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Vacuum residue upgrading through hydroprocessing with subcritical water

Paper ID Volume ID Publish Year Pages File Format Full-Text
53794 46984 2016 6 PDF Available
Title
Vacuum residue upgrading through hydroprocessing with subcritical water
Abstract

•Subcritical state water was used for vacuum residue upgrading.•Experiments were performed in the various reaction conditions.•Liquid products were analyzed using EA, NMR and GC SIMDIS.•Liquid product conversions are comparable to that of the hydrogen gas process.

Vacuum residue upgrading reactions were carried out with subcritical water and catalyst. Experiments were performed in the autoclave batch reactor at the various reaction conditions (i.e. temperature change, catalyst amount, reaction time, and water amount). The maximum liquid product conversion was 55.5 wt.% at 400 °C, 50 g of VR, 0.5 g of MoNaph catalyst, 6 h of reaction time, and 20 g of water amount. For evaluation of liquid products, C/H atomic ratio, aromaticity, aromaticity condensation, and boiling point distribution was measured by elemental analysis (EA), 1H nuclear magnetic resonance (1H NMR) and gas chromatography simulated distillation (GC-SIMDIS). Results showed that water converts the vacuum residue to the liquid product, and its conversion yield is comparable to that of the hydrogen gas process. Moreover, synthesized MoS2 nanosheet catalyst was used to compare the liquid product conversion.

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Keywords
Vacuum residue; Subcritical water; Upgrading; Liquid product; Conversion; Hydroprocessing
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Today - Volume 265, 1 May 2016, Pages 118–123
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