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Hace 2 días · Gasoline ( / ˈɡæsəliːn /) or petrol ( / ˈpɛtrəl /) is a petrochemical product characterized as a transparent, yellowish, and flammable liquid normally used as a fuel for spark-ignited internal combustion engines.
Hace 1 hora · Thanks to heavy use of nitrogen fertilizer, tiny organisms that flourish in farm fields emit nitrous oxide, a potent greenhouse gas that can warm the planet more than carbon dioxide and stay in the atmosphere for over a century.
Hace 2 días · Hydrogen production from natural gas and heavier hydrocarbons is achieved by partial oxidation. A fuel-air or fuel-oxygen mixture is partially combusted, resulting in a hydrogen- and carbon monoxide-rich syngas.
Hace 5 días · The EU has pledged to import half of its target of 20 million tonnes of hydrogen used per year by 2030 in order to reduce CO 2 emissions — but shipping H 2 via carriers such as ammonia, methanol, or synthetic natural gas (SNG) could come with far worse environmental impacts compared to domestic production.
Hace 18 horas · The heavy fuel system—reliant on an intricate system of boilers and pipes—has often failed, leaving the carrier limping at reduced speeds, occasionally requiring tugboat escorts.
Hace 1 día · Heavy fuel oil is a residual fuel incurred during the distillation of crude oil. The quality of the residual fuel depends on the quality of the crude oil used in the refinery. A key differentiator of heavy fuel oils is their sulfur content.
Hace 3 días · Respiratory exposure to heavy metals is an important health risk factor; however, the impact of co-exposure to multiple metals on internal exposure and health remains unclear. Here, we evaluated the relationship between exposure to nine metals (K, Ca, Fe, Cr, Mn, Zn, Pb, Se, and Hg) in PM2.5, PM0.25, and urinary metals with health biomarkers, i.e., 8-hydroxy-2′-deoxyguanosine (8-OHdG ...
