Hydrotreatment of Cracked Light Gas Oil
作者:
R. Galiasso,
W. Garcia,
M.M. Ramirez de Agudelo,
P. Andreu,
期刊:
Catalysis Reviews
(Taylor Available online 1984)
卷期:
Volume 26,
issue 3-4
页码: 445-480
ISSN:0161-4940
年代: 1984
DOI:10.1080/01614948408064721
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Since worldwide conversion processes are used to upgrade heavy oil to distillates, the hydrotreatment of light gas oil (LGO) as a downstream process has been used more extensively. This fraction (LGO) is produced from thermal or catalytic cracking or hydrocracking processes. It contains high amounts of unsaturates, nitrogen, and sulfur compounds which cause instability while in storage due to gum formation. The use of LGO as a fuel oil for diesel engines plugs the filter and produces sulfur and nitrogen emissions. These sulfur and nitrogen compounds arise from the cracking of heavy cuts and are aromatic-type molecules which are difficult to hydrogenate. This cut also possesses a low cetane index (CI) which must be increased (by aromatic hydrogenation) because of its poor motor performance. Color and color stability are associated with a high bromine number (BN, unsaturated content), nitrogen, and aromatic content. In order to improve these properties, a deep hydrogenation is sometimes required.
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