Felix E Spokoyny

6403046, Jun 11, 2002

Oct 5, 2000

09/679685

Felix E. Spokoyny - Newport Coast CA

Hera, LLC

B01D 5354

4232391, 423355, 422172, 422173, 422190

In many situations where the maximum NOx reduction capabilities of conventional SCR systems are not necessary, and alternative SNCR systems may not economically provide desired NOx reduction, a staged SCR/SNCR system is believed to be the most appropriate solution available. By means of the present invention, a system has been developed for delivering NOx reduction agents from a common urea feedstock, when it is appropriate to use combined NOx treatment stages (i. e. SNCR within the boiler followed by in-duct SCR and/or catalyzed air preheater elements). For the SNCR stage, the urea from the common feedstock is diluted prior to injection into the boiler and, for the SCR stage, the urea from the common feedstock is used to produce ammonia using hydrolysis. Urea solution which is not converted to ammonia in the hydrolyzer, is used for dilution of the solution being delivered to the SNCR system. Broadly, the invention herein is applicable to many instances in air pollution control wherein the facility in question requires both gaseous ammonia and urea solution to assist in the control of contaminants at discrete locations in one or more flue gas streams.

6455456, Sep 24, 2002

Nov 28, 2000

09/724162

Felix E. Spokoyny - Newport Coast CA

Hera, LLC - Lake Forest CA

B01J 3734

502 20, 502 5

A method and apparatus for cleaning the catalytically active surfaces of selective catalytic reduction (SCR) substrate, and more particularly such a method and apparatus which: simultaneously generates two differing frequency sound waves which are effective in cleaning such surfaces, more effectively than if only single waves of such frequency were generated; utilizing spaced arrays of sound emitters at the entry and exit sides of selected SCR layers, with the emitters on opposite sides of the layers being in counter phase, or opposed synchronization; teaches design and placement of sound sources which optimize a variety of output cleanability predictions, for example pulsating pressure distribution, pulsating velocity distribution (U, V, W), time-averaged parameters and measure of cleanability.

6616901, Sep 9, 2003

Jun 21, 2000

09/598348

Vincenzo Lagana - Milan, IT
Felix E. Spokoyny - Costa Mesa CA

Hera, LLC - Lake Forest CA

C01C 100

422148, 422188, 422234, 422242

This invention relates to pollution control requirements for fossil fuel burning facilities such as power plants, and, more particularly, to an apparatus for providing a safe and economical supply of ammonia, from a urea feedstock, when ammonia is desired or necessary to initiate, cause and/or supplement the removal of one or more pollutants from an exhaust gas stream.

6620393, Sep 16, 2003

Jul 23, 2001

09/911213

Felix E. Spokoyny - Newport Coast CA

Hera, LLC - Lake Forest CA

C01C 300

423237, 423235, 4232391

A method and apparatus for reducing the amount of unused ammonia (âammonia slipâ) in instances where ammonia is provided to SNCR and/or SCR processes for reducing NOx pollution in flue gas produced by a fossil fuel burning facility. Such a facility incorporates a rotary regenerative heat exchanger (i. e. an air preheater and/or a gas to gas preheater) for absorbing heat from the gas flow on one side of the heat exchanger, and releasing such absorbed heat to heat the gas flow on the other side of the heat exchanger. The invention herein includes absorbent/desorbent media carried by at least some of the elements of the heat exchanger. The media is active to adsorb at least a portion of the ammonia slip after NOx is treated, and before the gas flow is exhausted to the environment, and to desorb essentially an equilibrium portion of such adsorbed ammonia into gas flow upstream from the providing of ammonia for the SNCR/SCR process.

7273595, Sep 25, 2007

Dec 30, 2004

11/027972

Felix E. Spokoyny - Newport Coast CA, US

B01D 53/34
B01D 53/50
B01D 53/56

423210, 423235, 4232391, 42324306, 4232155, 423355, 423DIG 5, 422105, 422110, 422111, 20415742, 20415746

A safe, economical and predictable process for producing ammonia from a urea solution, preferably where only a small amount of ammonia is required, (i. e. for SCR denitrification for small boilers, flue gas conditioning to enhance precipitator efficiency and/or alleviate plume problems, SNCR and the like), using an ultrasonic processor to cause “cold boiling” of portions of such solution and produce gaseous ammonia.

7416715, Aug 26, 2008

Aug 15, 2007

11/893306

Felix E. Spokoyny - Newport Coast CA, US

Hera, LLC - Laguna Hills CA

C01C 1/00
C01C 1/02

423352, 423355, 423356, 20415742, 20415746

A safe, economical and predictable process for producing ammonia from a urea solution, preferably where only a small amount of ammonia is required, (i. e. for SCR denitrification for small boilers, flue gas conditioning to enhance precipitator efficiency and/or alleviate plume problems, SNCR and the like), using an ultrasonic processor to cause “cold boiling” of portions of such solution and produce gaseous ammonia.

20080292511, Nov 27, 2008

Jul 18, 2008

12/218909

Felix E. Spokoyny - Newport Coast CA, US

B01J 19/10

422128

A safe, economical and predictable apparatus for producing ammonia from a urea solution, preferably where only a small amount of ammonia is required, (i.e. for SCR denitrification for small boilers, flue gas conditioning to enhance precipitator efficiency and/or alleviate plume problems, SNCR and the like), using an ultrasonic processor to cause “cold boiling” of portions of such solution and produce gaseous ammonia.

52379396, Aug 24, 1993

Aug 20, 1992

7/933487

Felix E. Spokoyny - Costa Mesa CA
Henry V. Krigmont - Seal Beach CA

Wahlco Environmental Systems, Inc. - Santa Ana CA

F23J 1500

110345

An apparatus for reducing NOx pollution in the flue gas produced by a burner includes a heat exchanger wherein at least some of the heat transfer elements are coated with a catalyst. A plurality of reactive gas injectors are arranged to introduce a nitrogeneous compound, preferably a source of ammonia, across a hot-end face of the heat exchanger. A reactive gas flow distribution system permits the distribution of the nitrogeneous compound flowing through at least some of the gas injectors to be varied responsive to the temperature profile of the heat exchanger. Preferably, the apparatus also determines the total NOx flow in the flue gas, and the reactive gas flow distribution system permits the total amount of reactive gas flowing through at least some of the gas injectors to be varied responsive to the total NOx flow in the flue gas.