refining

Much research in the field has focused on refining the process to minimise the harms of screening.

In practice, sustainable fuels are not carbon neutral, because of the energy used in producing, refining and transporting them.

The loss of the Wilmington refinery will consolidate the state’s refining capacity in fewer hands, in what Court said would raise the potential for price-fixing.

With fewer than three weeks until Election Day, Trump is further “refining” his product, making it even more toxic and addictive.

Their flare systems alone are permitted to torch flammable gases and emit tens of thousands of pounds of noxious sulfur dioxide emissions to avoid pent-up pressure during oil refining.