US 7,882,646 B2Granted

Process and system for drying and heat treating materials

AssigneeEarthRenew, Inc.

InventorsBrian N. Gorbell, Alvin W. Fedkenheuer, John S. Jonasson, Alexander Starosud

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Abstract

This invention discloses systems and methods for conversion of high moisture waste materials to dry or low moisture products for recycle or reuse. The equipment systems comprise a gas turbine generator unit (preferred heat source), a dryer vessel and a processing unit, wherein the connection between the gas turbine and the dryer vessel directs substantially all the gas turbine exhaust into the dryer vessel and substantially precludes the introduction of air into the dryer vessel and wherein the processing unit forms the dried material from the dryer vessel into granules, pellets or other desired form for the final product. Optionally, the systems and methods further provide for processing ventilation air from manufacturing facilities to reduce emissions therefrom.

Claims12

Dependent claims

A method for reducing atmospheric release of emission gases from a manufacturing operation comprising:

generating a non-gaseous waste material feedstock at an operation that produces operation emission gases;
enclosing at least a portion of the operation that produces the operation emission gases to contain the operation emission gases;
enclosing the non-gaseous waste material feedstock at a storage location to contain vapors generated by the stored non-gaseous waste material feedstock;
directing at least a portion of the operation emission gases to a combustion air intake of a gas turbine, oil or gas burner or a reciprocating engine;
directing at least a portion of the vapors from the storage location to the combustion air intake of the gas turbine, oil or gas burner or reciprocating engine;
directing the non-gaseous waste material feedstock from the storage location to a dryer, wherein the non-gaseous waste material feedstock undergoes no digestion or minimal digestion before being directed to the dryer;
and
directing combustion exhaust gases from the gas turbine, burner or engine directly to the dryer vessel for drying or treating the non-gaseous waste material feedstock, wherein the combustion exhaust gases do not pass through an intermediate heat exchanger before directly contacting the non-gaseous waste material feedstock.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 11/981,395Filed 30 Oct 2007 · division
Priority: 19 Jul 2004
Published: US 2008/0104858 A18 May 2008
Granted: 8 Feb 2011
Term ends: Not estimatedThe source records don’t support an estimate.

Classification11 codes

F26B 23/001
Heating arrangements: using waste heat
F26B 19/005
Machines or apparatus for drying solid materials or objects not covered by groups F26B9/00 - F26B17/00: self-contained mobile devices, e.g. for…
F26B 23/02
Heating arrangements: using combustion heating
F26B 2200/18
Drying processes and machines for solid materials characterised by the specific requirements of the drying goods: sludges, e.g. sewage, waste,…

Family

Application10/895,030Parent of this division · filed 19 Jul 2004
Application11/399,765Parent of this division · filed 7 Apr 2006
US 2008/0104858 A1Pre-grant publication · published 8 May 2008
US 7,487,601 B2Parent of this division
US 7,024,800 B2Parent of this division
US 2006/0010714 A1Published application
US 2006/0254081 A1Published application
US 7,882,646 B2This patent

From the US filing history. Foreign family members aren’t listed.