Performance Evaluation Studies of First- and Second-Stage Hydrocracking Catalysts Using Kuwait Vacuum Gas Oil Feedstocks

In a two-stage hydrocracking process, two types of catalyst are used to remove undesirable contaminants (such as S, N, hydrogenation of aromatic compounds, etc.) and convert the heavy feedstock to lighter products. In the present work, individual set of experiments were conducted to obtain informati...

Full description

Saved in:

Bibliographic Details
Published in:	Petroleum science and technology Vol. 26; no. 1; pp. 50 - 63
Main Authors:	Bahzad, D., Marouf, R., Marafi, A., Togawa, S.
Format:	Journal Article
Language:	English
Published:	Colchester Taylor & Francis Group 01-01-2008 Taylor & Francis
Subjects:	Activation energy Applied sciences Catalysis Catalysts Crude oil, natural gas and petroleum products Energy Exact sciences and technology Feedstock Fuels Gas oil Hydrocracking kinetic parameters Petroleum products, gas and fuels. Motor fuels, lubricants and asphalts Pilot plants Processing of crude oil and oils from shales and tar sands. Processes. Equipment. Refinery and treatment units Reaction kinetics vacuum gas oil Kuwait Performance evaluation Pilot plant Hydrotreating Vacuum gas oil Refinery Hydrogenation Residual oil kinetic parameters Hydrodenitrogenation Hydrocracking Aromatic compound Kinetic parameter Activation energy Catalyst Hydrodesulfurization
Online Access:	Get full text
Tags:	Add Tag No Tags, Be the first to tag this record!

Description
Summary:	In a two-stage hydrocracking process, two types of catalyst are used to remove undesirable contaminants (such as S, N, hydrogenation of aromatic compounds, etc.) and convert the heavy feedstock to lighter products. In the present work, individual set of experiments were conducted to obtain information regarding activity and selectivity with emphasis on the evaluation of kinetic parameters of first- and second-stage commercial catalysts used in hydrocracking process. The performance tests were conducted in a down-flow fixed-bed hydrocracking pilot plant using a single reactor. The hydrotreating type A catalyst and hydrocracking type B catalyst were used individually with typical Kuwaiti refinery feedstocks, namely, hydrotreated vacuum gas oil (HVGO) and unconverted residual oil (UCRO), respectively. The order of reaction in this study shows first-order kinetics for HDS and HDN over CAT-A, and first-order hydrocracking conversion over CAT-B. For CAT-A the activation energies were found for HDS and HDN reactions at 22 and 27.3 kcal/gmole, while for CAT-B activation energies were 27.4 kcal/gmole.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 ObjectType-Article-2 ObjectType-Feature-1
ISSN:	1091-6466 1532-2459
DOI:	10.1080/10916460600705717