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Howard S. Lacheen, Richmond US

Howard S. Lacheen, Richmond, CA US

Patent application numberDescriptionPublished
20090163349REMOVAL OF EXCESS METAL HALIDES FROM REGENERATED IONIC LIQUID CATALYSTS - A process for removing metal halides from regenerated ionic liquid catalyst comprising interacting a regenerated ammonium-based metal-halide ionic liquid catalyst or an ammonium-based metal-halide ionic liquid catalyst undergoing regeneration with either the parent ammonium halide salt from which the ionic liquid catalyst was made or a corresponding mixed salt having an ammonium halide to metal halide molar ratio of 0 to less than 2.0 is disclosed.06-25-2009
20100065476PROCESS FOR MEASURING AND ADJUSTING HALIDE IN A REACTOR - A process comprising: a) taking a sample from a continuous reactor process, b)measuring a content of a halide in the sample, and c) in response to the measured content of the halide, adjusting a flow of a halide containing additive comprising the halide to control the process. Also, an apparatus comprising: a) a reactor holding an ionic liquid catalyst and a reactant mixture, b) a means for measuring levels of a halide in an effluent from the reactor, and c) a control system that receives a signal in response to the measuring and communicates changes in an operating condition that influences the yield of a product in the reactant mixture.03-18-2010
20100152027IONIC LIQUID CATALYST HAVING A HIGH MOLAR RATIO OF ALUMINUM TO NITROGEN - An ionic liquid catalyst is provided comprising an ammonium chloroaluminate salt, and having a molar ratio of Al to N greater than 2.0 when held at a temperature at or below 25° C. for at least two hours. There is also provided an ionic liquid catalyst comprising an alkyl-pyridinium haloaluminate and an impurity, wherein the ionic liquid catalyst has a molar ratio of Al to N greater than 2.0 when held at a temperature at or below 25° C. for at least two hours. In a third embodiment, there is provided an ionic liquid system for isoparaffin/olefin alkylation, comprising a quaternary ammonium chloroaluminate, a conjunct polymer, and a hydrogen chloride. The ionic liquid system has a molar ratio of Al to N from 2.1 to 8.0. Less than 0.1 wt % AlCl06-17-2010
20100152506PROCESS FOR HYDROCARBON CONVERSION USING, A METHOD TO MAKE, AND COMPOSITIONS OF, AN ACID CATALYST - A process for hydrocarbon conversion, comprising: contacting a hydrocarbon with an acid catalyst containing greater than 15 wt % conjunct polymer. The acid catalyst has a molar ratio of Al to a heteroatom selected from the group of N, P, O, S, and combinations thereof greater than 2.0. The hydrocarbon is converted during the contacting. Also a method to make a catalyst having greater than 15 wt % conjunct polymer and a high molar ratio of Al to the heteroatom, wherein an acidic ionic liquid catalyst is made that is effective for catalyzing a reaction. There are also provided catalyst compositions having greater than 15 wt % conjunct polymer.06-17-2010
20100152518PROCESS TO MAKE A LIQUID CATALYST HAVING A HIGH MOLAR RATIO OF ALUMINUM TO NITROGEN - A process to make a liquid catalyst having a molar ratio of Al to N greater than 2.0, comprising: a) using an ammonium-based ionic liquid catalyst to catalyze a reaction, wherein the ammonium-based ionic liquid catalyst builds up an impurity during the reaction; and b) mixing the ammonium-based ionic liquid catalyst, having an impurity, with aluminum. There is also provided a process for isoparaffin/olefin alkylation, wherein the ionic liquid catalyst comprises a quaternary ammonium ionic liquid salt; and wherein the ionic liquid catalyst has a molar ratio of Al to N greater than 2.0 when held at a temperature at or below 25° C. for at least two hours. There is also provided a method for making a catalyst having a molar ratio of Al to N greater than 2.0, and a process for hydroconversion comprising maintaining a level of conjunct polymer in an ionic liquid catalyst.06-17-2010
20100158762IONIC LIQUID SYSTEM FOR AN ISOPARAFFIN/OLEFIN ALKYLATION - There is provided an ionic liquid system for isoparaffin/olefin alkylation, comprising a quaternary ammonium chloroaluminate, a conjunct polymer, and a hydrogen chloride. The ionic liquid system has a molar ratio of Al to N from 2.1 to 8.0. Less than 0.1 wt % AlCl06-24-2010
20100167916IONIC LIQUID CATALYST COMPRISING AN ALKYL-PYRIDINIUM HALOALUMINATE AND AN IMPURITY - There is provided an ionic liquid catalyst comprising an alkyl-pyridinium haloaluminate and an impurity, wherein the ionic liquid catalyst has a molar ratio of Al to N greater than 2.0 when held at a temperature at or below 25° C. for at least two hours.07-01-2010
20110092753HYDROISOMERIZATION AND SELECTIVE HYDROGENATION OF FEEDSTOCK IN IONIC LIQUID-CATALYZED ALKYLATION - A process for producing alkylate comprising contacting a first hydrocarbon stream comprising at least one olefin having from 2 to 6 carbon atoms which contains 1,3-butadiene and 1-butene with a hydroisomerization catalyst in the presence of hydrogen under conditions favoring the simultaneous selective hydrogenation of 1,3-butadiene to butenes and the isomerization of 1-butene to 2-butene and contacting the resulting stream and a second hydrocarbon stream comprising at least one isoparaffin having from 3 to 6 carbon atoms with an acidic ionic liquid catalyst under alkylation conditions to produce an alkylate is disclosed.04-21-2011

Patent applications by Howard S. Lacheen, Richmond, CA US