Raymond R Gansley

US Patent:

6550751, Apr 22, 2003

Filed:

Nov 26, 1997

Appl. No.:

08/978991

Inventors:

Gregory Norman Brown - Palmyra PA
Raymond Raulfs Gansley - Lebanon PA
Michael Lyn Mengel - Fredericksburg PA
Eli Gal - Lebanon PA

Assignee:

Marsulex Environmental Technologies Corp. - Lebanon PA

International Classification:

B01F 304

US Classification:

261113, 261117, 96297, 96326

Abstract:

A gas-liquid contactor for removing gases and particulate matter from flue gases produced by processing operations of the type carried out in utility and industrial plants. The contactor is generally an open spray absorber having a spray tower ( ) whose walls ( ) form a passage within the tower ( ). Flue gases are introduced into the tower ( ) so as to flow vertically upward or downward through the passage. Disposed within the passage are heads ( ) for introducing a liquid ( ) into the passage such that the liquid ( ) contacts the flue gases. A portion of the liquid ( ) contacts the wall ( ) of the tower ( ), such that the portion of the liquid ( ) flows downwardly along the wall ( ). The tower ( ) is equipped with a deflecting device ( ) disposed on the wall ( ) for deflecting the portion of the liquid ( ) away from the wall ( ), and thereafter reintroducing the portion of the liquid ( ) into the passage so as to contact the gases flowing through the passage. The deflecting device ( ) is also preferably configured to obstruct the flow of gases along the wall ( ) in order to reduce gas penetration at the wall ( ) and divert the gases toward the center of the passage where more efficient contact with the liquid ( ) is made.

US Patent:

6638342, Oct 28, 2003

Filed:

Nov 28, 2001

Appl. No.:

09/996201

Inventors:

Raymond R. Gansley - Lebanon PA
Michael T. Hammer - Birdsboro PA
Michael L. Mengel - Fredericksburg PA

Assignee:

Marsulex Environmental Technologies - Lebanon PA

International Classification:

B01D 5314

US Classification:

95189, 71 31, 95195, 95205, 95235, 95236, 96234, 42324306

Abstract:

A process and system for producing fertilizers with reduced levels of contaminants, and particularly a flue gas scrubbing process and facility that produce a fertilizer byproduct which is treated to remove heavy metals originally present in the scrubbed flue gas. The process entails contacting a flue gas with a scrubbing solution to remove acidic gases and produce a byproduct containing a fertilizer compound precipitate and dissolved metals and/or metal compounds. A fertilizer solution containing dissolved fertilizer and dissolved metals and/or metal compounds is then produced by adding water to the byproduct, after which the pH of the fertilizer solution is adjusted one or more times with a gaseous and/or liquid alkali to form precipitates of one or more metal species. The precipitates are then removed from the fertilizer solution and the solution dewatered to yield a fertilizer product with lower contaminant levels.

US Patent:

61872784, Feb 13, 2001

Filed:

Sep 8, 1998

Appl. No.:

9/149190

Inventors:

Gregory N. Brown - Palmyra PA
Michael L. Mengel - Fredericksburg PA
Michael T. Hammer - Birdsboro PA
Raymond R. Gansley - Lebanon PA

Assignee:

Marsulex Environmental Technologies, LLC - Lebanon PA

International Classification:

B01D 5350

US Classification:

42324306

Abstract:

A process is provided for removing sulfur dioxide out of gases by feeding the gases into a scrubber, where they are counter-currently contacted with a descending solution containing ammonium hydroxide and ammonium sulfate so that the sulfur dioxide is sorbed into the solution containing ammonium hydroxide and ammonium sulfate and a scrubbed gas is discharged from the scrubber. The sulfur dioxide-loaded solution is collected in a sump at the bottom of the scrubber, where a mixture of ammonia and air is injected into the sulfur dioxide loaded solution so that the ammonia reacts with the sulfur dioxide to produce ammonium sulfite which is (in turn) oxidized by the air into ammonium sulfate. The mixture of air and ammonia is injected into the solution in a direction that is towards the bottom of the sump so that portions of solution containing a higher pH and higher ammonium sulfite levels than the remainder of the solution is avoided, thereby minimizing ammonia slip out of the scrubber.

