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Optimization of hydrocracker pilot plant operation for Base Oil production

Paper ID Volume ID Publish Year Pages File Format Full-Text
53534 46973 2016 8 PDF Available
Title
Optimization of hydrocracker pilot plant operation for Base Oil production
Abstract

•Hydrocracking pilot test to produce unconverted oil (UCO) for Base Oil feed at various conversion levels.•Optimization of UCO quality at various conversion levels to reach high quality Base Oil with the best yield.•Solvent dewaxing of UCO correlating to the viscosity index of the catalytically dewaxed UCO.

This paper describes the hydrocracker pilot plant operations to produce Un-Converted Oil (UCO) selective for Base Oil production while achieving the middle distillate quality. This test was carried out to optimize feed and product quality for the commercial Base Oil unit to produce high viscosity index (VI) lube oil. The main objective of this experiment was to assess the performance of the hydro-cracking (HC) catalyst at different conversion levels between 50 wt% and 70 wt% and evaluate the quality of the Base Oil (BO) that would be produced in the commercial unit. For the test, fixed bed reactor was packed with commercial HC catalyst with pre-treatment hydro-treating (HT) catalyst upstream. The process parameters and product yields were studied by varying the HC reactor temperature. Then, hydrocracker products i.e. total liquid product (TLP) were collected and distilled into distillates and UCO. Special emphasis was given to the UCO quality with respect to the conversion so that it can produce desired Base Oil grades of Group-II (Gr II) and Group-III (Gr III). The experimental results have shown that it is possible to produce the Base Oil on specifications even at lower conversion up to 50 wt%. Details of hydrocracker pilot plant design, catalyst, operations and study results are discussed.

Graphical abstractPilot plant evaluation of unconverted oil quality to reach Gr II and Gr III Base Oil.Figure optionsDownload full-size imageDownload high-quality image (221 K)Download as PowerPoint slide

Keywords
Hydrocracking; Solvent dewaxing; Hydro-dewaxing; Base Oil; Unconverted oil
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Today - Volume 271, 1 August 2016, Pages 199–206
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us