Phillips Petroleum Company

Richard H Nielsen

George E Hays

Glenn H Dale

Dwight L McKay

Richard K Young

Floyd H Holland

Chester O Bowen

A method for introducing a heavy oil feedstock into a catalytic cracking unit is disclosed which comprises forming the oil feed into a sheet of flowing fluid and breaking down the sheet of oil by mixing the oil with a sheet of atomizing gas flowing normally to the sheet of oil.

Atomizing feed for cracking unit

A mixing chamber for catalyst and oil in a catalytic cracking unit in which atomized oil is introduced preferably axially in a preferably vertically oriented transfer line or riser reactor from an atomization chamber segregated from flow of cracking catalyst. The cracking catalyst flows with a radially inward component to the mouth of the riser from the circumference thereof and mixes with the oil feed.

Catalytic cracking process

Apparatus for feeding a mixture of fluidized solids, such as cracking catalyst, and a fluidized feed material to be contacted therewith, such as a hydrocarbon feedstock to be cracked, into a contacting zone, with associated pressure sensor means and flow controller means operatively connected thereto for automatically reducing a purge fluid flow from 100% to 0% while simultaneously increasing a fluidized feed material flow from 0% to 100%.

Method and apparatus for contacting fluid feed materials with fluidized

The walls surrounding the atomization chamber in a catalytic cracking unit where the cracking catalyst surrounds the atomization chamber are cooled by a flow of cooling fluid and baffles to cause the cooling fluid to flow in generally annular streams with crossflow between the annular streams being in a generally radially inwardly direction.

Catalytic cracking unit

A method of feeding a mixture of fluidized solids, such as cracking catalyst, and a fluidized feed material to be contacted therewith, such as a hydrocarbon feedstock to be cracked, into a contacting zone. In another aspect, method and apparatus useful in starting up a catalytic cracking unit are disclosed.

Method and apparatus for contacting feed materials with fluidized solids

A fluid feeding apparatus and method for feeding a fluid to a point beyond the apparatus, wherein a hollow member is provided having an interior surface which defines a chamber having a first fluid therein. The interior surface tapers toward the chamber axis from an open end of the member to an interior surface boundary axially opposite the open end of the member. A second fluid is injected into the chamber generally toward the opening formed at the open end.

Fluid feed method

A fluid feeding apparatus for feeding a fluid to a point beyond the apparatus, wherein a hollow member is provided having an interior surface which defines a chamber having a first fluid therein. The interior surface tapers toward the chamber axis from an open end of the member to an interior surface boundary axially opposite the open end of the member. A second fluid is injected into the chamber generally toward the opening formed at the open end.

Fluid feed apparatus

The walls surrounding the atomization chamber in a fluidized catalytic cracking unit where the cracking catalyst surrounds the atomization chamber are cooled by a flow of cooling fluid and baffles to cause the cooling fluid to flow in generally annular streams with crossflow between the annular streams being in a generally radially inwardly direction.

A mixing chamber for solids and feed such as in a fluidized catalytic cracking unit in which atomized oil is introduced preferably axially in a preferably vertically oriented transfer line or riser reactor from an atomization chamber segregated from flow of cracking catalyst. The cracking catalyst flows with a radially inward component to the mouth of the riser from the circumference thereof and mixes with the oil feed.

In a hydrocarbon conversion operation employing a fluidized cracking catalyst wherein the cracking catalyst has been passivated to render contaminating metals thereon substantially inactive thus to avoid undesired reactions and wherein the used catalyst is regenerated and the regeneration step yields catalyst fines and a flue gas and the flue gas and fines are separated in at least two stages a first stage yielding coarse fines and a later stage yielding finer fines the step of treating finer fines to render metals thereon non-leachable or having substantially reduced leachability to render the finer fines usable as land fill which comprises treating the finer fines with a tin and/or indium and/or a compound of tin and/or a compound of indium.

Treating cracking catalyst fines containing a passivating material

Used cracking catalyst fines from a cracking process wherein antimony or a compound thereof is used as a metals passivation agent are used as an efficient passivation agent in a cracking process.

Antimony containing fines plus cracking catalyst composition

A method for the simultaneous use of a metals passivation agent and an oxidation promoter in a catalytic cracking system. The oxidation promoter charge is increased an effective amount upon charging the passivation agent at an excessive rate to thereby allow the benefits of both agents to be realized.

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Bartlesville, OK, United States of America

Richard H Nielsen