高级检索

    王海奇, 黄胜, 吴诗勇, 钱嘉澍, 吴幼青, 高晋生. 红柳林煤温和液化性能研究[J]. 华东理工大学学报(自然科学版), 2021, 47(2): 163-169. DOI: 10.14135/j.cnki.1006-3080.20191208001
    引用本文: 王海奇, 黄胜, 吴诗勇, 钱嘉澍, 吴幼青, 高晋生. 红柳林煤温和液化性能研究[J]. 华东理工大学学报(自然科学版), 2021, 47(2): 163-169. DOI: 10.14135/j.cnki.1006-3080.20191208001
    WANG Haiqi, HUANG Sheng, WU Shiyong, QIAN Jiashu, WU Youqing, GAO Jinsheng. Hydroliquefaction of Hongliulin Coal under Mild Conditions[J]. Journal of East China University of Science and Technology, 2021, 47(2): 163-169. DOI: 10.14135/j.cnki.1006-3080.20191208001
    Citation: WANG Haiqi, HUANG Sheng, WU Shiyong, QIAN Jiashu, WU Youqing, GAO Jinsheng. Hydroliquefaction of Hongliulin Coal under Mild Conditions[J]. Journal of East China University of Science and Technology, 2021, 47(2): 163-169. DOI: 10.14135/j.cnki.1006-3080.20191208001

    红柳林煤温和液化性能研究

    Hydroliquefaction of Hongliulin Coal under Mild Conditions

    • 摘要: 在相对温和条件下,考察了反应温度、氢气压力、溶剂供氢性能和催化剂对红柳林煤液化性能的影响。结果表明:在370~390 ℃范围内,温度升高的主要作用是促进煤的大分子结构解聚;在390~430 ℃范围内,温度升高的主要作用是促进重质产物二次裂解。此外,在Fe催化剂中加入碱性催化剂之后,Fe催化剂与碱性催化剂之间产生了协同效应,使得煤中大量含氧官能团(如醚键、羰基)水解及煤中大分子结构解聚,因而煤转化率和油产率增加,氢气消耗量增加,水产率降低。

       

      Abstract: The influences of temperature, H2 pressure, hydrogen donating capabilities and catalyst on the hydroliquefaction of Hongliulin coal under mild conditions were investigated in this paper. The results showed that in the range of 370—390 ℃, higher reaction temperature could promote the pyrolysis reaction of coal; while in the range of 390—430 ℃, higher reaction temperature could promote the secondary cracking of heavy products. With the increase of reaction temperature, the reaction pressure should be increased to match the reaction temperature. Moreover, compared to coal liquefaction under mild condition with recycle solvent and Fe catalyst, the effect of Fe catalyst on the liquefaction performance with methylnaphthalene was slight, which could be ascribed to the weak hydrogen transfer ability of methylnaphthalene. Fe catalyst had a little effect on liquefaction performance with tetralin as solvent. It could be due to that tetralin was a good hydrogen donor solvent which dissociated a large amount of activated hydrogen, which could stabilize most of the free radicals produced from Hongliulin coal pyrolysis. Additionally, with the addition of Fe catalyst, the activated hydrogen produced from H2 is more than that needed for Hongliulin coal liquefaction process. Furthermore, the addition of alkali catalyst to Fe catalyst could promote coal conversion, oil production and H2 consumption, while reducing water production. It could be ascribed to the prominent synergistic effect between alkali catalyst and Fe catalyst in Hongliulin coal hydroliquefaction. The synergistic effect could promote the hydrolyzation of oxygen-containing moieties (such as carbonyl groups and ether bonds) and the depolymerization of macromolecular structures.

       

    /

    返回文章
    返回