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| Number | Title | Issue Date |
| 5569434 | Hydrocarbon processing apparatus and method Apparatus and methods useful for introducing feedstock to a chemical reactor are disclosed. The methods and apparatus employ a novel baffle system to mitigate the effects of unwanted momentum components transferred to the reactor liquid mass from the intr... | 10/29/1996 |
| 5489375 | Resid hydroprocessing method Hydroconversion processes employing 2,4-heteroatom-substituted-molybdena-3,3-dioxocyclopentane hydro-conversion catalysts are disclosed. In some embodiments, inexpensive bulk catalysts in accordance with the present invention are synthesized from bul... | 02/06/1996 |
| 5446002 | Resid hydroprocessing catalyst 2,4-Heteroatom-substituted-molybdena-3,3-dioxocyclopentane hydro-conversion catalysts are disclosed. In some embodiments, inexpensive bulk catalysts in accordance with the present invention are synthesized from bulk triglyceridic epoxides or fatty acids.... | 08/29/1995 |
| 5443718 | Reduced gas holdup in ebullated reactor A reactor for refining resid includes an elongated vertical vessel containing a bed of catalyst which is expanded or ebullated by a liquid/gas mixture. The mixture rises in an updraft through the bed and then is recirculated with an increased velocity by ... | 08/22/1995 |
| 5388645 | Method for producing methane-containing gaseous mixtures Processes are disclosed for separating an oxygen-containing gas into oxygen-enriched and oxygen-depleted streams. The oxygen-depleted stream is injected into a methane-containing solid carbonaceous subterranean formation to produce a methane-containing ga... | 02/14/1995 |
| 5388641 | Method for reducing the inert gas fraction in methane-containing gaseous mixtures obtained from underground formations A method for reducing the inert gas fraction volume percent present in a methane-containing mixture produced by injecting an inert gas into a solid carbonaceous subterranean formation is disclosed. The method reduces the inert gas fraction by suspending t... | 02/14/1995 |
| 5388640 | Method for producing methane-containing gaseous mixtures A method is disclosed for increasing the production of methane from a solid carbonaceous subterranean formation having a standard initial production rate of a methane-containing gas of X standard cubic feet per unit time. The method comprises the steps of... | 02/14/1995 |
| 5362379 | Open-bottomed cyclone with gas inlet tube and method An open-bottomed cyclone separator with gas inlet tube is disclosed which minimizes the entrainment of separated solids in a process gas entering the separator. In some embodiments, the gas inlet tube directs the process gas into a solids-depleted region ... | 11/08/1994 |
| 5322829 | Resid hydrotreating catalyst and process A catalyst and process are disclosed for upgrading heavy feedstocks such as resid. The catalyst comprises a porous inorganic oxide support having an incremental pore volume maximum at a pore radius greater than 50 Angstroms bearing between 0.1 to 5.0 weig... | 06/21/1994 |
| 5312543 | Resid hydrotreating using solvent extraction and deep vacuum reduction A resid hydrotreating process hydrotreats a resid bottoms fraction from the reduction of crude oil. The hydrotreated bottoms fraction is then subjected to deep vacuum reduction and in some cases deasphalted by solvent extraction to produce an oil suitable... | 05/17/1994 |
| 5308476 | Reduced gas holdup in an ebullated bed reactor A resid refining reactor has an ebullated catalyst bed. Hydrogen gas is released into the catalyst bed at a point which is far enough above a distributor plate at the bottom of the catalyst bed to form a gas updraft in a committed zone through the bed. Th... | 05/03/1994 |
| 5303547 | Emissions control system and method An exhaust gas emissions control system lowers cold-start hydrocarbon emissions by using heat exchange structure to lower the temperature of exhaust gas prior to the exhaust gas passing through a hydrocarbon adsorbent and using the extracted heat to heat ... | 04/19/1994 |
| 5300695 | Process for preparing alcohols A process is provided in which an alcohol having X carbon atoms is reacted over an L-type zeolite catalyst to produce a higher molecular weight alcohol. In some embodiments, a first alcohol having X carbon atoms is condensed with a second alcohol having Y... | 04/05/1994 |
| 5279727 | Open-bottomed cyclone with solids separation tube and method Open-ended cyclone separators are disclosed which employ catalyst separation tubes to prevent separated solids discharged through an open cyclone end from being entrained in a countercurrently moving flow of process gas entering the separator through the ... | 01/18/1994 |
| 5273645 | Manufacture of lubricating oils A method for reducing the pour point of a hydrocarbon feedstock that contains aromatic compounds, sulfur-containing compounds and nitrogen-containing compounds is provided. The method involves solvent extraction and utilizes a catalytic hydrodewaxing zone... | 12/28/1993 |
| 5266189 | Integrated low severity alcohol-base coal liquefaction process An improved, low severity coal liquefaction process is disclosed. In accordance with the process, coal is first decarboxylated and demineralized with hot sulfurous acid. The decarboxylated coal is then liquefied in the presence of an alcohol and an alkali... | 11/30/1993 |
| 5266187 | Method for catalytic cracking with post-cyclone inertial separator A generally closed vapor path catalytic cracking reactor system is disclosed which includes a vented post-cyclone inertial separator. The inertial separator includes first and second conduit-like members and a vent located at the downstream end of the ups... | 11/30/1993 |
