| Lyondell Chemical Technology, L.P. Patent applications |
| Patent application number | Title | Published |
|---|
| 20160115102 | OXIDATIVE METHODS OF PHOSPHORUS REMOVAL FROM LIQUID HYDROCARBONS - Provided herein in is a method of removing phosphorus from a liquid hydrocarbon that includes the steps of (a) contacting the liquid hydrocarbon with an aqueous solution that comprises an oxidizing agent to form a reaction mixture that comprises an aqueous component and a hydrocarbon component, wherein the liquid hydrocarbon comprises at least an alkene | 04-28-2016 |
| 20150031905 | ALKYLENE OXIDE SEPARATION SYSTEMS, METHODS, AND APPARATUSES - A propylene oxide separation system that comprises a distillation column, a decanter, and water wash system. The distillation column is configured to receive a crude propylene oxide stream, discharge an impurity stream that comprises methanol and water, and discharge a bottoms stream that comprises a majority of the propylene oxide entering in the crude propylene oxide stream. The decanter is configured to receive at least a portion of the impurity stream and a hydrocarbon solvent to provide for formation in the decanter of an organic phase and an aqueous phase. The organic phase comprises propylene oxide and hydrocarbon solvent, and is sent to the distillation column. The aqueous phase comprises a majority weight percent of the methanol and the water entering in the impurity stream. The water wash system is configured to receive and purge the aqueous phase from the propylene oxide separation system. | 01-29-2015 |
| 20140135537 | PROCESS CONTROL WITH RAMAN SPECTROSCOPY - Embodiments of the present disclosure include methods of effecting process control in a reaction system for the production of 1,4-butanediol, the method including determining at least one property of a sample from the reaction system using Raman spectroscopy, and adjusting at least one parameter of the reaction system in response to the at least one determined property. Embodiments may also include methods of producing 1,4-butanediol, the method including reacting allyl alcohol with carbon monoxide and hydrogen in the presence of a solvent and a catalyst to produce a reactor fluid, sampling the reaction, determining at least one property of the sample using Raman spectroscopy, and adjusting the reaction in response to the at least one determined property. | 05-15-2014 |
| 20140121429 | PROPYLENE PRODUCTION PROCESS WITH HEAVIES RECYCLE - Processes for forming propylene are described herein. The processes generally include reacting a metathesis feed stream including n-butene with ethylene in the presence of a metathesis catalyst via a metathesis reaction to form a metathesis product stream including propylene, ethylene, butene and C | 05-01-2014 |
| 20140081040 | PROCESS FOR PRE-TREATMENT OF A CATALYST SUPPORT AND CATALYST PREPARED THEREFROM - Methods of forming noble metal catalysts, noble metal catalysts formed therefrom and process for using noble metal catalysts are described herein. The methods generally include contacting a support material with a pre-treatment agent including a dilute basic solution of an alkali or alkaline earth metal to form a contacted support; drying the contacted support to form a pre-treated support; and impregnating the pre-treated support with at least one noble metal to form the noble metal catalyst. | 03-20-2014 |
| 20140046092 | REMOVING HYDROCARBON IMPURITIES FROM ACETIC ACID PRODUCTION INTERMEDIATE - A method for removing hydrocarbon impurities from an acetic acid production intermediate is disclosed. The method comprises extracting the intermediate with a hydrocarbon extracting agent. The extraction is preferably performed with the alkane distillation bottom stream which comprises methyl iodide, acetic acid, and hydrocarbon impurities. The extraction forms a light phase which comprises the hydrocarbon impurity and the extracting agent and a heavy phase which comprises methyl iodide and acetic acid. The extraction heavy phase is optionally recycled to the alkane distillation or to the carbonylation reaction. | 02-13-2014 |
| 20140014556 | PROCESS FOR REDUCING ULTRA LOW SULFUR DIESEL COLOR - The present invention is a process for preparing ultra low sulfur diesel. The steps include reacting a feedstock of petroleum crude oil with hydrogen in the presence of a hydrodesulfurization catalyst under hydrodesulfurization conditions, fractionating the reaction products, flash distilling the bottoms fraction, condensing the volatile distillate fraction as ultra low sulfur diesel, and recycling the distillation bottoms fraction for further reacting with hydrogen. | 01-16-2014 |
| 20140005440 | RATE AND SELECTIVITY IMPROVEMENT IN HYDROFORMYLATION OF ALLYL ALCOHOL | 01-02-2014 |
| 20130345474 | Process for the Production of Acetic Acid - A process for producing acetic acid includes: obtaining hydrogen iodide in an acetic acid production system; and continually introducing a complexing agent into the system, wherein the complexing agent and hydrogen iodide interact to form a complex. | 12-26-2013 |
| 20130296616 | PROCESS FOR THE MANUFACTURE OF ACETIC ACID - The phase separation in the decanter of a process for producing acetic acid by carbonylating methanol in the presence of a catalyst under low water-high acid conditions is improved by forming a liquid mixture (D) which has a water content of at most 20% by weight, based on the weight of the liquid mixture, and a weight ratio of acetic acid to water of at least 1:1, and partitioning the liquid mixture by providing for an alkane(s) content of D of from 0.1 to 15% by weight, based on the weight of D, to obtain a light, aqueous phase and a heavy, organic phase. | 11-07-2013 |
| 20130296612 | METHOD OF PURIFYING CRUDE ACETONE STREAM - The present invention relates to a method of treating a crude acetone stream. The method generally includes treating a crude acetone stream which has acetone and at least one low-boiling impurity with a catalyst to form a treated acetone stream that has acetone and at least one higher-boiling impurity and then distilling the treated acetone stream to remove at least a portion of the higher-boiling impurity to produce a purified acetone stream. This is particularly helpful in processes where a more pure acetone is desired, including a process for making purified isopropanol. | 11-07-2013 |
