Pore structure and fractal analysis for char of sludge blended with calcium magnesium acetate during pyrolysis process

被引：6
作者：
Zhang, Lihui [1 ]
Huang, Yaji [1 ]
Duan, Feng [2 ]
机构：
[1] Southeast Univ, Sch Energy & Environm, Key Lab Energy Thermal Convers & Control, Minist Educ, Nanjing 210096, Jiangsu, Peoples R China
[2] Anhui Univ Technol, Sch Energy & Environm, Maanshan 243002, Anhui, Peoples R China
来源：
ASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING | 2016年 / 11卷 / 05期
基金：
中国博士后科学基金;
关键词：
sewage sludge; pyrolysis; calcium magnesium acetate; pore structure; fractal; MUNICIPAL SEWAGE-SLUDGE; ADSORPTION PROPERTIES; COAL COMBUSTION; BITUMINOUS COAL; EMISSIONS; SURFACE; CARBON; SO2; PARTICULATE; DIMENSIONS;
D O I：
10.1002/apj.1997
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
The changes in pore structure characteristics of sewage sludge blended with calcium magnesium acetate (CMA) during pyrolysis process were investigated. Sludge and its blended fuel with CMA were characterized by N-2 isothermal absorption method, and the data were used to analyze the fractal properties of the obtained samples. Results show that pyrolysis temperature has notable impact on the pore structure and morphology of both samples. The Brunauer-Emmett-Teller (BET) specific surface area (S-BET) of both samples increases greatly as the temperature increases from 400 to 600 degrees C, and these values decrease little at higher temperature. Average pore diameter of both samples shows the inverse trends with those of BET specific surface area. Pore structure and surface morphology are both developed at lower temperature range leading to the increase of fractal dimensions (D-1 and D-2), indicating an increase in the surface and space roughness of samples. (c) 2016 Curtin University of Technology and John Wiley & Sons, Ltd.
引用
收藏
页码：705 / 713
页数：9
相关论文
共 28 条
[1]   Utilization of calcium acetate and calcium magnesium acetate for H2S removal in coal gas cleaning at high temperatures [J].
Adánez, J ;
García-Labiano, F ;
de Diego, LF ;
Fierro, V .
ENERGY & FUELS, 1999, 13 (02) :440-448
[2]   Use of thermally treated waste biological sludge as dye absorbent [J].
Annadurai, G ;
Juang, RS ;
Yen, PS ;
Lee, DJ .
ADVANCES IN ENVIRONMENTAL RESEARCH, 2003, 7 (03) :739-744
[3]   Influence of pyrolysis temperature on characteristics and heavy metal adsorptive performance of biochar derived from municipal sewage sludge [J].
Chen Tan ;
Zhang Yaxin ;
Wang Hongtao ;
Lu Wenjing ;
Zhou Zeyu ;
Zhang Yuancheng ;
Ren Lulu .
BIORESOURCE TECHNOLOGY, 2014, 164 :47-54
[4]   Residue characteristics and pore development of petrochemical industry sludge pyrolysis [J].
Chiang, HL ;
Chao, CG ;
Chang, CY ;
Wang, CF ;
Chiang, PC .
WATER RESEARCH, 2001, 35 (18) :4331-4338
[5]   SO2 Emission from Municipal Sewage Sludge Cocombustion with Bituminous Coal Under O2/CO2 Atmosphere Versus O2/N2 Atmosphere [J].
Cong Shengquan ;
Duan Feng ;
Zhang Yousong ;
Liu Jian ;
Zhang Jinpeng ;
Zhang Lihui .
ENERGY & FUELS, 2013, 27 (11) :7067-7071
[6]   Adsorption properties of activated carbon from sewage sludge to alkaline-black [J].
Fan, Xiaodan ;
Zhang, Xiangkai .
MATERIALS LETTERS, 2008, 62 (10-11) :1704-1706
[7]   Sewage sludge pyrolysis for liquid production: A review [J].
Fonts, Isabel ;
Gea, Gloria ;
Azuara, Manuel ;
Abrego, Javier ;
Arauzo, Jesus .
RENEWABLE & SUSTAINABLE ENERGY REVIEWS, 2012, 16 (05) :2781-2805
[8]   Evolution of pore fractal dimensions for burning porous chars [J].
He, R ;
Xu, XC ;
Chen, CH ;
Fan, HL ;
Zhang, B .
FUEL, 1998, 77 (12) :1291-1295
[9]   Effect of oxygenated liquid additives on the urea based SNCR process [J].
Javed, M. Tayyeb ;
Nimmo, W. ;
Mahmood, Asif ;
Irfan, Naseem .
JOURNAL OF ENVIRONMENTAL MANAGEMENT, 2009, 90 (11) :3429-3435
[10]   Surface characterization and dye adsorptive capacities of char obtained from pyrolysis/gasification of sewage sludge [J].
Jindarom, Charothon ;
Meeyoo, Vissanu ;
Kitiyanan, Boonyarach ;
Rirksomboon, Thirasak ;
Rangsunvigit, Pramoch .
CHEMICAL ENGINEERING JOURNAL, 2007, 133 (1-3) :239-246
123