Integrated process for gasoline production

US10369556B2 · kind B2 · utility

Assignee

• UOP LLC · US

Inventors

• Tom N. Kalnes · Bourbonnais, US
• Stuart Smith · Lake Zurich, US
• Douglas A. Nafis · Mount Prospect, US
• Alakananda Bhattacharyya · Glen Ellyn, US
• Bryan K. Glover · Algonquin, US
• Susie C. Martins · Carol Stream, US

Key dates

• Filing date: Dec 11, 2014
• Grant date: Aug 6, 2019
• Expiry date: Mar 24, 2035

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10G2400/02
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

An integrated process for gasoline production is described. The process includes introducing a feed comprising n-C5 hydrocarbons into a disproportionation reaction zone in the presence of a disproportionation catalyst to form a disproportionation mixture comprising iso-C4 and C6+ disproportionation products and unreacted n-C5 hydrocarbons. An iso-C4 hydrocarbon stream and an olefin feed are introduced into an alkylation reaction zone in the presence of an alkylation catalyst to produce an alkylation mixture comprising alkylate and unreacted iso-C4 paraffins. The disproportionation mixture and the alkylation mixture are combined, and the combined mixture is separated into at least a stream comprising the alkylate product, an iso-C4 stream, and an unreacted n-C5 hydrocarbon stream. The iso-C4 stream is recycled to the alkylation reaction zone, and the unreacted n-C5 hydrocarbon stream is recycled to the disproportionation reaction zone. The stream comprising the alkylate product is recovered.