| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 568699000 | Purification or recovery | 9 |
| 20090275786 | PROCESS FOR PRODUCING GLYCERYL ETHER - A method for producing a glyceryl ether, including the steps of feeding a compound represented by the general formula (I): | 11-05-2009 |
| 20110040129 | PROCESS FOR THE PRODUCTION OF DIMETHYL ETHER - A process for the production of dimethyl ether from a methanol reactor effluent is disclosed. The process may include: contacting an aqueous extractant comprising water and an effluent from a methanol synthesis reactor comprising methanol and one or more of methane, water, carbon monoxide, carbon dioxide, hydrogen, and nitrogen. At least a portion of the methanol partitions into the aqueous extractant; recovering an extract fraction comprising the aqueous extractant and methanol. The extract fraction is fed to a catalytic distillation reactor system for concurrently: contacting the methanol with catalyst in a reaction zone thereby catalytically reacting at least a portion of the methanol to form dimethyl ether and water; and fractionating the resulting dimethyl ether and the water to recover a first overheads fraction comprising dimethyl ether and a first bottoms fraction comprising water. | 02-17-2011 |
| 20120289750 | Process and Apparatus for Coupling Separation and Purification of Ethyl Tert-Butyl Ether - A process and device of coupling separation and purification to produce ethyl tert-butyl ether (ETBE) is provided, wherein ethanol containing 1 wt % to 15 wt % of water, and a mixture containing ETBE and ethanol are fed into the distillation-extraction coupling zone for separation and purification. Said distillation-extraction coupling zone is composed of a distillation column and an extraction column. Said process and device can achieve the cogeneration of ETBE and ethanol, and possesses high commercial values. | 11-15-2012 |
| 20130303806 | METHOD FOR PURIFICATION OF MIXTURES COMPRISING MTBE AS WELL AS PRODUCTION OF ISOBUTENE BY SPLITTING OF MIXTURES COMPRISING MTBE - The present invention relates to a process for efficient purification of MTBE-containing mixtures and for preparation of isobutene by cracking of MTBE-containing mixtures. | 11-14-2013 |
| 20140187824 | PROCESS FOR THE PREPARATION OF AN OLEFINIC PRODUCT COMPRISING ETHYLENE AND/OR PROPYLENE - An oxygenate to olefins (OTO) process, comprising the steps of: (i) purifying an oxygenate feedstream comprising one or more ionic contaminants by contacting the feedstream with a membrane, resulting in the formation of a retentate and a permeate separated by the membrane, which permeate is a purified oxygenate stream which contains a lower ionic contaminant concentration than the original oxygenate feedstream; (ii) introducing the purified oxygenate stream into an oxygenate to olefins reaction zone; and (iii) contacting the purified oxygenate stream with a molecular sieve catalyst in the oxygenate to olefins reaction zone to form a product stream comprising olefins. | 07-03-2014 |
| 20140200373 | FORMATE BASED HEAT STABLE SALT MITIGATION IN PHYSICAL SOLVENT ACID GAS ABSORPTION PROCESSES - There is described a process for reducing the concentration of formate based heat stable salts formed in a physical solvent acid gas absorption process ( | 07-17-2014 |
| 20140357901 | SYSTEMS AND METHODS FOR RECOVERING DIMETHYL ETHER FROM GAS MIXTURES AND LIQUID MIXTURES - An apparatus includes an airtight shell and an absorption column arranged inside the shell. The absorption column has a multiple stage component, and a single stage component arranged below the multiple stage component with respect to gravity. A gap is arranged between the multiple stage component and the single stage component. The apparatus also includes a gas input in fluid communication with the absorption column for receiving a gas mixture, and a liquid input is in fluid communication with the absorption column for receiving a liquid mixture. A liquid-liquid separator is arranged below the absorption column with respect to gravity. The gas input is arranged below the single stage component. The liquid input is arranged above the single stage component and below the multiple stage component. A method is described for using the apparatus to remove DME from gas and liquid mixtures. | 12-04-2014 |
| 20160031780 | ETHER BLENDS VIA REACTIVE DISTILLATION - A method for forming a blend of ethers from a blend of alcohols includes a step of reacting a hydrocarbon-containing gas with an oxygen-containing gas to form first product blend. The first product blend includes a blend of partially oxygenated compounds. The blend of partially oxygenated compounds is provided to a reactive distillation station where it is converted a second product blend. The second product blend typically includes a mixture of ethers. An apparatus implementing the method is also provided. | 02-04-2016 |
| 20160194258 | METHOD FOR PRODUCING HYDROCARBON PRODUCTS | 07-07-2016 |