US Patent:

62773437, Aug 21, 2001

Filed:

Sep 23, 1999

Appl. No.:

9/404563

Inventors:

Raymond R. Gansley - Lebanon PA
Michael L. Mengel - Fredericksburg PA

Assignee:

Marsulex Environmental Technologies, LLC - Lebanon PA

International Classification:

B01D 5340
B01D 5350
B01J 1900

US Classification:

423210

Abstract:

An apparatus and process for removing acidic gases, such as sulfur dioxide, hydrogen chloride and hydrogen fluoride, from flue gases produced by processing operations of the type carried out in utility and industrial plants. The apparatus is generally a gas-liquid contactor whose operation uses an ammonium sulfate-containing scrubbing solution to absorb acidic gases from flue gases, and into which oxygen and ammonia are then injected to react with the absorbed sulfur dioxide to produce ammonium sulfate as a valuable byproduct. The oxygen and ammonia are not introduced together into the scrubbing solution, but instead are introduced sequentially and in a manner so that the oxidation first occurs in a relatively low pH solution as a result of the absorbed acidic gases. The ammonia is then added to the solution in a manner that inhibits or prevents intermixing of the ammonia with the majority of the solution, but is present in the solution when recycled for further absorption of acidic gases. This is accomplished by providing a partition within a vessel containing the scrubbing solution, so that two volumes are defined within the vessel.

US Patent:

20200299156, Sep 24, 2020

Filed:

Mar 22, 2019

Appl. No.:

16/361325

Inventors:

- Schenectady NY, US
Raymond Raulfs Gansley - Knoxville TN, US

International Classification:

C02F 1/52
C02F 1/54
B01D 53/34
B01D 53/50

Abstract:

A method of reducing selenium contamination in a waste water stream is described herein. The method includes channeling a flue gas stream through an absorber, contacting the flue gas stream with an aqueous alkaline-based slurry, such that any selenium byproduct in the flue gas stream forms a selenium compound within the aqueous alkaline-based slurry, controlling oxidation of the selenium compound in the aqueous alkaline-based slurry, and adding a precipitation agent to the aqueous alkaline-based slurry to cause the selenium compound within the aqueous alkaline-based slurry to precipitate.

US Patent:

20190143266, May 16, 2019

Filed:

May 10, 2017

Appl. No.:

16/098270

Inventors:

- Minnetonka MN, US
Raymond Raulfs Gansley - Knoxville TN, US
Joel Alexander Citulski - Oakville, CA

International Classification:

B01D 53/73
B01D 53/50
B01D 53/80
B01D 53/64
C02F 3/28
C02F 1/00
B01D 53/34
C02F 1/74
C02F 1/52

Abstract:

Systems and methods are described for treating flue gas, for example from a coal fired power plant. The systems and methods include control of a wet flue gas desulfurization (WFGD) system to manage sulfite concentration in a slurry produced by the WFGD system. Oxygen is added to the slurry in an amount sufficient to produce a sulfite concentration in the slurry in the range of about 5 to 75 mg/L, an oxidation reduction potential in the range of about 100-250 mV, or both. The systems and methods also include the biological treatment to remove selenium from a liquid fraction of the slurry. The liquid fraction is treated in a biological reactor maintained under anoxic or anaerobic conditions to reduce its selenium concentration.

US Patent:

20180229179, Aug 16, 2018

Filed:

Feb 15, 2017

Appl. No.:

15/433230

Inventors:

- Baden, CH
Raymond Raulfs GANSLEY - Knoxville TN, US

International Classification:

B01D 53/14
B01D 53/50
B01D 53/34
B01J 19/00
B01J 10/00

Abstract:

A system and method of using the system for controlling oxidation of sulfites to reduce total nitrite and nitrate levels in a slurry is disclosed. The system includes a tank having an inlet for receiving a slurry produced in a wet flue gas desulfurization process. The tank also includes an inlet for receiving a gas. The inlet for receiving the gas is operable to disperse at least a portion of the gas received in the tank through at least a portion of the slurry received in the tank. A sensor is configured to measure a sulfite concentration of the slurry received in the tank to obtain a sulfite concentration measurement. In some embodiments, the sensor is a sulfite analyzer. In other embodiments, the sensor is a virtual analyzer. The system also includes a controller. Software executing on the controller generates an electronic signal affecting an adjustment of a flow rate of gas into the slurry in the tank based at least in part on the sulfite concentration/sulfite concentration measurement.

US Patent:

20180056238, Mar 1, 2018

Filed:

Aug 30, 2016

Appl. No.:

15/251027

Inventors:

- Baden, CH
Lars-Erik Johansson - Vaxjo, SE
Raymond RauIfs Gansley - Knoxville TN, US

International Classification:

B01D 53/75
B01D 53/86
B01D 53/50
B01D 53/96

Abstract:

The present application provides an air quality control system for cleaning a flue gas from a fluid catalytic cracking unit. The air quality control system may include a selective catalytic reduction system in communication with the flue gas to remove nitrogen oxides and a wet scrubber positioned downstream of the selective catalytic reduction system and in communication with the flue gas to remove sulfur oxides and particulates.