Low shear gas mixer

US8500320B2 · kind B2 · utility

Assignee

• Dow Technology Investments LLC · US

Inventors

• Harvey E. Andresen · Luling, US
• Christopher P. Christenson · Lake Jackson, US
• Charles W. Lipp · Lake Jackson, US
• John R. Mayer · Diemelstraße, US
• Thomas J. Kling · Midland, US
• Victor R. Fey · Southfield, US
• Laurence G. Britton · Charleston, US
• Michael J. Rangitsch · Saginaw, US
• Michael L. Hutchison · Poca, US
• Matthias Schaefer · Philippine, NL

Key dates

• Filing date: Nov 12, 2008
• Grant date: Aug 6, 2013
• Expiry date: Apr 22, 2029

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J2219/0077
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A gas mixer (10) for mixing a first gas stream with a second gas stream includes an impact labyrinth (24) in the first gas stream having structures (25), e.g., corrugated walls, forming a tortuous path through which the first gas stream must pass en route to a mixing point (20) in the gas mixer. The labyrinth fosters ignition of particles entrained in the first gas stream. Elongate, straight pipes (30) receive the first gas stream from the impact labyrinth (24) and carrying the first gas stream to the mixing point (20) the pipes (30) are positioned with a vessel (12) carrying the second gas stream. The pipes (30) have openings which are substantially aligned with the flow direction of the second gas stream at the mixing point (20) thereby introducing the first gas stream into the second gas stream in a low shear manner.