Eric Hansen
Addiction Counselor in Shawnee Mission, KS

6672865, Jan 6, 2004

Sep 11, 2001

09/951164

Eric R. Hansen - Shawnee KS
Ralph A. Supelak - Strongsville OH
James R. Tutt - Texarkana TX
Peter F. Way - Boxford MA

Cadence Enviromental Energy, Inc. - Michigan City IN
Ash Grove Cement Company - Overland Park KS

F27B 1500

432 14, 432106, 110246

A method is described for reducing NO emissions and improving energy efficiency during mineral processing in a rotary kiln. The method comprises injection of air with high velocity/high kinetic energy into the kiln to reduce or eliminate stratification of kiln gases. The method can be applied to mix gases in a rotary kiln vessel or in a preheater/precalciner vessel.

5788762, Aug 4, 1998

Jan 27, 1997

8/789019

Gregory S. Barger - Overland Park KS
Eric R. Hansen - Shawnee KS

Ash Grove Cement Company - Overland Park KS

C04B 1100, C04B 1130

106706

Novel cementitious systems comprised of gypsum, calcined clay, and clinker consisting essentially of hydraulic calcium silicates are disclosed which have the following properties: (1) a water demand of less than about 33% nc; (2) one-day strengths of at least about 1000 psi; and (3) low alkali functionality. By increasing the amount of calcined clay, the resulting cementitious system will sequentially gain the following properties: (1) alkali non-reactiveness; (2) alkali resistance; and (3) low chloride permeability. Novel methods of preparing the novel cementitious systems of this invention are also disclosed. The novel methods not only reduce production costs by decreasing fuel and raw material consumption, but they also allow the cement producer to proactively address significant environmental concerns related to the manufacturing process.

2012031, Dec 13, 2012

Jun 10, 2011

13/157996

Eric R. Hansen - Shawnee KS, US
Kenneth J. Derksen - South Bend IN, US
Kevin Blankenship - Dallas TX, US
Walter Parker - Alvarado TX, US
Ralph A. Supelak - Strongsville OH, US
James R. Tutt - Texarkana TX, US

F27B 7/36

432 14

A method of operating a mineral processing kiln includes introducing a quantity of a selective non-catalytic reduction (SNCR) reducing agent into the kiln. The SNCR reducing agent may be a solid, liquid, or a gas. A mineral processing kiln modified for the implementation of SNCR is also disclosed.

4850290, Jul 25, 1989

Nov 23, 1988

7/275402

Michel R. Benoit - Greene RI
Eric R. Hansen - Shawnee KS
Theodore J. Reese - Michigan City IN

Ash Grove Cement Company - Overland Park KS
Cadence Chemical Resources, Inc. - Michigan City IN

F23G 704

110346

A method is described for environmentally sound usage of combustible hazardous waste in an operating rotary kiln. The method is particularly adapted for disposal of solid hazardous wastes, optionally in the form of a blended waste homogenate, packaged in sealable containers. The containers are used as fuel modules and charged into a rotary kiln cylinder where kiln gas temperatures range from about 950. degree. to about 1200. degree. C. to achieve high destruction and removal efficiencies.

5569030, Oct 29, 1996

Oct 31, 1994

8/332459

Eric R. Hansen - Shawnee KS
James R. Tutt - Nash TX

Cadence Environmental Energy, Inc. - Michigan City IN
Ash Grove Cement Company - Overland Park KS

F27B 700

432103

The present invention is directed to a method for controlling the kiln gas stream in a conventional long wet or dry process cement kiln modified for delivery of solid fuel into the calcining zone. Air is injected into the kiln gas stream at a point downstream of the clinkering zone and upstream of the drying zone to promote combustion efficiency downstream of the clinkering zone.

5377603, Jan 3, 1995

Jun 28, 1993

8/084547

Theodore J. Reese - Ft. Myers FL
Eric R. Hansen - Shawnee KS
Michel R. Benoit - Greene RI

Cadence Environmental Energy, Inc. - Michigan City IN
Ash Grove Cement Company - Overland Park KS

F23G 500

110346

A method is described for environmentally sound usage of combustible hazardous waste in an operating rotary kiln. The method is particularly adapted for disposal of solid hazardous wastes, optionally in the form of a blended waste homogenate, packaged in sealable containers. The containers are used as fuel modules and charged into a rotary kiln cylinder where kiln gas temperatures range from about 950. degree. to about 1200. degree. C. to achieve high destruction and removal efficiencies.

5122189, Jun 16, 1992

Apr 13, 1990

7/509378

Hoke M. Garrett - Santa Rosa CA
Eric Hansen - Shawnee KS

Ash Grove Cement Company - Overland Park KS
Cadence Chemical Resources, Inc. - Michigan City IN

C04B 736

106745

Methods are disclosed for the use of inexpensive volatile fuels in the calcining zone of a cement kiln during the manufacture of cement clinker in a rotary vessel.

5724899, Mar 10, 1998

Aug 9, 1994

8/287945

Theodore J. Reese - Ft. Myers FL
Eric R. Hansen - Shawnee KS
Michel R. Benoit - Greene RI

Cadence Environmental Energy, Inc. - Michigan City IN
Ash Grove Cement Company - Overland Park KS

F23G 700

110346

A method and apparatus are described for environmentally sound usage of combustible solid waste in operating rotary cement kilns. A cement kiln is modified to contain a port in the rotary cylinder for delivery of combustible solid waste into the kiln for burning in contact with calcining mineral material. The port is provided with a closure and means for moving the closure between a port-opened and port-closed position at predetermined times during rotation of the kiln cylinder. The invention allows efficient use of solid waste as supplemental fuel in the cement manufacturing process.

5816795, Oct 6, 1998

May 24, 1996

8/653244

Eric R. Hansen - Shawnee KS
Theodore J. Reese - Ft. Myers FL
James R. Tutt - Nash TX

Cadence Environmental Energy, Inc. - Michigan City IN
Ash Grove Cement Company - Overland Park KS

F27B 1500

432 14

A preheater or precalciner kiln is modified to feed solid fuel into a riser duct of the kiln to enable efficient environmentally sound use of solid waste-derived fuel. The modified kiln includes a solid fuel delivery port in the riser duct, a fuel feeder device for feeding solid fuel through the delivery port, and a fuel suspension device for holding the solid fuel for combustion in a fixed position in the kiln gas stream.

2004011, Jun 17, 2004

Nov 21, 2003

10/719423

Eric Hansen - Shawnee KS, US
Ralph Supelak - Strongsville OH, US
James Tutt - Texarkana TX, US
Peter Way - Boxford MA, US

F27B007/06

432/113000

A method is described for reducing NOemissions and improving energy efficiency during mineral processing in a rotary kiln. The method comprises injection of air with high velocity/high kinetic energy into the kiln to reduce or eliminate stratification of kiln gases. The method can be applied to mix gases in a rotary kiln vessel or in a preheater/precalciner vessel.