煤炭工程 ›› 2015, Vol. 47 ›› Issue (12): 114-117.doi: 10.11799/ce201512035

• 研究探讨 • 上一篇    下一篇

神府煤中低温热解前后表面官能团和孔隙变化规律的研究

赵世永1,吴沛沛1,徐婕2,李鑫3,张生军3,龙江4   

  1. 1. 西安科技大学
    2. 陕西煤业化工技术研究院有限公司
    3. 陕西煤业化工技术研究院有限责任公司
    4. 国土资源部煤炭资源勘查与综合利用重点实验室
  • 收稿日期:2015-07-28 修回日期:2015-09-22 出版日期:2015-12-11 发布日期:2015-12-29
  • 通讯作者: 赵世永 E-mail:zhaoshiyong9@163.com

Study?on?variation?of?facial?functional?groups?and?pore?before?and?after?the middle and low?temperature?pyrolysis?of?Shenfu?coal

  • Received:2015-07-28 Revised:2015-09-22 Online:2015-12-11 Published:2015-12-29

摘要: 为研究神府煤热解前后表面官能团及孔隙的变化规律,选取神木红柳林煤矿原煤及以其为原料通过立式炉热解生产的半焦为研究对象,采用氮气吸附、扫描电镜、红外光谱及X光电子能谱等分析手段,对原煤及半焦样品进行了分析。实验结果表明,与原煤相比,半焦比表面积变大,拥有更发达的孔隙结构;半焦与原煤官能团相似,但含量不同;煤热解后,表面官能团发生变化,半焦表面C-C、C-O键增加,C-H、C=O和O=C-O键减少。

关键词: 神府煤, 半焦, 官能团, 孔结构, 比表面积, XPS

Abstract: Shenfu raw coal and vertical furnace semi-coke were used to be investigated.Using Nitrogen adsorption, XPS, FTIR spectrum and SEM to analyses the raw coal and semi-cokes, which showed that the specific surface area was larger and the pore structures were more developed of semi-cokes,compared with raw coal.Functional groups of semi-cokes and raw coal are similar while the contents are different.Facial functional groups have been changed after coal pyrolysis, semi-cokes facial C—C、C—O bonds were increased, C—H、C=O and O=CO bonds were reduced.

Key words: Shenfu raw coal, semi-cokes, functional?groups, pore structure, XPS

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