re emit synonym, re emit definition | Thesaurus. Search also in: Web News Encyclopedia Images. emit. breathe forth, cast out, diffuse, discharge, eject, emanate, exhale, exude, give off, give out, give vent to, issue, radiate, send forth, send out, shed, throw out, transmit, utter, vent. Antonyms. absorb, assimilate, consume, devour, digest, drink in, incorporate, ingest, receive, soak up, suck up, take in.
6 Summary ....................................................................................................................... ............................. 7. 3 EXECUTIVE SUMMARY The concept of fluid catalytic cracking has been around since 1915. It was introduced into the petroleum refining process in 1942.Fluid Catalytic Cracking (FCC) is, arguably, the most important petroleum refining process for converting high molecular weight, high boiling point, molecular chains into useful fuel products and gasses. Summary ....................................................................................................................... ............................. 7. 3 EXECUTIVE SUMMARY The concept of fluid catalytic cracking has been around since 1915. It was introduced into the petroleum refining process in 1942.
The alkane is brought into contact with the catalyst at a temperature of about 500Â°C and moderately low pressures. The zeolites used in catalytic cracking are chosen to give high percentages of hydrocarbons with between 5 and 10 carbon atoms-particularly useful for petrol (gasoline).It also produces high proportions of branched alkanes and aromatic hydrocarbons like benzene.ote: If you are interested in other examples of catalysis in the petrochemical industry, you should follow this link. It will lead you to information on reforming and isomerisation (as well as a repeat of what you have just read about catalytic cracking).