View in EDS

Co-hydroprocessing gas-oil with residual lipids: effect of residence time and H2/Oil ratio.

Saved in:
Bibliographic Details
Title: Co-hydroprocessing gas-oil with residual lipids: effect of residence time and H2/Oil ratio.
Authors: Dimitriadis, Athanasios1, Bezergianni, Stella1 sbezerg@cperi.certh.gr
Source: Journal of Cleaner Production. Sep2016, Vol. 131, p321-326. 6p.
Subjects: Lipids, Hydrotreating catalysts, Hydrogen, Diesel fuels, Petroleum refineries
Abstract: Co-hydroprocessing of petroleum fractions with residual lipids is a promising technology for hybrid fuels production. The aim of this study is the identification of an effective operating window for co-hydroprocessing of Heavy Atmospheric Gas Oil (HAGO) with Waste Cooking Oil (WCO) within the nominal operating limits of a refinery. In particular, two Liquid Hourly Space Velocities or LHSVs (0.66 and 1 h −1 ) and three hydrogen-to-oil or H 2 /Oil ratios (300, 400 and 500 L H 2 /L feed) were studied for a HAGO/WCO 90/10 V/V blended feedstock over a commercial hydrotreating NiMo/Al 2 O 3 catalyst. The two parameters were evaluated with respect to the attained diesel content and quality of the produced hybrid fuels. All experiments were performed at a constant pressure of 5.6 MPa and temperature of 350 °C. The results have shown that higher LHSV is preferable in terms of the hydrogen consumption affecting the conversion cost. As far as H 2 /Oil is concerned, high H 2 /Oil ratios are more effective, rendering higher conversion, diesel content and heteroatom removal. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Cleaner Production is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
Description
Abstract:Co-hydroprocessing of petroleum fractions with residual lipids is a promising technology for hybrid fuels production. The aim of this study is the identification of an effective operating window for co-hydroprocessing of Heavy Atmospheric Gas Oil (HAGO) with Waste Cooking Oil (WCO) within the nominal operating limits of a refinery. In particular, two Liquid Hourly Space Velocities or LHSVs (0.66 and 1 h −1 ) and three hydrogen-to-oil or H 2 /Oil ratios (300, 400 and 500 L H 2 /L feed) were studied for a HAGO/WCO 90/10 V/V blended feedstock over a commercial hydrotreating NiMo/Al 2 O 3 catalyst. The two parameters were evaluated with respect to the attained diesel content and quality of the produced hybrid fuels. All experiments were performed at a constant pressure of 5.6 MPa and temperature of 350 °C. The results have shown that higher LHSV is preferable in terms of the hydrogen consumption affecting the conversion cost. As far as H 2 /Oil is concerned, high H 2 /Oil ratios are more effective, rendering higher conversion, diesel content and heteroatom removal. [ABSTRACT FROM AUTHOR]
ISSN:09596526
DOI:10.1016/j.jclepro.2016.05.027