heavy petroleum

This is roughly the same as heavy petroleum fuel oils.

A heavy petroleum odor wafted through the air.

The unit converts heavy petroleum oils to lighter stocks for gasoline and other higher valued products.

The other half of current hydrogen production is used to convert heavy petroleum sources into lighter fractions suitable for use as fuels.

Heavier petroleum fuels, such as kerosene, were quite prevalent, as they were used for lighting.

Wabasca is an oil field in a remote area of northern Alberta, where heavy petroleum is produced.

Higher temperatures and longer residence time mean that cocurrent systems can be used to treat soils contaminated with heavier petroleum products.

Injection of heated air also can be used to enhance the volatility of these heavier petroleum products because vapor pressure generally increases with temperature.

Any fuel may be used in a Hoffmann kilns, including gasoline, natural gas, heavy petroleum and wood fuel.

Waterflooding and cyclic steam processes have been used to retrieve some of the heavier petroleum since the early 1960s.

Several oil spills have occurred as a result of the heavy petroleum industry on the south shore of Nueces Bay.

Because almost all petroleum products are biodegradable to a certain degree, these heavier petroleum products may be suitable for removal by bioventing.

It had been designed to spread over landfill ground, decomposing heavy petroleum plastics, until at the twenty-fourth generation the terminator gene kicked in and it died.

The gasification process can produce syngas from a wide variety of carbon-containing feedstocks, such as high-sulfur coal, heavy petroleum residues and biomass.

The first large scale commercial implementation, in the early 1940s, was the fluid catalytic cracking (FCC) process, which converted heavier petroleum cuts into gasoline.

A Hesselman engine is basically a spark-ignition engine, converted to run on heavier petroleum products such as oil, kerosene or diesel oil.

Cocurrent systems are effective for light and heavy petroleum products including No. 6 fuel oil, crude oil, motor oil, and lubricating oil.

Heavy petroleum exploration and extraction activities occur throughout the area, and the region is mined for minerals such as nahcolite and dawsonite.

Hydrogen is used for the creation of ammonia for fertilizer via the Haber process, and converting heavy petroleum sources to lighter fractions via hydrocracking.

When the light oil became too expensive because it was also used by the early automobiles, many plants substituted heavy petroleum oil in the manufacturing process and used coke as the plant's fuel.

As other uses were found for these heavier petroleum byproducts, notably for plastics, the cost of the Bunker C fuel increased until the units became too expensive to operate and they were retired from service by 1969.

A "Plus" variant of the ointment exists that adds the analgesic pramoxine, but uses the cheap, simple, long-lasting, but heavier petroleum jelly base that is common to many OTC topicals.

From the 1960s until the 1990s, significant amounts of naphthalene were also produced from heavy petroleum fractions during petroleum refining, but today petroleum-derived naphthalene represents only a minor component of naphthalene production.

The first commercial use of catalytic cracking occurred in 1915 when Almer M. McAfee of Gulf Refining Company developed a batch process using aluminum chloride (a Friedel Crafts catalyst known since 1877) to catalytically crack heavy petroleum oils.

South Korea's fourth largest automaker, SsangYong Motor, owned by the Chinese automobile manufacturer SAIC (Shanghai Automotive Industry Corporation), is the worst affected company in this crisis as it manufactures mainly heavy petroleum consuming SUVs.