Process for high severity catalytic cracking of crude oil

US9290705B2 · kind B2 · utility

Assignee

• SAUDI ARABIAN OIL COMPANY · SA

Inventors

• Abdennour Bourane · Ras Tanura, SA
• Musaed Salem Al-Ghrami · Dammam, SA
• Ibrahim Abba · Dhahran, SA
• Wei Xu · Greenbelt, US
• Kareemuddin Shaik · Dhahran, SA

Key dates

• Filing date: Oct 10, 2013
• Grant date: Mar 22, 2016
• Expiry date: Sep 10, 2034

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10G2300/708
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

In an FCC process and system, a whole crude oil feedstock is directly converted into light olefins and other products. The feed is separated into a high boiling fraction and a low boiling fraction, and each fraction is processed in separate FCC downflow reactors. The catalyst, combined from both downflow reactors, is regenerated in a common vessel. The low carbon content in the catalyst particles from the low boiling fraction downflow reactor is insufficient to provide the necessary heat. By combining catalyst particles from the high boiling fraction having high carbon content helps to provide additional heat for regeneration.