A petroleum refining process for breaking down heavy molecules in reduced crudes or other feedstocks. The feedstock is treated in a large vessel at high temperature and pressure in the presence of a catalyst. "Cat" cracking is a development of the older method of thermal cracking, which employs only heat and pressure. Catalytic cracking is generally preferred because it produces less gas and other highly volatile by-products. It produces a motor fuel of higher octane (by up to 15 MON) than the thermal process, and is more efficient in the production of iso-paraffins and aromatics, both of which have desirable anti-knock properties.
breaking up large molecules into smaller ones by using a catalyst at high temperature. (see cracking)
the breaking down of heavy hydrocarbons of crude petroleum using a catalyst of silica or aluminum gel.
a refining process by which certain crude cuts are broken down or "cracked" into simpler hydrocarbon compounds at the molecular level by means of extreme heat, pressure, and exposure to a chemical catalyst. Essentially, the process changes the long-chain hydrocarbon molecules of less valuable crude components into more-valuable shorter-chain compounds. Compare reforming.
Refinery process using a catalyst whereby heavy heavy gas oil is converted to about 50% gasoline and 50% gases and gas oil for recycling.
A refinery process that converts a high–boiling range fraction of petroleum (gas oil) to gasoline, olefin feed for alkylation, distillate, fuel oil and fuel gas by use of a catalyst and heat.
Conversion of high-boiling hydrocarbons into lower-boiling hydrocarbons by a catalyst.
the method for producing gasoline from heavy petroleum distillates. [Generally the catalysts are mixtures of silica and alumina or synthetic conjugates such as the zeolites.
The process of breaking up heavier hydrocarbon molecules into lighter hydrocarbon fractions by using heat and catalysts.
A secondary refinery upgrading process that converts heavy processed feedstocks such as vacuum gas oil into lighter products such as gasoline by passing the feedstock over a heated catalyst in order to break down, or crack, the heavy hydrocarbons into lighter ones.