工程科学学报Issue(9)：1206-1211,6.DOI:10.13374/j.issn2095-9389.2015.09.014
生物质焦油催化裂解过程中二次焦油成分
Secondary tar components in the catalytic cracking process of biomass tar
摘要
Abstract
Catalytic cracking experiments were carried out on biomass tar in a fixed-bed reactor to study the influence of reaction temperature and catalyst type on the cracking reaction product, secondary tar. The experimental results show that there is an aromatic trend in the secondary tar components, and the types and content of polycyclic aromatic hydrocarbons ( PAHs) both increase with the increase of reaction temperature when using the high-alumina brick as an acid catalyst. The rise of reaction temperature can not only improve the deep conversion of biomass tar and reduce the production rate of secondary tar, but also increase the aromatization degree of secondary tar, which is more likely to cause the catalyst deactivation with carbon deposition. When the reaction temperature is 900℃, the secondary tar components are similar with alkaline catalysts (dolomite or limestone), and their types reduce to about 10, which mainly include complex macromolecular hydrocarbon. However, the secondary tar components are still very complex with the high-alumina brick as an acid catalyst, and their types are nearly 30, including not only macromolecular hydrocarbon but also paraffin hydrocarbon and polycyclic aromatic hydrocarbons, in 2-ring, 3-ring and 4-ring.关键词
生物质/焦油/催化裂解/成分/催化剂Key words
biomass/tar/catalytic cracking/components/catalysts分类
化学化工引用本文复制引用
李永玲,吴占松..生物质焦油催化裂解过程中二次焦油成分[J].工程科学学报,2015,(9):1206-1211,6.基金项目
国家自然科学基金资助项目(51306017) （51306017）
国家高技术研究发展计划资助项目(2012AA101802-3) （2012AA101802-3）
中央高校基本科研业务费资助项目(FRF-SD-12-007B) （FRF-SD-12-007B）
