John J. Mooney

Sections should be added to this article or its part, to conform with Wikipedia's Manual of Style. Please discuss this issue on the talk page. (November 2008)

John J. Mooney (born c. 1929) is an American chemical engineer who was co-inventor of the three-way catalytic converter, which has played a dramatic role in reducing pollution from motor vehicles since their introduction in the mid-1970s.

Mooney grew up in Paterson, New Jersey, where he attended St. Georges Grammar School and then St. Joseph's High School, graduating in 1947.^[1] after graduating from high school, Mooney spent ten years working for the Public Service Electric and Gas Company (PSE&G).^[2] He attended Seton Hall University, where he completed his Bachelor of Science degree in 1955.^[1]

While serving in the United States Army from 1955 to 1956, Mooney was assigned to a series of nuclear tests in the Pacific Ocean at Eniwetak Atoll in the Marshall Islands, which included 17 atom bomb and two hydrogen bomb tests. Mooney was as close as 7½ miles from fission bomb tests. For the two hydrogen bomb tests at Bikini Atoll, he was 175 miles away, and described the five minutes of intense light from their explosion, much longer than the 30 seconds of brightness from atomic bombs.^[1]

He attended the Newark College of Engineering (now the New Jersey Institute of Technology, where he earned a Master of Science in Chemical Engineering in 1960. Mooney was awarded an MBA in marketing from Fairleigh Dickinson University in 1992.^[1]

Mooney came to Engelhard in 1960 as a result of a connection made in an electrochemical engineering course and was hired at the company's Gas Equipment Division, where I saw a perfect fit. Among his first tasks there were purification of hydrogen purification and catalysis of ammonia into hydrogen and nitrogen.^[1] By generating hydrogen from ammonia using a ruthenium catalyst, the United States Air Force was able to supply the gas for weather balloons in distant locations by shipping ammonia, rather than the more volatile hydrogen gas.^[2]

The 1970 amendments to the Clean Air Act required significant reductions in hydrocarbon, carbon monoxide and nitrogen oxide emissions. The converters available at the time were oxidation catalysts, which could handle hydrocarbon and carbon monoxide, but were ineffective in reducing nitrogen oxides. Car manufacturers and catalyst companies were trying to develop a multiple step process that would address hydrocarbons and carbon monoxide in one process while reducing nitrogen oxides in another.^[1]

The three-way catalyst developed by chemist Carl D. Keith and Mooney with their team at Englehard allowed all three exhaust pollutants to be remediated using a single catalyst bed. Their solution to addressing the variations in air / fuel mixtures was was to combine rare earth oxides and base metal oxide components in the catalyst together with Platinum and Rhodium in a ceramic honeycomb with tiny passages coated with the catalytic material. This design ensured that the oxygen needed in the reactions was absorbed up when it was in excess and released when it was needed, allowing all three pollutants to be removed in a single catalytic component. The three-way catalytic converter reduces nitrogen oxides to nitrogen and oxygen, oxidizes carbon monoxide to carbon dioxide and oxidizes unburnt hydrocarbons to carbon dioxide and water.^[1]

In 2001, Keith and Mooney received the Walter Ahlstrom Prize, awarded in conjunction with the Finnish Academies of Technology, for their work in inventing and commercializing the three-way catalytic converter. Estimates were that by the time the award was received, the converters developed by Keith were installed in 80% of new cars manufactured worldwide and had prevented 56 million tons of hydrocarbons, 118 million tons of nitrogen oxides and 464 billion tons of carbon monoxide from being emitted as pollution in the 25 years since their introduction.^[3]

Among the 17 patents he has been awarded, one of his most recent was for a catalytic converter for the small two-stroke engines, used in chainsaws, lawn mowers and leaf blowers. His invention reduced hydrocarbon emissions by as much as 70%, improved fuel efficiency and added up to 40% more power, while addressing the pollution of an engine that often produces large amounts of pollution due to the lubricating oil mixed with the fuel.^[2]

He retired from Engelhard in 2003, having spent 43 years working for the firm.^[2]

Together with Keith, Mooney was honored by the United States Patent and Trademark Office with the 2002 National Medal of Technology, awarded "For the invention, application to automobiles, and commercialization of the three-way catalytic converter. Through their persistent efforts, this technology is the key emission-control component in all new light-duty vehicles in the United States and throughout the world."^[4]

As President of the Environmental and Energy Technology and Policy Institute, Mooney has worked with the Partnership for Clean Fuels and Vehicles of the United Nations Environment Programme to help end the use of leaded gasoline throughout the world. As of 2002, there were 51 countries in Sub-Saharan Africa in which leaded gasoline was still in use.^[5] By responding to issues of valve seat recession, and showing that lead in gasoline did not help solve the problem, Mooney was part of an effort that had 50 of these 51 countries in Africa ban leaded gasoline by the end of 2006.^[6][1]

Mooney has been a resident of Wyckoff, New Jersey.^[2]