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| Number | Title | Issue Date |
| 5171423 | FCU catalyst separation and stripping process A catalytic cracking process is provided for cost effectively separating and stripping hydrocarbon from catalyst while limiting the occurrence of undesired catalytic overcracking and thermal cracking reactions. The process includes the steps of contacting... | 12/15/1992 |
| 5124025 | Process for deasphalting resid, recovering oils, removing fines from decanted oil and apparatus therefor The invention reduces cracking catalyst fines in decanted oil by mixing the decanted oil (DCO) containing cracking catalyst fines with asphaltene and then treating the DCO-asphaltene mixture with a non-aromatic hydrocarbon solvent in an extraction unit or... | 06/23/1992 |
| 5105073 | Credit card reader extender A credit card reader extender comprising an elongate generally rectangular body having a top side, a bottom side, a central portion and two end portions. The central portion has a generally rectangular opening therethrough extending from the bottom side t... | 04/14/1992 |
| 5102565 | Calcium soap thickened steel mill grease A high performance lubricating grease effectively lubricates and protects caster rollers and bearings in steel mills and other metal processing mills. The high performance grease has excellent extreme pressure and antiwear qualities and is economical, non... | 04/07/1992 |
| 5100629 | Ebullated bed grid plate and skirt to prevent flow maldistribution and catalyst attrition An ebullated bed reactor into which is introduced a mixture of a gaseous substance, such as hydrogen-rich gases, and a liquid substance, such as vacuum reduced crude or resid, beneath a grid plate disposed in the reactor. Bubble cap risers extend through ... | 03/31/1992 |
| 5096605 | Aluminum soap thickened steel mill grease A high performance lubricating grease effectively lubricates and protects caster rollers and bearings in steel mills and other metal processing mills. The high performance grease has excellent extreme pressure and antiwear qualities and is economical, non... | 03/17/1992 |
| 5089235 | Catalytic cracking unit with external cyclone and oil quench system Effective quenching is provided in a catalytic cracking unit to increase product yield and decrease thermal cracking. For increased benefits, the quench is injected at special locations. In the illustrated embodiment, the quench is injected into the oil p... | 02/18/1992 |
| 5087427 | Catalytic cracking unit with internal gross cut separator and quench injector Effective quenching is provided in a catalytic cracking unit to increase product yield and decrease thermal cracking. Advantageously, the quench is injected at special locations. In the illustrated embodiment, the quench is injected into the oil product i... | 02/11/1992 |
| 5081039 | Process for making catalyst inventory measurements and control procedure for adding or withdrawing catalyst The inventive procedure more accurately maintains an inventory of a catalyst in an ebullated bed of a reactor in an oil refinery, especially a resid hydrotreating unit. The ebullated catalyst bed has therein three phases (catalyst, oil, gas). A first dens... | 01/14/1992 |
| 5075550 | Infrared detector for hydrogen fluoride gas The infrared dual beam hydrogen fluoride (HF) gas detector comprises a light source for generating a light beam, a reference filter which passes light at a wavelength in the infrared range, such wavelength light being highly not absorbed by HF gas, an HF ... | 12/24/1991 |
| 5043058 | Quenching downstream of an external vapor catalyst separator Effective quenching is provided in a catalytic cracking process to increase product yield and decrease thermal cracking. To this end, the quench is injected at special locations and a special quench is used. In the illustrated embodiment, the quench is in... | 08/27/1991 |
| 5025946 | Anti-theft device for tank openings The anti-theft device for use in a liquid storage tank having an opening in an upper wall of the tank for receiving and mounting an access fill pipe which receives therein a drop tube having an access port. The anti-theft device comprises a mounting ring;... | 06/25/1991 |
| 5015357 | Wax sweating An early meltdown process of wax sweating is provided which enhances the efficiency, quality, product yield, and throughput of wax. In the early meltdown process, slack wax is crystallized. The crystallized was is then sweated while simultaneously drainin... | 05/14/1991 |
| 5013427 | Resid hydrotreating with resins A hydrotreating process if provided in which resid and resins are hydrotreated with hydrogen-rich gases in the presence of a hydrotreating catalyst in an ebullated bed reactor.... | 05/07/1991 |
| 5009770 | Simultaneous upgrading and dedusting of liquid hydrocarbon feedstocks A process of concurrently dedusting and upgrading particulate laden raw, whole retort oil is provided which comprises the steps of: retorting solid hydrocarbon-containing material such as oil shale to liberate an effluent stream of dust laden hydrocarbons... | 04/23/1991 |
| 4990241 | Hydrotreating process to minimize catalyst slumping A hydrotreating process is provided with at least one deflector to minimize catalyst agglomeration and buildup. Preferably, the deflectors comprise an inner annular baffle and an outer annular baffle.... | 02/05/1991 |
| 4986222 | Furnace for oil refineries and petrochemical plants An economical, efficient, compact furnace is provided with horizontal radiant furnace tubes that extend along all the walls of the furnace for uniform heat distribution and load. The furnace is particularly useful in oil refineries and petrochemical plant... | 01/22/1991 |
| 4986923 | Front-wheel drive grease with synergistic sulfate and carbonate additive system A high performance sulfated lubricating grease effectively lubricates front-wheel drive joints as well as other equipment. The lubricating grease has excellent extreme pressure properties and antiwear qualities and is economical, effective, and safe. In o... | 01/22/1991 |
| 4946068 | Fresh catalyst container A specially arranged fresh catalyst container is provided to effectively and efficiently transport store, and dispense fresh catalyst into a resid hydrotreating unit in an oil refinery. The fresh catalyst container is equipped with monorail- and bridge cr... | 08/07/1990 |
| 4940529 | Catalytic cracking with deasphalted oil A process is provided in which solvent-extracted oil or other deasphalted oil derived from hydrotreated resid is catalytically cracked to increase the yield of gasoline and other high value products.... | 07/10/1990 |
| 4929371 | Steel mill grease A high performance lubricating grease effectively lubricates and protects caster rollers and bearings in steel mills and other metal processing mills. The high performance grease has excellent extreme pressure and antiwear qualities and is economical, non... | 05/29/1990 |
| 4902435 | Grease with calcium soap and polyurea thickener A high performance lubricating grease effectively lubricates and greases front-wheel drive joints. The front-wheel drive grease has excellent extreme pressure properties and antiwear qualities and is economical, non-toxic and safe. In one preferred form, ... | 02/20/1990 |
| 4879054 | Process for producing low temperature high performance grease A method is provided for manufacturing a grease that exhibits high performance qualities at extremely cold temperatures and moderately elevated temperatures, as well as under normal operating conditions. In the method, a lithium soap thickener is formed i... | 11/07/1989 |
