moving-bed catalytic cracking

moving-bed catalytic cracking

[′müv·iŋ ¦bed ‚kad·əl‚id·ik ′krak·iŋ]
(chemical engineering)
Petroleum refining process for cracking (breaking) of long hydrocarbon molecules by use of heat, pressure, and a granular cracking catalyst that is continuously cycled between the reactor vessel and the catalyst regenerator.