433 廃食用油原料のメチル、エチルエステル交換油の製造とディーゼル機関への利用に関する研究(エネルギー技術分野における環境関連技術)

概要

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Bio diesel fuel BDF is obtaining recognition in Japan as a renewable fuel which can be used as an alternative fuel without any modifications of diesel engine. We are making and testing BDFs made from an alcohol (methanol or ethanol) and waste edible oils (soybean, rapeseed, palm oils and beef tallow). The test quantities of the four BDFs (methyl and ethyl esters) were processed in a reactor, comparison of each fuel in engine performance and emission tests are reported in present paper. Specific conclusions of our study are ; 1) The four esters all have lower or similar levels of NOx concentration compared to #2 diesel fuel. 2) BDF made from ethanol and beef tallow has higher levels of CO concentration. 3) Bosch smoke degree decreased of 50% for vegetable ethyl ester compared to diesel oil at 75% load. 4) BDFs made from beef tallow and alcohol have proven to be a viable diesel fuel.
2009-07-08