A Prediction Model for Dry Sludge Formation in Residue Hydroconversion

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Toru Takatsuka¹  Yoshio Fukui¹  Seiya Hirohama¹  Yukitaka Wada¹ 

[1] Chiyoda Corporation

关键词: Chemical Reaction;    Maximum Conversion;    Dry Sludge;    Residual Oil;    Hydrocracking;    Hydroconversion;    Visbreaking;    Compatibility;    Sedimentation;   

DOI  :  10.1252/jcej.22.298

来源: Maruzen Company Ltd

【 摘 要 】

References(6)Cited-By(7)Among the various residue upgrading processes in use, conventional hydrodesulfurization (HDS) units operated at elevated temperatures are widely employed for cracking of inferior crudes with a high metal content, such as Middle East or South American crude. Such a high-temperature operation results in inducing dry sludge formation in product oil and maximum conversion is regulated by that limitation. With a combination of hydrovisbreaking and hydroconversion by asphaltene bottom cracking (ABC) catalyst the maximum conversion was improved by as much as 15% for inferior crudes. The advantage of the higher conversion was proved by characterizing the reaction mechanism in the process. And, the reaction mechanism model and prediction model for compatibility of product oil proposed for the prediction of maximum conversion will also be a tool for optimizing various types of residual hydroconversion processes.

【 授权许可】

Unknown