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Fuel properties and emissions of soybean oil esters as diesel fuel
Author(s) -
Chang David Y. Z.,
Van Gerpen Jon H.,
Lee Inmok,
Johnson Lawrence A.,
Hammond Earl G.,
Marley Stephen J.
Publication year - 1996
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02523523
Subject(s) - diesel fuel , cetane number , particulates , turbocharger , diesel engine , carbon monoxide , chemistry , fuel oil , waste management , pulp and paper industry , organic chemistry , biodiesel , engineering , catalysis , mechanical engineering , turbine , automotive engineering
The effects of using blends of methyl and isopropyl esters of soybean oil with No. 2 diesel fuel were studied at several steady‐state operating conditions in a four‐cylinder turbocharged diesel engine. Fuel blends that contained 20, 50, and 70% methyl soyate and 20 and 50% isopropyl soyate were tested. Fuel properties, such as cetane number, also were investigated. Both methyl and isopropyl esters provided significant reductions in particulate emissions compared with No. 2 diesel fuel. A blend of 50% methyl ester and 50% No. 2 diesel fuel provided a reduction of 37% in the carbon portion of the particulates and 25% in the total particulates. The 50% blend of isopropyl ester and 50% No. 2 diesel fuel gave a 55% reduction in carbon and a 28% reduction in total particulate emissions. Emissions of carbon monoxide and unburned hydrocarbons also were reduced significantly. Oxides of nitrogen increased by 12%.