
[11] QIN Z H，HOU C L，CHEN J，et al. Group separation of coal components and new ideas of coal utilization as petroleum[J]. Min Sci Tech，2009，19(5):636-641.
[12] 秦志宏，巩涛，李兴顺，等.煤萃取过程的TEM分析与煤嵌布结构模型[J]. 中国矿业大学学报,2008，37(4)：443-448.
[13] 黄仲涛，曾昭槐，钟邦克，等.无机膜技术及其应用[M]．北京：中国石化出版社，1999：142-145.
[14] 马玲玲.分离煤族组分制备泡沫炭及泡孔结构调制[D].徐州：中国矿业大学，2014.

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