Issue 4, 2022

Catalytic cracking of acidified oil and modification of pyrolytic oils from soap stock for the production of a high-quality biofuel

Abstract

Soap stocks are by-products obtained during the refining process of vegetable oil, and are mainly feedstocks to produce acidified oil. In this work, an efficient process was developed to convert soap stock into a high-quality biofuel with low impurity content. A combination of acidification and catalytic cracking reactions employed as pretreatment was investigated to decrease the impurity content in the soap stock feedstock for obtaining a value-added biofuel. A high olefin content (approximately 47%) pyrolytic oil was obtained during the pretreatment. For further improvement of the cold flow properties, hydro-isomerization of pyrolytic oil for the formation of iso-alkanes over the Ce–Pt/SAPO-11and Ce–Pt/ZSM-5 catalysts was then carried out. The isomerization reaction temperature could be decreased to 320 °C because of the approximately 47% olefin content. The cold filter plugging point (CFPP) of the resulting product could be obtained at −11 °C, and the sulfur content could be decreased to lower than 10 ppm, which could meet the EN and ASTM specifications.

Graphical abstract: Catalytic cracking of acidified oil and modification of pyrolytic oils from soap stock for the production of a high-quality biofuel

Article information

Article type
Paper
Submitted
20 Nov 2021
Accepted
10 Dec 2021
First published
11 Dec 2021

New J. Chem., 2022,46, 1770-1778

Catalytic cracking of acidified oil and modification of pyrolytic oils from soap stock for the production of a high-quality biofuel

X. Jiang, F. Long, Q. Zhai, J. Zhao, P. Liu and J. Xu, New J. Chem., 2022, 46, 1770 DOI: 10.1039/D1NJ05543G

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements