光皮梾木油热解产物催化加氢制备生物燃料

Bio-hydrocarbon Fuel Preparation from Pyrolysate of Swida wilsoniana Fruit Oil by Catalytic Hydrogenation

以光皮梾木油热解产物为原料,进行催化加氢制备生物燃料的研究,通过单因素试验和响应面试验对催化加氢工艺进行了考察和优化。单因素试验得到较适宜的光皮梾木油热解产物催化加氢制备生物燃料参数:催化剂用量1.0%,反应温度170℃,反应压力2.0 MPa,反应时间150 min,最高转化率达到96.3%。响应面试验获得的优化参数为:催化剂用量1.05%、反应温度173℃、反应压力2.0 MPa,催化转化率最高为98.1%。通过气质分析、元素分析和FT-IR分析发现:加氢后烷烃增加8.15个百分点,氧元素质量分数由10.502%降低至2.392%,生物烃类化合物显著增加,质量分数达95.12%,同时生物燃料中碳链C 3~C 7较加氢反应前增加4.31个百分点,C 8~C 19增加18个百分点,产品结构更加接近现有化石燃料。

The preparation of biofuels by catalytic hydrogenation from the pyrolysis products of Swida wilsoniana oil was studied.The catalytic hydrogenation process was investigated and optimized by single factor test and response surface experiments.The optimum parameters obtained by single factor test were catalyst dosage 1.0%,reaction temperature 170℃,reaction pressure 2.0 MPa,reaction time 150 min and the maximum conversion was 96.3%.The optimal parameters obtained by response surface experiments were catalyst dosage 1.05%,reaction temperature 173℃,reaction pressure 2.0 MPa,and the highest catalytic conversion rate was 98.1%.It was found by GC-MS,elemental analysis and FT-IR that after hydrogenation,alkanes increased by 8.15 percentage points,oxygen content decreased from 10.502%to 2.392%,and biological hydrocarbon compounds increased significantly,with the mass fraction of 95.12%.At the same time,the carbon chain C 3-C 7 in biofuels increased by 4.31 percentage point and C 8-C 19 increased by 18 percentage point compared with that of pyrolysis products.The product structure was closer to the existing fossil fuels.