Hydroformylation reaction process

US10843992B2 · kind B2 · utility

Assignee

• Dow Technology Investments LLC · US

Inventors

• Michael Becker · Ludwigshafen, DE
• Donald L. Campbell, Jr. · Short Hills, US
• Irvin B. Cox · The Villages, US
• Shankhadeep Das · Houston, US
• Seshadri Kumar · Pune, IN
• Glenn A. Miller · Richmond, US
• Nilesh Dhirajlal Parmar · Sayla, IN
• George R. Phillips · South Charleston, US

Key dates

• Filing date: Jun 19, 2018
• Grant date: Nov 24, 2020
• Expiry date: Jun 19, 2038

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J2219/332
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

In one aspect, a hydroformylation reaction process comprises contacting an olefin, hydrogen, and CO in the presence of a homogeneous catalyst in a cylindrical reactor to provide a reaction fluid, wherein the reactor has a fixed height, and wherein a total mixing energy of at least 0.5 kW/m3 is delivered to the fluid in the reactor; removing a portion of the reaction fluid from the reactor; and returning at least a portion of the removed reaction fluid to the reactor, wherein the returning reaction fluid is introduced in at least two return locations positioned at a height that is less than 80% of the fixed height, wherein the at least two return locations are positioned above a location in the reactor where hydrogen and carbon monoxide are introduced to the reactor, and wherein at least 15% of the mixing energy is provided by the returning reaction fluid.