林产化学与工业2017，Vol.37Issue(6)：73-80,8.DOI:10.3969/j.issn.0253-2417.2017.06.010
固体酸催化下玉米芯在近临界甲醇-环己烷中的液化研究
Liquefaction of Corncob with Solid Acid as Catalyst in Near-critical Methanol-cyclohexane
摘要
Abstract
SO2-4 /TiO2-ZrO2 solid acid catalyst was prepared by co-precipitation and impregnation. The catalysts were characterized by Fourier transform infrared spectrometer ( FT-IR ) , energy dispersive X-ray spectrometer ( EDS ) and nitrogen physisorption. The effects of solvent ratio, reaction temperature, reaction time and catalyst dosage on corncob conversion were investigated. The chemical compositions of liquefaction production with and without catalysts were determined by FT-IR and gas chromatography/mass spectrometry(GC-MS). The results indicated that SO2-4 was successfully loaded on the TiO2-ZrO2 and SO2-4 /TiO2-ZrO2 was a mesoporous material. The optimal conditions of liquefaction were 1 g corncob with 4% SO2-4 /TiO2-ZrO2 at 250 ℃ for 1. 5 h when the volume ratio of methanol to cyclohexane was 2 and the solid-liquid ratio of corncob and solution was 1:15 ( g : mL ) , under which the liquefied rate reached the maximum of 76. 67%. The main components of the liquefaction product were phenols and ester compounds.关键词
近临界/甲醇-环己烷/玉米芯/催化液化Key words
near-critical/methanol-cyclohexane/corncob/catalytic liquefaction分类
化学化工引用本文复制引用
潘青青,张军,吴真,李迅,张瑜,王飞..固体酸催化下玉米芯在近临界甲醇-环己烷中的液化研究[J].林产化学与工业,2017,37(6):73-80,8.基金项目
国家重点研发计划(2016YFD0600801) （2016YFD0600801）
