Abstract: This development proposed adding a catalyst to an oxygen stripper. The oxygen stripper would be run at a temperature just below or at coking temp. The oxygen stripper includes a catalyst containing Group VI or VII metals to remove free radicals. Most preferably, the catalyst is a nickel-molybdenum catalyst.

Abstract: This development proposed adding a catalyst to an oxygen stripper. The oxygen stripper would be run at a temperature just below or at coking temp. The oxygen stripper includes a catalyst containing Group VI or VII metals to remove free radicals. Most preferably, the catalyst is a nickel-molybdenum catalyst.

Abstract: In a hydrocracking process, the hydrocarbon feed is processed by a guard reactor operating at maximum severity temperatures. The processing in the guard reactor maximizes the removal of metals and performs hydroenitrogenation steps and hydrodesulfurization steps. The demetallized and partially desulfurized and denitrogenized hydrocarbon feed is then sent to a treating reactor for further hydrodenitrogenization and hydrodesulfurization before being sent further down stream for further hydrocracking processing.

Abstract: The present invention relates to quenching, during hydroprocessing of a hydrocarbon feed stream. More particularly, the present invention provides for quenching in hydroprocessing of a hydrocarbon feed stream through a hydroprocessing vessel. Liquid quenches (from high pressure hot separator) were installed to assist in cooling the reactor inter-bed, and to maintain good liquid irrigation of the catalyst. The soluble hydrogen in the stream, kinetically active and available for immediate reaction, is the final piece of the puzzle for why this unit runs so well.

Abstract: The present invention relates to quenching, during hydroprocessing of a hydrocarbon feed stream. More particularly, the present invention provides for quenching in hydroprocessing of a hydrocarbon feed stream through a hydroprocessing vessel. Liquid quenches (from high pressure hot separator) were installed to assist in cooling the reactor inter-bed, and to maintain good liquid irrigation of the catalyst. The soluble hydrogen in the stream, kinetically active and available for immediate reaction, is the final piece of the puzzle for why this unit runs so well.

Abstract: This unique process is a feed forward control of hydroprocessing by on-line sulfur speciation. An on-line gas analyzer such as (GC) with a sulfur specific detector (AED) would be installed to analyze the feed to a hydrotreating unit. The analyzer would be calibrated to quantify the individual sulfur compounds or classes of sulfur compounds present in the feed. The output from the analyzer would be linked to the unit's distributed control system to automatically change temperatures and feed rates to change hydrotreating severity. This invention could bring economical benefits by increasing the life of the hydrotreating catalyst, reducing operating cost, and decreasing the potential amount of offspec product. In one embodiment, the hydrotreating is a hydrodesulphurization process.

Abstract: The present invention provides a way to process heavier hydrocarbons in a relatively low cost and low pressure process using a combination of superheated steam and at least one reaction gas to i) promote oxidation and thermal reaction of heavier hydrocarbons, while simultaneously ii) removing volatile components with a steam stripping process.

Abstract: The present invention provides a way to increase the softening point of heavier hydrocarbons in a relatively low cost and low pressure process using superheated steam to i) increase the carbon yield of the heavier hydrocarbons, while simultaneously ii) removing volatile components with a steam stripping process.

Abstract: A continuous, hot vapor injection process and apparatus is provided for recovering lube oil base stocks from used lubricating oil containing distillable liquid hydrocarbons and water. Also disclosed is an asphalt blend composition containing an asphalt component and the bottoms from the above process.

Abstract: Used Motor Oil is re-refined by direct injection of a superheated, non-hydrogenating recycle vapor. The process operates at low pressures, preferably from atmospheric—10 atmospheres absolute. Preferably a significant amount of the energy required to vapor used motor oil is supplied in the form of increased sensible heat of a recycle vapor stream. Direct injection of superheated vapor reduces or eliminates fouling which can occur when indirect heat exchange is used to supply the heat needed to vaporize used motor oil.

Abstract: A process for the direct contact heating and vaporization of UMO is disclosed. A superheated, but condensable, vapor heats and vaporizes distillable liquid hydrocarbons from a waste motor oil stream, producing an overhead vapor fraction of injected superheated vapor and vaporized boiling range components. This material is cooled and partially condensed to produce lube boiling range liquid hydrocarbons and a vapor phase, which is condensed to produce a recycle liquid phase. Recycle liquid is pumped and then heated to produce superheated vapor for recycle to contact the UMO.

Abstract: An asphalt blend composition containing an asphalt component and a bottoms fraction from a used motor vaporization process of the above process, and a pavement composition comprising aggregate and the asphalt blend composition. The process comprises directly contacting used lubricating oil with a heated vapor, e.g., steam, under conditions which at least partially decompose the organo-metallic component and provide a desired volume of pumpable bottoms containing organo-metallic compound decomposition products and an overhead comprising gases and distillatable hydrocarbons, with no substantial carryover of metals into the overhead. The process may be carried out under conditions which minimize decomposition of high molecular weight additives such as VI improvers.

