Question

what is thermal cracking and catalytic cracking

Answer 1

Answer:

Thermal cracking, also known as visbreaking, is an older process that capitalizes on heat and pressure to break large hydrocarbon molecules into smaller, light molecules. The more-modern and more-efficient technology is catalytic cracking.

Answer 2

Explanation:

Thermal cracking, also known as visbreaking, is an older process that capitalizes on heat and pressure to break large hydrocarbon molecules into smaller, light molecules. The more-modern and more-efficient technology is catalytic cracking.

Catalytic cracking produces less cracked residuum and more of the useful gas oils (which can be used as hydrocracker feedstocks) than thermal cracking.