| 20130190531 | PROCESS FOR THE MANUFACTURE OF ACETIC ACID - The phase separation in the decanter of a process for producing acetic acid by carbonylating methanol in the presence of a catalyst under low water-high acid conditions is facilitated and expedited by forming a liquid mixture (D) which has a water content of at most 10% by weight, based on the weight of the liquid mixture, an acetic acid content of at least 10% by weight, based on the weight of the liquid mixture, and a weight ratio of methyl iodide to methyl acetate of at least 1.5:1, and partitioning the liquid mixture at a temperature of from 0 to 35° C. | 07-25-2013 |
| 20130172647 | PROPYLENE PRODUCTION PROCESS - Processes and systems for forming propylene are described herein. The processes generally include reacting a metathesis feed stream including at least 95 wt. % 2-butene with ethylene in the presence of a metathesis catalyst to form a metathesis product stream including propylene, and recovering propylene from the process. | 07-04-2013 |
| 20130025501 | Titania-Containing Extrudate - An extrudate comprising titania, a carboxyalkyl cellulose, and a hydroxyalkyl cellulose is disclosed. The extrudates have a smooth outer surface when they exit the extruder. The extrusion processibility is improved. | 01-31-2013 |
| 20120310006 | PROCESS FOR PRODUCING ALLYL ACETATE - A process for producing allyl acetate is disclosed. The process comprises reacting a feed comprising propylene, acetic acid, oxygen, and carbon dioxide in the presence of a supported palladium catalyst. The feed comprises from 2 to 6 mole percent carbon dioxide, which improves the selectivity to allyl acetate. | 12-06-2012 |
| 20120302784 | Preparation of Palladium-Gold Catalyst - A method for preparing a palladium-gold catalyst containing a titania extrudate is disclosed. The titania extrudate is produced by using a carboxyalkyl cellulose and a hydroxyalkyl cellulose as extrusion aids. The titania extrudate has improved processibility and/or mechanical properties. After calcination, the extrudate is used as a carrier for the palladium-gold catalyst. The catalyst is useful in producing vinyl acetate by oxidizing ethylene with oxygen in the presence of acetic acid. | 11-29-2012 |
| 20120220801 | ACETIC ACID PRODUCTION PROCESS - A method for determining the characteristic of one or more components in a step of an acetic acid production process using Raman spectroscopy. The process includes providing a feed stream comprising multiple components to a separations unit, one of the components being acetic acid, the separations unit separating the feed stream into two or more exit streams having a different composition from one another, and measuring a characteristic of one or more of the components by Raman spectroscopic analysis. | 08-30-2012 |
| 20120095275 | Production of 1-Butene and Propylene From Ethylene - A process for producing propylene and 1-butene is disclosed. The process comprises dimerizing ethylene in the presence of a dimerization catalyst to produce a dimerization mixture comprising 1-butene and 2-butenes. The dimerization mixture is distilled to produce a 1-butene stream containing 1-butene and ethylene, a 2-butenes stream, and a heavy stream. The 2-butenes stream is reacted with ethylene in the presence of a metathesis catalyst to produce a metathesis mixture comprising propylene, ethylene, and 2-butenes. Propylene is separated from the metathesis mixture. | 04-19-2012 |
| 20120095259 | Acetic Acid Production Process - Disclosed is a method for controlling an acetic acid production process. The method comprises: (i) reacting methanol and carbon monoxide in the presence of a carbonylation catalyst, a catalyst stabilizer, methyl iodide, water, and methyl acetate to produce a reactor mixture which comprises the catalyst, the catalyst stabilizer, methanol, carbon monoxide, carbon dioxide, methyl iodide, methyl acetate, water, and acetic acid; (ii) measuring the concentration of a component of the reactor mixture by Raman spectroscopic analysis; and (iii) adjusting the component concentration in the reactor mixture in response to the measured concentration. The method of the invention is particularly useful for measuring and controlling the concentration of carbon monoxide in the reactor liquid mixture. | 04-19-2012 |
| 20120083612 | DIRECT EPOXIDATION CATALYST - The invention is a process for epoxidizing an olefin with hydrogen and oxygen in a solvent comprising acetonitrile in the presence of an quinone-acid salt and a catalyst comprising a titanium zeolite and a noble metal. The process results in higher productivity and improved selectivity to propylene oxide from hydrogen and oxygen, as compared to processes that use only a quinone. | 04-05-2012 |
| 20110147196 | Recovery of propane purge stream from a propylene oxide production process - A process for recovering a purified propane purge comprising fractionating in a first distillation column a feed stream comprising 2 to 10 wt % methanol, 5 to 20 wt % propylene, and 70 to 90 wt % propane thereby producing a first light product stream and a first heavy product stream, the first heavy product stream comprising less than 1.5 wt % propylene, and an amount of methanol that is at least 70 wt % of the methanol present in the first distillation column feed stream; and fractionating the first heavy product stream in a second distillation column at a pressure from 220 to 258 psia, thereby producing a second light product stream and a second heavy product stream, the second light product stream comprising at least 96 wt % propane and less than 1 wt. % methanol, and wherein an amount of propane present in the second light product stream is 20 to 45 wt % of the propane present in the first distillation column feed stream. | 06-23-2011 |
| 20100174099 | Propylene oxide reactor gas distribution system - A device for reacting fluids comprising:
| 07-08-2010 |