Abstract: A process for use of magnetic separation to remove non-magnetic particles from FCC catalyst is disclosed. A stream of circulating catalyst from a fluidized catalytic cracking (FCC) unit is charged to a magnetic separator. The catalyst is magnetically fractionated into at least three fractions, a high-metals fraction which is discarded, an intermediate-metals content fraction which is directly recycled to the FCC unit, and an inert, relatively magnetic metals-free fraction which is also discarded. Preferably, the high-metals fraction is immediately mixed with the inert, low-metals fraction, and the combined high-metals/inert fraction is pneumatically transmitted together to a spent catalyst storage facility for disposal.

Abstract: A process is provided for recovering lube oil base stocks from used lubricating oil formulations containing base oil stock and organo-metallic component which obviates preseparation of water and light hydrocarbons contaminants. The process comprises directly contacting used lubricating oil with a heated vapor, e.g., steam, under conditions which at least partially decompose the organo-metallic component and provide a desired volume of pumpable bottoms containing organo-metallic compound decomposition products and an overhead comprising gases and distillatable hydrocarbons, with no substantial carryover of metals into the overhead. The process may be carried out under conditions which minimize decomposition of high molecular weight additives such as VI improvers, to provide a bottoms fraction which may be added to asphalt or fuel oil.

Abstract: An asphalt composition is provided which contains i) an asphalt component containing solvent-deasphalted bottoms, ii) a rerefined lube bottoms fraction, iii) an optional fluxing component, and iv) an optional vacuum bottoms component. The invention further relates to a method of preparing the asphalt composition and a paving composition containing same.

Abstract: Circulating equilibrium catalyst (ECAT) in a fluidized catalytic cracking (FCC) is gently attrited in an internal or closely coupled attriter to produce fines and attrited catalyst which is recycled to the FCC unit for fines removal. Average particle size of the circulating ECAT is slightly reduced coupled with some fines formation, improving fluidization. Some metals removal is possible as metals tend to accumulate on the surface of the ECAT. The existing fines removal equipment in the FCC is used to remove produced fines, though operating conditions may be altered to reduce particulates emissions during periods of catalyst attrition. A dual orifice plate attriter closely coupled with and discharging into the FCC regenerator is preferred, but a high velocity gas jet within the FCC regenerator may also be used. The process operates without a magnetic catalyst separation unit.

Abstract: A startup method for a fluidized catalytic cracking (FCC) unit operating with a magnetic catalyst separation means is disclosed. Magnetic strength, or separation severity, is maintained or increased until most of the catalyst has passed through the magnetic separation unit. After this point, magnetic flux and/or centrifugal forces, are decreased for lined-out operation. Preferably a MagnaCat.RTM. catalyst separation unit is used for magnetic fractionation of catalyst.

Abstract: A process and apparatus for incorporating additives into a circulating inventory of equilibrium catalyst in a fluid catalyst cracking (FCC) unit are disclosed. Hot regenerated catalyst is removed from the FCC regenerator, cooled, optionally subjected to magnetic catalyst separation, and at least a portion of the cooled catalyst is contacted with a solution of an additive material without forming a separated liquid phase. Additive treated catalyst is recycled to the FCC unit, preferably directly into the regenerator.

Abstract: A process for metals passivation of metals-contaminated equilibrium catalyst (ECat) used in a fluidized catalytic cracking (FCC) process is disclosed. Repeated treatment of a slip stream of ECat in a high-strength magnetic field, preferably a magnetic catalyst separator, changes the properties of the ECat, promoting growth of relatively large crystals or deposits of metal deposits on ECat which are less catalytically poisonous. Magnetic conditioning permits an increase in metals levels on ECat from, e.g., 3000 to 4000 ppm, without increasing hydrogen and/or coke make. Metals passivation by magnetic conditioning can also be used to concentrate feed metals on the oldest catalyst in the unit. This allows magnetic separation of the oldest catalyst in the unit after 1-6 months of magnetic conditioning, even though feed metals levels are otherwise insufficient to permit effective magnetic catalyst separation.

Abstract: Optimized utilization of combinations of fluid catalyst magnetic separator, classifier, and/or attriter can be used to achieve lower catalyst cost, and better catalyst activity and selectivity through control of metal-on-catalyst, particle size and particle size distribution. This process is especially useful when processing high metal-containing feedstocks. This provides a catalyst recovery unit (RCU.TM.) ancillary to an FCC or similar unit.