Department of Chemical Engineering for Energy, Key Laboratory of Coal Gasification and Energy Chemical Engineering of Ministry of Education, East China University of Science and Technology, 130 # Meilong Road, Shanghai 200237, PR China.
Department of Chemical Engineering for Energy, Key Laboratory of Coal Gasification and Energy Chemical Engineering of Ministry of Education, East China University of Science and Technology, 130 # Meilong Road, Shanghai 200237, PR China.
Bioresour Technol. 2018 Nov;268:445-453. doi: 10.1016/j.biortech.2018.08.018. Epub 2018 Aug 7.
The hydropyrolysis/co-hydropyrolysis of rice husk (RH) and thermoplastic bituminous coal (BC) was carried out using a fixed-bed reactor to investigate the effects of atmosphere and hydrogen pressure on product distributions. RH produced more carbon oxides, phenolics and acids. BC yielded more methane and BTX (benzene, toluene and xylene) during hydropyrolysis. Compared with hydropyrolysis of RH, the co-hydropyrolysis promoted the higher heating value of gaseous product and the yield of BTX by 19% and 57% respectively, while it reduced the yield of corrosive acids by 89% under 5 MPa H. The yields of methane, BTX and phenolics during co-hydropyrolysis were 1.5, 6.4 and 4.0 times as much as those obtained during co-pyrolysis under 5 MPa. The co-hydropyrolysis reformed the structure of heavy oil/tar, benefiting the development of aromaticity. High hydrogen pressure synergistically reduced yields of char and acids, and enhanced yields of tar and light aromatics via the secondary reactions.
采用固定床反应器研究了稻壳（RH）和热塑性沥青煤（BC）的水热解/共水热解，考察了气氛和氢气压力对产物分布的影响。RH 产生了更多的碳氧化物、酚类和酸。BC 在水热解过程中产生了更多的甲烷和 BTX（苯、甲苯和二甲苯）。与 RH 的水热解相比，共水热解分别将气体产物的高位发热值和 BTX 的产率提高了 19%和 57%，而在 5 MPa H 下，腐蚀性酸的产率降低了 89%。在 5 MPa 下，共水热解过程中甲烷、BTX 和酚类的产率分别是共热解的 1.5、6.4 和 4.0 倍。共水热解改变了重油/焦油的结构，有利于芳香度的发展。高压氢气通过二次反应协同降低了炭和酸的产率，提高了焦油和轻质芳烃的产率。
