摘要
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.
作者
张爱华
唐娟
赖鹏英
何怡丹
黎继烈
肖志红
ZHANG Aihua;TANG Juan;LAI Pengying;HE Yidan;LI Jilie;XIAO Zhihong(Central South University of Forestry and Technology,Changsha 410004,China;Hunan Academy of Forestry,Changsha 410004,China)
出处
《林产化学与工业》
EI
CAS
CSCD
北大核心
2020年第5期43-49,共7页
Chemistry and Industry of Forest Products
基金
国家重点研发计划资助项目(2019YFB1504001)
长沙市重大专项资助(KQ1902045)
长株潭国家自主创新示范项目资助(2018XK2005)。
关键词
光皮梾木
响应面法
催化加氢
生物燃料
Ni-ZSM-5
Swida wilsoniana
response surface methodology
catalytic hydrogenation
bio-hydrocarbon fuel
Ni-ZSM-5