Articles tagged with Gasoline
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Researchers are investigating how ethanol content affects exhaust emissions from vehicles meeting current and upcoming emission standards. The study aims to better understand the impact of fuel properties on toxic emissions entering the atmosphere.
A study suggests that diesel cars could warm the climate more over time than gasoline-powered vehicles, even with lower CO2 emissions. This is because soot from diesel engines has a shorter lifetime in the air and warms it more intensely.
A study by Virginia Tech researchers may lead to more effective methods for cleaning up gasoline spills, which can contaminate groundwater. The research focuses on the role of iron reduction and methanogenesis in bioremediation, aiming to improve modeling and cleanup efficiency.
ExxonMobil scientists have developed a novel catalyst and process called SCANfiningTM, effective in reducing cracked naphtha sulfur levels up to 99%. The new process overcomes challenges of traditional methods, which are either too expensive or result in lost octane required for modern engines.
Researchers discovered MTBE in over 70% of gasoline samples across Indiana, Illinois, and Michigan, raising concerns about its impact on drinking water. The widespread presence of the chemical, used as an oxygenate to reduce emissions, is attributed to tankers, storage tanks, and pipelines that carried reformulated gasoline.
A study published in PNAS reveals that lead contamination in San Francisco Bay will continue to affect the environment for decades due to the persistence of contaminated soils and sediments. Researchers found that lead from past gasoline emissions still accounts for most of the lead in water samples, with limited mobility out of the bay.
A new polymer additive, polyisobutylene, may dramatically increase mileage and engine power with less pollution. It can produce a 10 percent increase in horsepower and a 20 percent increase in mileage.
A Purdue University chemist has developed a method that uses high-energy ultraviolet rays to remove the gasoline additive MTBE from contaminated ground water. The technique involves exposing tainted water to UV rays, oxygen, and titanium dioxide, which eventually turns the compound into carbon dioxide.
A new study from the USGS and Oregon Graduate Institute reveals that up to 9,000 community water wells in 31 states may be contaminated with MTBE due to proximity to leaking underground storage tanks. The EPA has announced plans to phase out MTBE use in gasoline, but it will persist in the environment for at least a decade.
A new study estimates that up to 9,000 community water wells in 31 states may be contaminated with methyl tert-butyl ether (MTBE) due to their proximity to leaking underground storage tanks. This could pose a risk to the approximately 90 million people who obtain drinking water from these wells.
A new study by Princeton University researchers shows that switching from leaded to unleaded gasoline can reduce blood lead levels to an average of three micrograms per deciliter, well below the 10 ug/dL threshold considered cause for concern in the US. This reduction is significant, especially in countries still using leaded gasoline.
Chemical engineers at Purdue University have developed a computerized system that mimics evolution to discover new gasoline additives. The system combines and recombines chemical components until the fittest fuel additives emerge, offering improved engine performance by reducing deposits on engine valves.
Researchers have found that incineration of solid waste has been the dominant source of atmospheric lead to the New York City metropolitan area, contradicting current mainstream thinking. The study also suggests that solid waste combustion may contribute to other atmospheric pollutants.
Researchers have developed a new fuel formulation that produces 40-50 percent fewer unburned hydrocarbons and 20 percent less carbon monoxide compared to gasoline. The P-series fuel blend can power flexible fuel cars, offering an alternative to traditional gasoline.
The U.S. Geological Survey detected MTBE in urban stormwater samples from 16 cities, with concentrations below the EPA's health advisory limit. In New England, MTBE was detected in 24% of ground-water samples, also at low levels.