The objective of the work was investigation of possibility of dual fuelling of CI engine with diesel fuel and ethyl alcohol in order to decrease engine emission and increase its thermal efficiency. Alcohol, which is injected to the engine inlet port evaporates quickly, but doesn't ignite (due to low cetane number). After self-ignition of diesel fuel, ignited alcohol would promote further burnin...

In the present study, the effects of bioethanolunleaded gasoline blends on engine performance were investigated in a spark ignition engine. Fuel containing 100% ethanol (E100), fuel blend containing 40% bioethanol by volume (E40) and 100% unleaded gasoline (E0) were tested and the test results were compared. As the result of the study, it was found that the use of unleaded gasoline and bioethan...

United States: Section 202 of the 2007 Energy Independence and Security Act (EISA) requires 36 billion gallons of renewable fuel by 2022. Of that total, 15 billion gallons may be ‘conventional’, or corn-based ethanol. The renewable fuel standard under EISA includes life cycle GHG reduction performance requirements that include emissions from indirect land change. The US EPA’s notice of proposed...

The rising cost of lead additives and of gasoline, and the falling cost of ethanol and sugarcane, have created favorable economic conditions for fuel-ethanol production. In Africa, where lead additives are still heavily used and where sugarcane production is high, ethanol can be a cheap source of octane. More than enough sugarcane is produced in Africa to replace all the lead used in African ga...

bioethanol made from lignocelluloses biomass resources, provides unique environmental, economic and strategic benefits, when compared to gasoline as automobile fuel. to be able to substitute gasoline by bioethanol, one should over come many obstacles, including the production of furfural and hydroxyl-methyl furfural, which are produced when cellulosic materials are treated in the presence of ac...

DOE technology assessments evaluate use of ethanol as a vehicle fuel Alternative fuels offer the advantages of reduced emissions and petroleum use, but how do you choose among the different fuels? DOE’s David Rodgers finds full-energy-cycle assessments useful. A recent study showed that using ethanol made from corn reduces greenhouse gas emissions by 16-28% and petroleum use by 73-75% as compar...

The state of Ohio established a project to demonstrate the use of ethanol flexible-fuel vehicles (FFV) in their fleet operations. This study includes ten FFVs and three gasoline vehicles operated by five state agencies. The two-year project included data collection on vehicle maintenance and fueling, cost of operation, and fleet management comments. The project also included emissions testing o...

Direct catalytic conversion of ethanol to hydrocarbon blend-stock can increase biofuels use in current vehicles beyond the ethanol blend-wall of 10-15%. Literature reports describe quantitative conversion of ethanol over zeolite catalysts but high C2 hydrocarbon formation renders this approach unsuitable for commercialization. Furthermore, the prior mechanistic studies suggested that ethanol co...

Ethanol is renewable and safe fuel and it is mainly produced based on microbial fermentation. The present study aims to isolate and identify ethanol producing Zymomonas spp. from natural environments with characterization, optimization and evaluation of their ethanol productivity. Samples were screened for ethanol producing bacteria on RM medium. Ethanol producing isolates were selected for cha...

This study investigated the impact of dual-fuel operation using ethanol-blended diesel fuel enriched with hydroxy gas on CRDI engine performance, combustion, and emission characteristics. Neat was used to run engine, along a 20% volume fraction an ethanol-diesel mixture that had been enhanced three distinct streams gas, namely 1, 1.5, 2 LPM. Hydroxy generated by electrolysis technique plate-typ...