Class / Patent application number | Description | Number of patent applications / Date published |
568917000 | By sorption | 16 |
20100081851 | ADSORBENT FOR DRYING ETHANOL - This invention involves the use of a more effective adsorbent to dehydrate ethanol. The most common use for the ethanol is an additive to gasoline. The preferred adsorbent is a type 3A adsorbent that has been ion exchanged with potassium at a level of about 0.6. Surprisingly, this adsorbent has a significantly improved resistance to damage by water upset events. | 04-01-2010 |
20100087689 | METHOD FOR DEPLETION OF SULFUR AND/OR COMPOUNDS CONTAINING SULFUR FROM A BIOCHEMICALLY PRODUCED ORGANIC COMPOUND - Method of reducing the concentration of sulfur and/or a sulfur-containing compound in a biochemically prepared organic compound by bringing the respective organic compound into contact with an adsorbent, wherein the adsorbent is a clay doped with silver and/or a silver compound. | 04-08-2010 |
20100137657 | COMBINED TEMPERATURE CONTROLLED WATER ADSORPTION AND TWO STAGE HEAT PUMP PROCESS FOR FUEL ETHANOL DEHYDRATION - Systems and processes for dehydration of a process stream in the production of motor fuel grade ethanol (MFGE) can include temperature controlled adsorption of water in the process stream, and heat pumping to transfer heat from the process stream to a heat sink using one or more stages of heat pumping. One stage of heat pumping can be achieved during the regeneration process of a temperature controlled adsorber by desorbing the adsorbed water at a thermal condition enabling useful heat recovery. Another stage of heat pumping can be achieved during the adsorption process of a temperature controlled adsorber by transferring the heat of water adsorption to a heat sink. The heat sink with respect to each stage of heat pumping can be a solids separation unit, such as a beer column. | 06-03-2010 |
20110130598 | MEMBRANE AUGMENTED DISTILLATION TO SEPARATE SOLVENTS FROM WATER - Processes for removing water from organic solvents, such as ethanol. The processes include distillation to form a rectified overhead vapor, compression of the rectified vapor, and treatment of the compressed vapor by two sequential membrane separation steps. | 06-02-2011 |
20110172468 | METHOD FOR PRODUCING ALCOHOL, METHOD FOR PRODUCING HYDROGEN OR SYNTHESIS GAS USING THE METHOD FOR PRODUCING ALCOHOL, AND ALCOHOL - One object of the present invention is to provide a method for producing an alcohol which can produce a target alcohol containing a remarkably low content of the sulfur compound(s), and the present invention provides a method for producing an alcohol comprising a separation process which reduces the content of sulfur compound(s) in a crude alcohol containing at least the sulfur compound(s) through desulfurization treatment in which the crude alcohol is contacted with a separation membrane based on a pervaporation method, thereby a content of the sulfur composition in the crude alcohol is decreased. | 07-14-2011 |
20130158303 | METHOD FOR SEPARATING BUTANOL - Disclosed is a method for separating butanol. The method uses hydrophobic macroporous polymer adsorbent to separate butanol in a mixed solution, and the process comprises the following steps: 1) using macroporous polymer adsorbent to adsorb butanol in a mixed solution; 2) desorbing butanol from macroporous polymer adsorbent. The method is simple; the separation time is short; the efficiency of butanol recovery is high; and the separating cost is low. | 06-20-2013 |
20130261351 | TEMPORARY DESULPHURIZATION REACTOR FOR PRE-TREATING A HYDROCARBON FEED BEFORE STEAM REFORMING WITH A VIEW TO HYDROGEN PRODUCTION - The present invention describes a process for pre-treating a steam reforming feed containing sulphur-containing compounds, using two desulphurization reactors:
| 10-03-2013 |
20130317260 | PROCESS AND ADSORBENT FOR SEPARATING ETHANOL AND ASSOCIATED OXYGENATES FROM A BIOFERMENTATION SYSTEM - Disclosed is a process and an adsorbent for the separation of ethanol associated oxygenates from a dilute mixture of ethanol and associated oxygenates in water in the presence of organic compounds derived from a biofermentation process. After pretreatment, the separation is carried out in a simulated moving bed adsorption system employing an stationary phase adsorbent comprising fluorinated carbon or modified C18 silica gel selective for the adsorption of ethanol and associated oxygenates, such as 2,3-butanediol, with a mobile phase desorbent selected from the group consisting of methanol, ethanol, propanol, and methyl tertiary butyl ether. The process is useful for removing water from dilute aqueous mixtures of organic compounds comprising ethanol in dilute concentration in water and produced by fermentation, biomass extraction, biocatalytic and enzymatic processes which are not economically recoverable by conventional distillation methods. | 11-28-2013 |
