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8088705 |
Process for sulfurization or presulfurization of solid particles of a catalyst or an adsorbent
The invention relates to a process for incorporating sulfur in the porosity of the solid particles of a catalyst for the conversion of hydrocarbons or an adsorbent. This process is carried out...
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7915191 |
Three-stage counter-current FCC regenerator
This invention is directed to a method and apparatus for regenerating a catalyst used in an FCC unit, including providing a spent catalyst into an upper portion of a regenerator, maintaining a...
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6133183 |
Process for regenerating a catalyst for the production of aromatic compounds or for reforming, with improved oxychlorination
The invention concerns a process for regenerating a catalyst for the production of aromatic compounds, in particular for reforming, comprising combustion (A), oxychlorination (B) and calcining (C)...
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5858207 |
FCC process with combined regenerator stripper and catalyst blending
An FCC arrangement uses a regenerator stripper vessel for removing CO and light hydrocarbons upstream of the regeneration zone that can operate with backmix addition of regenerated catalyst...
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5124292 |
Process for the regeneration of activated carbon product by reverse burn gasification
Process for the regeneration of an activated carbon or activated coke product comprising loading the activated product into a reaction vessel having two ends, initiating a flame front at one end of...
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5120691 |
Process for regulating or checking the thermal level of a pulverulent solid incorporating a heat exchanger with fluidized bed compartments
A process and apparatus for the heat regulation of fluidized or fluid catalyst beds are described, the apparatus having a fluid bed heat exchanger. According to the invention, a pulverulent solid...
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4991521 |
Fluidized bed combustion process and apparatus
A process and apparatus for fluidized bed combustion using a dense phase combustion zone over a dilute phase combustion zone. When used to regenerate FCC catalyst containing coke with relatively...
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4980325 |
Method of controlling moisture in combustion section of moving bed regeneration process
A method for continuously or semi-continuously regenerating reforming catalyst by the recirculation of a gas stream advantageously controls the water content by using an oxygen-deficient makeup gas...
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4973780 |
Alkylation of benzene in a moving bed
An improved process for the alkylation of benzene in the presence of an alkylation catalyst. The catalyst bed may be caused to move in a direction countercurrent to the movement of the benzene and...
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4859643 |
Regeneration method with reduced catalyst heat exposure
A method for regenerating coke-contaminated catalyst particles achieves better utilization of oxygen and minimizes surface area loss of the catalyst by confining particles in the combustion section...
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4832921 |
Apparatus for regeneration of hydrocarbon conversion catalyst
A vessel for effecting multiple treatment steps needed to regenerate spent hydrocarbon conversion catalyst. Regeneration is accomplished in a moving bed of catalyst, where catalyst is passed...
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4704497 |
Method for dehydrogenating hydrocarbons
A process for dehydrogenating saturated or unsaturated hydrocarbons wherein the flow direction of the oxygen-containing gas, employed for removing coke deposits on the catalyst surface, is opposite...
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4687637 |
Catalyst regeneration apparatus
Apparatus for effecting multiple treatment steps needed to regenerate spent hydrocarbon conversion catalyst. Catalyst is contacted with a hot oxygen-containing gas stream in order to remove coke...
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4647549 |
Regeneration of hydrocarbon conversion catalyst
A vessel for effecting multiple treatment steps needed to regenerate spent hydrocarbon conversion catalyst. Regeneration is accomplished by means of a moving bed of catalyst, where catalyst is...
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4621069 |
Continuous process for catalyst regeneration by staged burnoff of carbon and sulfur compounds
Used catalyst containing carbon and sulfur deposits is continuously regenerated by staged burnoff of the carbon and sulfur using a multiple zone treatment vessel containing thin beds of catalyst....
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RE32239 |
Moving bed catalytic cracking process with platinum group metal or rhenium supported directly on the cracking catalyst
An improved moving bed continuous catalytic cracking process for cracking hydrocarbon feedstocks, such as gas oil, in the absence of added hydrogen, which includes the use of a minute amount of...
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4581339 |
Catalytic dehydrogenation reactor cycle
A method for reheating of a catalytic reactor by successive oxidations and reductions of a multiple oxidation state catalyst.Heat is added to the catalyst bed by a series of successive oxidation...
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4578370 |
Gas circulation method for moving bed catalyst regeneration zones
A method is disclosed for regenerating particulate catalyst used in a hydrocarbon conversion process such as catalytic reforming. The method is especially applicable to moving bed reactor systems....
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4522727 |
Process for continuous removal of ammoniacal nitrogen from aqueous streams
A continuous process for removal of ammoniacal nitrogen from water is disclosed. This process is useful for maintaining water quality in aquaculture operations, e.g., fish hatcheries and the like....
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4388218 |
Regeneration of cracking catalyst in two successive zones
Process and apparatus suitable for the regeneration of catalytic cracking catalyst particles and for the heating and partial conversion of coke particles from a coking process are described. The...
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4313848 |
Method for removing coke from particulate catalyst
Coke is removed from particulate catalyst by passing coke-containing catalyst downwardly through a regenerator without backmixing, in a countercurrent flow with respect to a regeneration gas having...
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4221560 |
Apparatus for regeneration of wet spent active carbon
The present invention provides an apparatus for the regeneration of wet spent active carbon devised so as to bring the active carbon supplied from a hopper into contact with a reaction gas...
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4204979 |
Method of processing activated carbon
A method for processing of sewage sludge from wastewater treating plants and the initial activation and regeneration of activated carbon granules or powder used for adsorption in wastewater...
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4142989 |
Process for continuously regenerating a degraded catalyst used for removing nitrogen oxides from exhaust gas
The present invention relates to a continuous type catalyst regeneration process for continuously heating and regenerating a degraded catalyst from a denitration apparatus and recycling the...
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4115317 |
Method and apparatus for regenerating and manufacturing activated carbon
This invention relates to a system for regenerating and manufacturing activated carbon wherein the exhaust gases and vapors from the upper portion of a multiple hearth furnace are passed to a gas...
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4094817 |
Regeneration method for gravity-flowing deactivated catalyst particles
A continuous method for regenerating deactivated catalyst particles in a regeneration zone through which the particles are downwardly movable by way of gravity-flow. Particles are initially...
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4060395 |
Fluidized cracking catalyst regeneration apparatus
Apparatus for regeneration of spent, coke contaminated fluidized cracking catalyst by burning coke therefrom with a molecular oxygen containing regeneration gas in a fluidized dense phase bed, and...
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4039290 |
Spent activated carbon regenerator
A fluidized bed type spent activated carbon regenerator with an upper drying chamber and a lower reactivating chamber within a column through which spent activated carbon particles are treated in a...
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3153633 |
Method for regeneration of granular activated carbon
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2918436 |
Temperature control of exothermic reactions
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2902438 |
Prevention of plume formation in a gravitating solids-hydrocarbon conversion process
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2893947 |
Hydrocarbon conversion process and apparatus
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2870086 |
Fluid platinum catalyst hydroforming system
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2863824 |
Hydrocarbon conversion processes with recovery of fluorine containing gases
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