Development of Gasoline Detergent Additive
As a result of continued study by the industry and customer issues with vehicles, in 1997, the US EPA implemented 40 CFR 80.161- Detergent additive
certification program, which mandates that the additives must be certified for use in the fuel, and that there must be a certain concentration, the lowest additive concentration (LAC), that meets the performance requirement for that fuel.
Those requirements include such things as a Clean Air Act waiver; registration of the fuel with EPA; changes to EPA reformulated gasoline regulations; and changes to EPA gasoline detergent additive
Professor Boehman concedes that "the detergent additive
may have such beneficial effects on engine operation, fuel system performance and other related features of engine system operation that they outweigh the adverse effect" of increased NOx emissions.
The stretched film material is of a non-uniform thickness varying from about 20 microns to about 40 microns, It also contains a disintegrating aid in the film material which has an effervescent source that includes an organic acid and a carbonate source; a detergent additive
in the film material; and a detergent composition in the compartment.
Peter Bryant of Warwick International with the Chemical Industries Association's environmental award and Warwick's product - washing detergent additive
With its famous logo spread from coast to coast and in the other parts of the US through its 14,000 locations in 48 states, Citgo markets several different octane grades of gasoline, complete with its proprietary "high performance" detergent additive
, "to satisfy the needs of a wide range of vehicles and operating conditions".
With all aqueous wash tanks a detergent additive
is essential to ensure effective removal of contaminants.
Warwick's Mostyn site manufactures washing detergent additive
for many of the world's leading brands of washing powder and dishwasher tablets, and Warwick has been a customer of Equest for several years.
Ether derived from tetrahydrofuranylmethanol or polytetrahydrofuran is also a petrol detergent additive
The Kingsport, Tenn., company said it was necessary to cut jobs because its contract to produce a detergent additive
for Procter & Gamble wasn't renewed.