• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Energy Conversion & Management >Influence of inherent minerals and pyrolysis temperature on the yield of pyrolysates of some Pakistani coals
【24h】

Influence of inherent minerals and pyrolysis temperature on the yield of pyrolysates of some Pakistani coals

机译：固有矿物和热解温度对某些巴基斯坦煤的热解产物产率的影响

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

An analytical method has been developed to quantitize tar, liquids and gaseous products resulting from the flash pyrolysis of sub-bituminous Makarwal coal. The method involves the thermal decomposition of 200 mg of 85-mesh size coal at 690 ℃ under the flow of nitrogen using Shimadzu PYR-2A open tubular pyrolyzer. The resulting tar and liquid fractions were separated using two traps at the exit of the pyro-lyzer while the gaseous products leaving the traps were on line injected to gas chromatograph equipped with porapak Q column and flame ionization detector for the analysis. Effect of demineralization on the yields of products was investigated by treating raw samples with 2 M HCl. Removal of inherent minerals from coal by acid wash decreased the yield of total volatiles indicating catalytic properties of mineral under the condition used in present study. The influence of pyrolysis temperature on the yield of pyrolysates and hydrocarbon gases, resulting from raw coal samples, was studied over the temperature range of 500-770 ℃.
机译：已经开发了一种分析方法，用于量化由亚烟煤Makarwal煤的快速热解产生的焦油，液体和气态产物。该方法涉及使用Shimadzu PYR-2A开放式管式热解器在氮气流下在690℃下热分解200 mg 85目大小的煤。在热解器出口处使用两个捕集阱分离得到的焦油和液体馏分，同时将离开捕集阱的气态产物在线注入装有porapak Q柱和火焰离子化检测器的气相色谱仪中进行分析。通过用2 M HCl处理原始样品，研究了脱盐对产品收率的影响。通过酸洗除去煤中固有的矿物会降低总挥发物的产率，这表明在本研究中使用的条件下矿物的催化性能。在500-770℃的温度范围内，研究了热解温度对原煤样品产生的热解产物和烃气收率的影响。

著录项

  • 来源
    《Energy Conversion & Management》 |2009年第5期|1163-1171|共9页
  • 作者

    Tauqeer Ahmad; Iftikhar A. Awan; Jan Nisar; Imtiaz Ahmad;

  • 作者单位

    National Center of Excellence in Physical Chemistry, University of Peshawar, Peshawar 25120, Pakistan;

    National Center of Excellence in Physical Chemistry, University of Peshawar, Peshawar 25120, Pakistan;

    National Center of Excellence in Physical Chemistry, University of Peshawar, Peshawar 25120, Pakistan;

    Institute of Chemical Sciences, University of Peshawar, Peshawar, Pakistan;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    coal pyrolysis; demineralization; temperature range; gas chromatography;

    机译：煤热解脱矿质温度范围;气相色谱法;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号