[1]王思同,杨志远,赵敏捷,等.神府兰炭粉改性制浆的实验研究[J].西安科技大学学报,2016,(05):680-684.[doi:10.13800/j.cnki.xakjdxxb.2016.0512]
 WANG Si-tong,YANG Zhi-yuan,ZHAO Min-jie,et al.Preparation and mechanism of Shenfu semi-coke modification for the water semi-coke slurry[J].Journal of Xi'an University of Science and Technology,2016,(05):680-684.[doi:10.13800/j.cnki.xakjdxxb.2016.0512]
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神府兰炭粉改性制浆的实验研究(/HTML)
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西安科技大学学报[ISSN:1672-9315/CN:61-1434/N]

卷:
期数:
2016年05期
页码:
680-684
栏目:
出版日期:
2016-09-30

文章信息/Info

Title:
Preparation and mechanism of Shenfu semi-coke modification for the water semi-coke slurry
文章编号:
1672-9315(2016)05-0680-05
作者:
王思同杨志远赵敏捷李智华
西安科技大学 化学与化工学院,陕西 西安 710054
Author(s):
WANG Si-tongYANG Zhi-yuanZHAO Min-jieLI Zhi-hua
College of Chemistry and Chemical Engineering,Xi'an University of Science and Technology,Xi'an 710054,China
关键词:
兰炭粉 微波改性 偶联剂 水焦浆
Keywords:
semi-coke microwave modification coupling reagents water semi-coke slurry
分类号:
TQ 536
DOI:
10.13800/j.cnki.xakjdxxb.2016.0512
文献标志码:
A
摘要:
中国兰炭资源丰富,但工业生产中所产生兰炭粉粒度较小,通常被低价卖掉或随意堆弃,既浪费资源又污染环境。文中以神府兰炭粉为原料,选用市售分散剂腐植酸钠、木质素磺酸钠、萘磺酸甲醛缩聚物制备水焦浆,其中腐殖酸钠效果最好,用量为0.2%时最高成浆浓度可达61.0%; 进一步研究了微波辐射、臭氧氧化及偶联剂包覆对兰炭粉的改性效果,发现最佳改性条件为:微波辐射425 W,50 s,臭氧处理90 min,KH550型偶联剂最佳用量为1.5%; 当成浆浓度为55%时,改性前粘度为632 MPa·s,改性后分别降到560,499,584 MPa·s.采用微波与分散剂联合处理,其最高成浆浓度可达62.0%.结构测试及红外分析表明改性后的兰炭粉的孔结构及表面含氧官能团有所改变,均有利于改善兰炭粉的成浆性能。
Abstract:
Semi-coke was considered as an abundant resource in China.Because of the small powder particle size during the industrial production,semi-coke was usually sold at a low price or abandoned,which was a waste of resources and harmful to the environment.In this paper,semi-coke was regarded as raw material.Three commercially available dispersants(NaHA,SLS and NSF)were chosen to prepare the water semi-coke slurry.The best one was NaHA that the highest slurry concentration could be reached to 61.0% with dosage of 0.2%.The modification effects of semi-coke,such as microwave irradiation,ozone oxidation and coupling reagent coating were studied emphatically.The results showed the optimum conditions were as follows:the microwave pretreatment power and time were 425 W and 50 s,respectively,the ozone pretreatment time was 90 min,and the dosage of KH550 reagent was 1.5%.When the water semi-coke slurry concentration was 55%,the viscosity could be decreased from 632 MPa·s to 560,499,584 MPa·s after modification,respectively.Combined microwave irradiation with dispersant,the highest slurry concentration could be reached to 64.0%.By analysis of pore structure test and FTIR,the pore structure and surface oxygenic functional groups of semi-coke had been changed through modification methods,which were benefit to improve the property of water semi-coke slurry.

参考文献/References:

[1] 田宇红,兰新哲,周 军,等.微波辐射-KOH活化兰炭粉制备活性炭[J].化学工程,2010,38(10):225-228. TIAN Yu-hong,LAN Xin-zhe,ZHOU Jun,et al.Preparation of activated carbon from blue coke powder by microwave radiation and KOH activation[J].Chemical Engineering,2010,38(10):225-228.
[2] 李 晔,张 博.替代能源的新选择——水焦浆[J].广东化工,2011,38(7):71-72. LI Ye,ZHANG Bo.Clean fuel of petroleum coke water mixture[J].Guangdong Chemical Industry,2011,38(7):71-72.
[3] 王 坤,赵 辉,刘 钏,等.废弃焦粉及半焦的脱灰活化研究[J].选煤技术,2012(6):38-41. WANG Kun,ZHAO Hui,LIU Chuan,et al.Research on deashing and activation of the abandoned coke powders and semi-cokes[J].Coal Preparation Technology,2012(6):38-41.
[4] 赵卫东,刘建忠,周俊虎,等.水焦浆/水煤浆燃烧特性对比研究[J].浙江大学学报,2008,42(10):1 795-1 800. ZHAO Wei-dong,LIU Jian-zhong,ZHOU Jun-hu,et al.Combustibility of petroleum coke water slurry compared with coal water slurry[J].Journal of Zhejiang University,2008,42(10):1 795-1 800.
[5] 王春蓉.半焦改性技术研究及应用进展[J].化学与黏合,2011,33(3):56-58. WANG Chun-rong.Progress in the application and research on modification technology for semi-coke[J].Chemistry and Adhesion,2011,33(3):56-58.
[6] Cheng J,Zhou J H,Li Y C,et al.Improvement of coal water slurry property through coal physicochemical modifications by microwave irradition and thermal heat[J].Energy Fuels,2008,22:2 422-2 448.
[7] 韩欣欣,唐 鹏,李宇慧,等.水热改性对半焦性质的影响[J].化工进展,2010(S1):431-434. HAN Xin-xin,TANG Peng,LI Yu-hui,et al.Effect of hydrothermal modification on characteristics of semi-coke[J].Chemical Industry and Engineering Process,2010(S1):431-434.
[8] CHENG Jun,ZHOU Jun-hu,LI Yan-chang,et al.Improvement of coal water slurry property through coal physicochemical modi cations by microwave irradiation and thermal heat[J].Energy & Fuels,2008,22(4):2 422-2 428.
[9] 魏 辉.聚醚大单体及水煤浆分散剂的合成与性能研究[D].西安:陕西科技大学,2011. WEI Hui.Study on the synthesis and properties of polyether monomers and coal water study dispersant[D].Xi'an:Shaanxi University of Science & Technology,2011.

备注/Memo

备注/Memo:
收稿日期:2016-02-10 责任编辑:高 佳
基金项目:国家科技重大专项资助项目(2011ZX05037-003); 陕西省科技攻关项目资助项目(2010K07-20)
通讯作者:杨志远(1968-),男,江西抚州人,教授,博士(后),E-mail:zhiyuanyang@126.com
更新日期/Last Update: 2015-10-30