David G. Alvarez
Engineering at Centurion Ave, Baton Rouge, LA

License number
Louisiana PE.0013884
Issued Date
Sep 18, 1973
Expiration Date
Sep 30, 2016
Category
Civil Engineer
Type
Mechanical Engineer
Address
Address
16416 Centurion Ave, Baton Rouge, LA 70816

Professional information

David Alvarez Photo 1

System And Method For Recovering Volatile Organic Gases Emitted From A Polyethylene Resin Product

US Patent:
5182870, Feb 2, 1993
Filed:
Aug 30, 1990
Appl. No.:
7/575453
Inventors:
Gaylon L. Dighton - Baton Rouge LA
David G. Alvarez - Baton Rouge LA
Assignee:
The Dow Chemical Company - Midland MI
International Classification:
A26B 300
US Classification:
34 26
Abstract:
The invention is a system and method for recovering volatile organic gases emitted by solid pellets of a polyetheylene resin product. In the process for making the resin product, the pellets are sampled for product quality and blended to obtain a more uniform mixture, before being transferred to shipping or storage containers. During this process gas must be purged from the sampler and blender vessels to prevent it from building up to an explosive level. In the purging step, outside air is blown through the blender and sampler vessels to mix with the organic gases therein, and this mixture is passed to a furnace, to provide combustion air for the furnace.