20130317261 | SMB PROCESS FOR THE PURIFICATION OF ETHANOL AND BUTANEDIOL WITH INTEGRATED REGENERATION - Disclosed is an improved SMB process incorporating novel regeneration steps for the separation of ethanol associated oxygenates such as butanediol from a dilute mixture of ethanol and associated oxygenates in water in the presence of organic compounds derived from a biofermentation process. Applicant discovered that increasing the number of raffinate streams alone or in combination with a hot regeneration zone within the SMB cycle can significantly reduce the capital and operating costs associated with the incorporation of the SMB process in a complex for the production of ethanol and butanediol from biofermentation effluent. The process is useful for removing water from dilute aqueous mixtures of organic compounds comprising ethanol in dilute concentration in water and produced by fermentation, biomass extraction, biocatalytic and enzymatic processes which are not economically recoverable by conventional distillation methods. | 11-28-2013 |
20140058140 | Hydrocarbon and Divalent Cation Removal from Rich Mono ethylene Glycol (MEG) Feed Streams by Regenerable Filters - A system and process for removing hydrocarbons and divalent cations from a rich MEG feed stream is presented. A hydrocarbon removal bed containing a solid adsorbent material adsorbs the hydrocarbons in the rich MEG feed stream as it passes through the hydrocarbon removal bed. After the hydrocarbons have been removed, the rich MEG feed stream flows through an ion exchange bed containing an ion exchange resin in order to remove divalent cations. The rich MEG feed stream then flows through a flash separator and a distillation column to reclaim MEG. Spent solid adsorbent material in the hydrocarbon removal beds and spent ion exchange resin in the ion exchange beds may be regenerated in place using by-products of the MEG reclamation process. | 02-27-2014 |
20140221702 | MOLECULAR SIEVE ADSORBENT BLENDS AND USES THEREOF - A process for the production of a molecular sieve blend with improved performance characteristics produced by preparing or obtaining a hydrophilic zeolite, particularly a hydrophilic zeolite A with a low SiO | 08-07-2014 |
20150065757 | COMPOSITE MATERIAL COMPOSED OF A POLYMER CONTAINING FLUORINE, HYDROPHOBIC ZEOLITE PARTICLES AND A METAL MATERIAL - The invention relates to a composite material comprising a) a porous matrix of a polymer containing fluorine and having a percentage of tetrafluoroethylene monomer units of at least 95 mol % based on the total of monomer units, b) hydrophobic zeolite particles which are embedded in the matrix and around which matrix filaments extend, and c) at least one metal material. The invention further relates to the use of the composite material for adsorbing organic molecules from a gaseous or liquid mixture of substances that contains at least one organic component, and to a method for removing organic molecules from a gaseous or liquid mixture of substances. | 03-05-2015 |
20150094500 | POLYBENZOXAZOLE MEMBRANES FROM SELF-CROSS-LINKABLE AROMATIC POLYIMIDE MEMBRANES - A method of making a polybenzoxazole (PBO) membrane from a self-cross-linked aromatic polyimide polymer membrane is provided. These membranes are useful in the separation of gas mixtures and liquid mixtures. The PBO membrane is made by fabricating a self-cross-linkable aromatic polyimide polymer membrane comprising both hydroxyl functional groups and carboxylic acid functional groups; cross-linking the polymer to form a self-cross-linked aromatic polyimide polymer membrane by heating the membrane at 250° to 300° C. under an inert atmosphere; and thermal heating the self-cross-linked aromatic polyimide polymer membrane at a temperature from about 350° to 500° C. under an inert atmosphere to convert the self-cross-linked aromatic polyimide polymer membrane into a PBO membrane. A membrane coating step may be added by coating the selective layer surface of the PBO membrane with a thin layer of high permeability material. | 04-02-2015 |
20150141710 | PURIFICATION OF ALCOHOLS PRIOR TO THEIR USE IN THE PRESENCE OF AN ACID CATALYST - Process for the purification of an alcohol in the course of a process comprising:
| 05-21-2015 |
20150328596 | POLYBENZOXAZOLE MEMBRANES FROM SELF-CROSS-LINKABLE AROMATIC POLYIMIDE MEMBRANES - A method of making a polybenzoxazole (PBO) membrane from a self-cross-linked aromatic polyimide polymer membrane is provided. These membranes are useful in the separation of gas mixtures and liquid mixtures. The PBO membrane is made by fabricating a self-cross-linkable aromatic polyimide polymer membrane comprising both hydroxyl functional groups and carboxylic acid functional groups; cross-linking the polymer to form a self-cross-linked aromatic polyimide polymer membrane by heating the membrane at 250° to 300° C. under an inert atmosphere; and thermal heating the self-cross-linked aromatic polyimide polymer membrane at a temperature from about 350° to 500° C. under an inert atmosphere to convert the self-cross-linked aromatic polyimide polymer membrane into a PBO membrane. A membrane coating step may be added by coating the selective layer surface of the PBO membrane with a thin layer of high permeability material. | 11-19-2015 |
20160250586 | TREATMENT OF ALCOHOL COMPOSITIONS | 09-01-2016 |