1
Michael D Durham, David E Hyatt, Robin M Stewart, Richard J Schlager: Mercury removal apparatus and method. ADA Technologies, Sheridan Ross & McIntosh, April 25, 1995: US05409522 (116 worldwide citation)

The present invention discloses an apparatus and process for removing particulate material and mercury-containing compounds from a gas stream. The apparatus includes a particulate removal means to remove the particulate material and a mercury collection means to remove the mercury-containing compoun ...


2
Michael D Durham: Hot-side, single-stage electrostatic precipitator having reduced back corona discharge. ADA Technologies, Sheridan Ross & McIntosh, February 1, 1994: US05282891 (34 worldwide citation)

An improved hot-side electrostatic precipitator is provided which more efficiently removes particulates such as fly ash from gases by substantially decreasing the occurrence of back corona discharge. The improved hot-side electrostatic precipitator is based upon the discovery that back corona discha ...


3
Michael D Durham, Cameron E Martin: Apparatus and process for preparing sorbents for mercury control at the point of use. ADA Environmental Solutions, Sheridan Ross P C, April 22, 2008: US07361209 (32 worldwide citation)

A system for treating a contaminated gas stream is provided that includes a comminution device 204 operable to effect size reduction of a plurality of sorbent particles and form a plurality of comminuted particles, a plurality of nozzles 224 distributed through the gas stream and operable to introdu ...


4
Kenneth E Baldrey, Sharon Sjostrom, Nina Bergan French, Michael D Durham: Additives for mercury oxidation in coal-fired power plants. ADA ES, Sheridan Ross P C, February 28, 2012: US08124036 (25 worldwide citation)

The present invention is directed to an additive, primarily for combustion of low sulfur and high alkali coals, that includes a transition metal to impact positively bottom ash slag and optionally a halogen to effect mercury oxidation and collection in the flue gas.


5
Michael D Durham, Richard J Schlager, Andrew D Sappey, Francis J Sagan, Roger W Marmaro, Kevin G Wilson: Method and apparatus for monitoring mercury emissions. ADA Technologies, Sheridan Ross P C, October 21, 1997: US05679957 (21 worldwide citation)

A mercury monitoring device that continuously monitors the total mercury concentration in a gas. The device uses the same chamber for converting speciated mercury into elemental mercury and for measurement of the mercury in the chamber by radiation absorption techniques. The interior of the chamber ...


6
Kenneth E Baldrey, Sharon Sjostrom, Nina Bergan French, Michael D Durham: Additives for mercury oxidation in coal-fired power plants. ADA ES, Sheridan Ross P C, October 23, 2012: US08293196 (15 worldwide citation)

The present invention is directed to an additive, primarily for combustion of low sulfur and high alkali coals, that includes a transition metal to impact positively bottom ash slag and optionally a halogen to effect mercury oxidation and collection in the flue gas.


7
Michael D Durham, Donald H Stedman, Timothy G Ebner, Mark R Burkhardt: Spectrometer for measuring the concentration of components in a fluid stream and method for using same. ADA Technologies, Sheridan Ross & McIntosh, December 3, 1991: US05070246 (15 worldwide citation)

A device and method for measuring the concentrations of components of a fluid stream. Preferably, the fluid stream is an in situ gas stream, such as a fossil fuel fired flue gas in a smoke stack. The measurements are determined from the intensity of radiation over a selected range of radiation wavel ...


8
Michael D Durham, Francis J Sagan, Mark R Burkhardt: Calibration method and apparatus for measuring the concentration of components in a fluid. ADA Technologies, Sheridan Ross & McIntosh, December 21, 1993: US05272345 (14 worldwide citation)

A calibration method and apparatus for use in measuring the concentrations of components of a fluid is provided. The measurements are determined from the intensity of radiation over a selected range of radiation wavelengths using peak-to-trough calculations. The peak-to-trough calculations are simpl ...


9
Michael D Durham, Stewart G Cramer, Terence Hall: Modified container using inner bag. Northrop Grumman Corporation, Terry J Anderson, Karl J Hoch Jr, February 1, 2000: US06019237 (13 worldwide citation)

In accordance with the present invention, in an aircraft storage container which is used for the transport of cargo items, defines an enclosed interior compartment and includes a hatch for selectively accessing the interior compartment, there is provided an improvement of the aircraft storage contai ...


10
Michael D Durham, Sharon Sjostrom, Kenneth E Baldrey: Method and system for controlling mercury emissions from coal-fired thermal processes. ADA ES, Sheridan Ross P C, July 30, 2013: US08496894 (12 worldwide citation)

The present disclosure is directed to the use of elemental or speciated iodine and bromine to control total mercury emissions.