A NEW COAL FLASH PYROLYSIS METHOD UTILIZING EFFECTIVE RADICAL TRANSFER FROM SOLVENT TO COAL
A NEW COAL FLASH PYROLYSIS METHOD UTILIZING EFFECTIVE RADICAL TRANSFER FROM SOLVENT TO COAL
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DOI：
10.1021/ef00026a020
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发表时间：
1991-03
期刊：
影响因子：
5.3
通讯作者：
K. Miura;K. Mae;S. Asaoka;Tomonori Yoshimura;K. Hashimoto
中科院分区：
文献类型：
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作者：
K. Miura;K. Mae;S. Asaoka;Tomonori Yoshimura;K. Hashimoto
为了在温和条件下大幅度提高煤的挥发分和液相产物，开发了一种新的煤闪速热解方法。该方法的基本思想是在快速热解过程中实现供氢溶剂向煤碎片的有效氢转移。为了实现这一点，我们发现，除了溶剂的脱氢速率与煤的初级分解速率的匹配之外，溶剂与煤的官能团之间在分子水平上的接触是必不可少的。通过在100-250 ° C下在加压气氛（1 MPa）下用溶剂溶胀煤来实现分子水平的接触。当两种煤被四氢萘溶胀时，四氢萘通过扩大孔隙而渗透到其分子大小的微孔中
A new coal flash pyrolysis method was developed for drastically increasing the total volatile matter and the liquid products under mild conditions. The original idea of this method lies in the realization of effective hydrogen transfer from the hydrogen donor solvent to the coal fragments during the flash pyrolysis. To realize it, we found the contact at the molecular level between the solvent and the coal functional groups was essential in addition to the matching of the dehydrogenation rate of the solvent and the primary decomposition rate of coal. Contact at the molecular levels was achieved by swelling the coal with solvent at 100-250 o C under a pressurized atmosphere (1 MPa). When two coals were swollen by tetralin, tetralin penetrated into the micropores of its molecular size by enlarging the pores