Abstract:
A combination slurry hydroconversion, coking and coke gasification process is provided wherein solid fines having an average particle size of less than 10 microns in diameter or the ashes thereof recovered from a gaseous product derived from the coke gasification are used as a catalyst in the hydroconversion stage in combination with a catalyst produced from an oil soluble metal compound in situ in the chargestock of the hydroconversion zone.
Abstract:
A gasoline boiling range hydrocarbon stream obtained by fractionation of overhead vapors from a delayed coker is treated for removal of organic silicon compounds prior to being processed in a desulfurizer and catalytic reformer. The stream is treated by a bed of material such as alumina, activated alumina or spent alumina-based desulfurizer catalyst at elevated temperature to reduce the level of organic silicon compounds. The organic silicon compounds, if not removed, are detrimental to desulfurizer and reformer catalysts. The organic silicon compounds are conventionally added to a delayed coker to control foaming.
Abstract:
Disclosed is a process for rejuvenating and reclaiming useful hydrocarbon oils from contaminated waste oils. The process comprises dehydrating the waste oil and thereafter dissolving the dehydrated oil in a selected amount of isopropanol or N-propanol at a temperature of from 45.degree. C. to 80.degree. C. The undissolved waste matter is separated and the residual oil/solvent fraction is distilled to recover the decontaminated oil and the solvent. The recovered oil can be further clarified by treatment with a bleaching clay or activated carbon at elevated temperatures. The process is more efficient and economic than those known heretofore resulting in high yields of reclaimed oil and more environmentally acceptable waste products.
Abstract:
In producing low sulfur fuel oil by the ebullated bed hydroconversion of petroleum residue, the resulting heavy vacuum bottoms sulfur-containing residue material is utilized to produce hydrogen. The residue material from the hydroconversion operation is gasified to provide a fuel gas, which is then used to fire a steam-methane reformer. The chemical requirements for hydrogen production are met by feeding a portion of light gaseous products from the hydroconversion step to the catalytic side of the steam-methane reformer. A low sulfur fuel oil distillate product is recovered from the reactor effluent streams and can be further hydrotreated as desired. Thus, all hydrogen required in the H-Oil reactor for hydroconversion and desulfurization is ultimately produced from the residual oil feed material, by using the heavy product residue material to produce a fuel gas and converting the light hydrocarbons to hydrogen.
Abstract:
Residual oils are upgraded to lube oil base stocks by a combination process involving deasphalting, solvent extraction and hydrocracking arranged to particularly promote the efficient production of lube oil products.
Abstract:
Upgrading a full boiling range naphtha by the combination of reforming only a low boiling portion of the naphtha followed by contacting the reformate product thereof combined with the high boiling portion of the naphtha over a ZSM-5 type catalyst conversion operation is described.
Abstract:
D R A W I N G WHOLE SOUR CRUDE OIL TOGETHER WITH C5-PLUS LIQUID PRODUCTS FROM A COKER ARE HUDROTREATED PRIOR TO SEPARATION INTO VARIOUS BOILING-RANGE PRODUCTS. THE RESIDUAL MATERIAL FROM THIS DISTILLATION IS COKED TO OBTAIN LOW SULFUR COKE AND LIQUID PRODUCTS OF WHICH THE C5-PLUS PORTION IS RECYCLED TO COMMINGLE WITH THE CRUDE OIL PRIOR TO HYDROTREATING. OPTIONALLY, THE CRUDE OIL MAY BE TOPPED TO REMOVE FRACTIONS BOILING IN THE RANGE OF FROM THE INITIAL BOILING POINT OF THE CRUDE TO ABOUT 400*F., PRIOR TO HYDROTREATING.
Abstract:
A PROCESS FOR PREVARING HIGH V.I. LUBE OILS OF IMPROVED QUALITY COMPRISING SOLVENT EXTRACTING AT LEAST PART OF THE LUBE OIL HYDROCRACKER CHARGE STOCK WITH A SOLVENT HAVING PREFERENTIAL SOLUBILITY FOR AROMATICS, FOR EXAMPLE, FURFURAL; HYDROCRACKING THE RAFFINATE FROM SAID EXTRACTION UNDER CONDITIONS PROVIDING FOR AN INCREASED V.I. OF SAID RAFFINATE. QUALITY IS FURTHER ENHANCED BY SERIALLY EXTRACTING THE HYDROCRACKED PRODUCTS WITH A SOLVENT HAVING PREFERENTIAL SOLUBILITY FOR AROMATICS, SUCH AS FURFURAL, UNDER CONDITIONS PROVIDING FOR HIGHLY SELECTIVE REMOVAL OF COLOR BODIES, COLOR BODY PRECURSORS, U.V. ADSORBING COMPOUNDS AND SLUDGE PRECURSORS. ALTERNATIVELY, THE QUALITY OF THE HYDROCRACKED PRODUCT MAY BE FURTHER ENHANCED BY SELECTIVELY HYDROGENATING SAME AT RELATIVELY SEVERE LUBE HYDROGENATION CONDITIONS WHEREBY COLOR BODIES, COLOR BODY PRECURSORS, U.V. ADSORBING COMPOUNDS AND SLUDGE PRECURSORS ARE MITIGATED. D R A W I N G
Abstract:
The instability of lubricating oils to light and air formed by hydrocracking high boiling fractions is removed by percolating the oil through silica-alumina gels containing a Y-type molecular sieve.
Abstract:
A PROCESS FOR THE PRODUCTION OF ALKYLATED TARS COMPRISING REACTING A LOWER OLEFIN, IN THE PRESENCE OF A SILICAALUMINA OF ZEOLITE TYPE CATALYST, WITH A TAR FRACTION OBTAINED BY THE THERMAL DECOMPOSITION OF A PETROLEUM HYDORCARBON AT 700-2300*C., AND IF DESIRED, FOLLOWING A DESULFURIZATION REACTION.