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分散剂与神府煤成浆性的匹配规律
  • ISSN号:0438-1157
  • 期刊名称:《化工学报》
  • 时间:0
  • 分类:TQ530[化学工程—煤化学工程]
  • 作者机构:西安科技大学化学与化工学院,陕西西安710054
  • 相关基金:国家自然科学基金项目(51174279); 神华宁煤集团有限责任公司科技创新项目(2014095)
中文摘要:

采用傅里叶变换衰减全反射红外光谱法(ATR-FTIR)研究了分散剂官能团特征与神府煤(SFC)成浆性匹配规律。基于4种分散剂的ATR-FTIR分析结果,采用Gaussian分峰法计算了这些分散剂中亲水基团(—OH、—C—O、—C=O、—SO~-_3)和疏水基团(—CH_3、—CH_2、—C=C)的分布,研究了分散剂中亲、疏水基团对神府煤成浆性的影响。结果表明:用ZFZ分散剂所制备的神府水煤浆(SFCWS)的定黏浓度最高,用MZS分散剂制备的SFCWS的浓度最低。这主要归因于ZFZ分散剂有较多的亲水基团,相对较少的疏水基团,与神府煤有良好匹配性。采用偏最小二乘法(PLS)建立了分散剂与神府煤定黏浓度预测模型和匹配度模型,选用JJN、DNC和SMS分散剂验证了模型的精确性,误差在±1%以内,同时定黏浓度预测值和匹配度的预测值与定黏浓度的实验值变化趋势一致。

英文摘要:

The matching rules between dispersants and Shenfu coals(SFC) slurriability were investigated by using attenuated total internal reflectance Fourier transform infrared spectroscopy(ATR-FTIR). Based on the ATR-FTIR results of four kinds of dispersants, the hydrophilic groups(—OH、—C—O、—C=O、—SO~-_3) and hydrophobic groups(—CH_3、—CH_2、—C=C) were calculated by Gaussian peak separation method, respectively, and the effects of hydrophilic and hydrophobic groups on the SFC slurriability were also discussed. The results showed that the slurry concentration of Shenfu coal water slurry(SFCWS) with ZFZ dispersants was the highest, but with MZS dispersants it was the lowest. The results indicated that ZFZ was a good kind of dispersant for SFCWS because of its less hydrophobic groups and more hydrophilic groups. A slurry concentration prediction model and matching degree model between the dispersants and SFC were further proposed by partial least squares method. The models were proved by using JJN, DNC and SMS dispersants with the errors of predictive slurry concentration within ±1%. The change trend of predictive slurry concentration and matching degree was consistent with the actual slurry concentration.

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期刊信息
  • 《化工学报》
  • 中国科技核心期刊
  • 主管单位:中国科学技术协会
  • 主办单位:中国化工学会 化学工业出版社
  • 主编:李静海
  • 地址:北京市东城区青年湖南街13号
  • 邮编:100011
  • 邮箱:hgxb126@126.com
  • 电话:010-64519485
  • 国际标准刊号:ISSN:0438-1157
  • 国内统一刊号:ISSN:11-1946/TQ
  • 邮发代号:2-370
  • 获奖情况:
  • 中国科协优秀期刊二等奖,化工部科技进步二等奖,北京全优期刊奖,中国期刊方阵“双效”期刊,第三届中国出版政府奖
  • 国内外数据库收录:
  • 俄罗斯文摘杂志,美国化学文摘(网络版),荷兰文摘与引文数据库,美国工程索引,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊(2004版),中国北大核心期刊(2008版),中国北大核心期刊(2011版),中国北大核心期刊(2014版),中国北大核心期刊(2000版)
  • 被引量:35185