Bioethanol and dimetyl carbonate (DMC) are considered alternative fuels additives to the synthesis compounds used now, since bioethanol is a biofuel dimethyl non-toxic, biodegradable can be produced in cleaner way. In this study, effect of adding ethanol gasoline on volatility was investigated. The main goal research but also, antiknock properties studied. Mixtures with DMC or were prepared dif...

Abstract Reducing the level of pollutant emissions internal combustion engines requires adaptation solutions that improve process in cylinder but those may increase their constructive complexity. For this reason, use hydrogen is an effective solution, both for replacing fossil fuels and reducing concentration emissions. The as additional fuel automotive spark ignition offers possibility obtaini...

BACKGROUND It took over two decades to achieve the removal of leaded gasoline in this country. This was despite international evidence and original research conducted in New Zealand on the harm to child cognitive function and behaviour from lead exposure. OBJECTIVE To identify lessons from the New Zealand experience of removing leaded gasoline that are potentially relevant to the control of o...

Methyl tertiary butyl ether (MTBE) is a synthetic chemical that was historically used as an octane booster additive to gasoline. Increasingly there have been concerns about its toxicity and potential carcinogenicity. Because of these concerns, 18 states regulate MTBE levels in groundwater and 17 have banned its use in gasoline. Because of its chemical characteristics, MTBE contaminated sites ar...

Abstract Total bromine (Br) was investigated in seasonally resolved alpine ice cores covering the 20th century. Results revealed increased Br concentrations summer (from 0.7 ng g −1 late 1940s to 1.6 mid 1970s), followed by a slight decrease 1.25 during last decade of In winter, more moderate increase observed from before 1950 (0.35 ) 1970–2000 period (∼0.50 ). Measurements lead suggest that ∼7...

The advantages and limitations of the U.S. ethanol industry have both become apparent during the current period of high petroleum prices. One advantage is that ethanol is cost-reducing as a gasoline additive and as a gasoline replacement using E85 (motor fuel blends of 85 percent ethanol and just 15 percent gasoline). However, corn supply limits ethanol’s role in energy markets; ethanolbased co...

Ethanol could suddenly become the gasoline additive of choice in America. As policymakers debate the future path of U.S. energy policy, they face added concerns for public safety and America’s growing dependence on foreign oil. The outcome of these debates could spell the end for MTBE (methyl tert i a ry butyl ether) as a fuel additive—and have important implications for the future of the ethan...