Operational optimization of co-processing of heavy oil and bio-oil based on the coordination of desulfurization and deoxygenation

Le Wu, Ting Yan, Qingyu Lei, Shuai Zhang, Yuqi Wang and Lan Zheng

Energy, 2022, vol. 239, issue PE

Abstract: Co-processing of heavy oil and bio-oil in an existing refinery has been proposed to reduce the production cost of bio-fuels by using the existing refinery infrastructures. Considering the high sulfur content in heavy oil and high oxygen content in bio-oil, an operational optimization model integrated impurity distributions of fluid catalytic cracker (FCC) and hydrogenation reaction kinetics of hydrotreating (HDT) unit is built to lower the utility cost of co-processing process based on coordination of desulfurization and deoxygenation. Polynomial fitting is adopted to reduce the non-linearity of kinetics and a solving strategy is proposed to guarantee the accuracy. Results indicate that the total utility cost of the co-processing process reduces by 6.7% by optimizing impurity removal degrees of all units in the co-processing process. The impurity removal of FCC should not be ignored as it can reduce more than 28% impurity of the total impurity from feed oil without consuming hydrogen gas. The advantages of integrating FCC impurity distributions and hydrogenation reaction kinetics into the proposed model are also discussed. It is necessary to integrate FCC and kinetics when optimizing the co-processing process or FCC and HDT units in refinery.

Keywords: Co-processing; Bio-oil; Vacuum gas oil; Hydrogenation reaction kinetics; FCC impurity Distributions (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0360544221028073
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:239:y:2022:i:pe:s0360544221028073

DOI: 10.1016/j.energy.2021.122558

Access Statistics for this article

Energy is currently edited by Henrik Lund and Mark J. Kaiser

More articles in Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().