| LURGI GMBH Patent applications |
| Patent application number | Title | Published |
|---|
| 20120129958 | METHOD AND PLANT FOR THE PRODUCTION OF METHANOL - A method for producing methanol from a synthesis gas containing hydrogen and carbon oxides with a high content of inert components includes passing the synthesis gas through a synthesis reactor so as to catalytically convert a part of the carbon oxides to methanol. The methanol is separated from the obtained mixture from the reactor. The mixture liberated from methanol is separated into a cycle stream and a purge stream. The cycle stream is recirculated so as to form a synthesis circle and combined with a fresh gas stream including hydrogen and carbon oxides before being charged into the synthesis reactor. The purge stream is supplied to a secondary reactor so as to catalytically convert a further part of the hydrogen and carbon oxides to methanol. Further methanol is separated the obtained mixture including synthesis gas, inert components and methanol vapor. | 05-24-2012 |
| 20120102829 | METHOD AND APPARATUS FOR PRODUCING SYNTHETIC FUELS - For producing synthetic fuels, an educt mixture containing steam and oxygenates, such as methanol and/or dimethyl ether, is converted to olefins on a catalyst in a first process stage, and this olefin mixture then is divided in a separating means into a stream rich in C | 05-03-2012 |
| 20120101312 | METHOD AND SYSTEM FOR PRODUCING METHANOL AND DIMETHYL ETHER - In the production of purified methanol and/or dimethyl ether from crude methanol, the crude methanol is processed in at least one prepurification stage, a first partial stream of the prepurified methanol is supplied to a final methanol purification and a second partial stream of the prepurified methanol is supplied to a reactor and at least partly converted to dimethyl ether. The dimethyl ether recovered is purified in at least one purification stage, wherein non-reacted methanol is withdrawn from the dimethyl ether purification stage and at least partly supplied to the final methanol purification. In this way, both purified methanol and dimethyl ether can be produced in parallel, wherein the quantities of both products obtained are flexibly adjustable. | 04-26-2012 |
| 20120085973 | METHOD FOR PRODUCING PROCESS GAS FOR THE CLAUS PROCESS - With a method configured to generate process gas that contains hydrogen sulfide and sulfur dioxide for the Claus process, hydrogen-sulfide containing feed gas is burnt with pure oxygen by means of several burners opening out into a combustion chamber wherein the pure oxygen is fed into the combustion chamber through a central tube each, the feed gas through a tube arranged coaxially around the central tube and inert gas as purge gas via an annular duct coaxially surrounding the feed gas tube. A favorable option of the method consists in the use of CO | 04-12-2012 |
| 20110319686 | PROCESS AND PLANT FOR PRODUCING C2-C4 OLEFINS FROM METHANOL AND/OR DIMETHYL ETHER WITH INCREASED YIELD - A process and a plant for producing C | 12-29-2011 |
| 20110295043 | METHOD AND DEVICE FOR PRODUCING DIMETHYL ETHER FROM METHANOL - A process produces dimethyl ether (DME) from methanol (MeOH). The process includes charging a feed mixture consisting of raw MeOH and a process-internally obtained return flow substantially consisting of unconverted MeOH and reaction water to an MeOH column. The feed mixture is evaporated in the MeOH column to form a first distillate substantially consisting of vaporous MeOH. The first distillate is supplied to a reactor and the MeOH is converted to DME by splitting off water in the reactor so as to form a reaction mixture. The reaction mixture is withdrawn from the reactor, charged to a mixture column and separated into a bottom product substantially consisting of water and a second distillate substantially consisting of DME and MeOH. The second distillate is separated in a DME column into a third distillate substantially consisting of DME, a bottom product consisting essentially of water-poor MeOH, and uncondensable gases discharged overhead. The bottom product is either supplied to a top of the MeOH column or mixed with another bottom product withdrawn from a forerun column. | 12-01-2011 |
| 20110288358 | METHOD FOR PRODUCING A PRODUCT CONTAINING C3H6 AND C2H4 - A process for producing a product containing C3H6 and C2H4 includes simultaneous conversion of MeOH and EtOH in an adiabatic sequentially operated reactor containing a plurality of reaction stages. Each of the plurality of reaction stages of the reactor is provided with a fixed bed of a form-selective catalyst. A gaseous feed stream including MeOH, DME and H2O is charged to at least a first of the reaction stages of the reactor with a temperature in a range of 300 to 600° C. at a pressure in a range of 0.1 to 20 bar[a]. EtOH is fed into at least, one of the reaction stages of the reactor. | 11-24-2011 |
| 20110278152 | PROCESS AND PLANT FOR RECOVERING NH3 FROM A MIXTURE COMPRISING NH3 AND ACID GASES - Disclosed herein is a process and a plant for recovering ammonia from a mixture including ammonia, acid gas containing H | 11-17-2011 |
| 20110252697 | METHOD AND SYSTEM FOR PRODUCING BIODIESEL - A process for producing biodiesel from fats, oils or split fatty acids containing steryl glycosides, wherein the fats, oils or split fatty acids are reacted with short-chain alkanols in the presence of a catalyst by transesterification or esterification to a fatty acid alkyl ester to obtain a first product stream, includes washing the first product stream with water in a washing device, so as to form a suspension layer on a phase boundary layer between a heavy phase rich in water and the first light phase rich in the fatty acid alkyl ester. The suspension layer is treated by introducing kinetic energy. A second product stream is withdrawn from the first light phase and intensively mixed with water to obtain a third product stream. A mechanical separation is performed on the third product stream to provide a fourth product stream and a fifth product stream. The fifth product stream is withdrawn as a heavy phase that is enriched in the steryl glycosides. A product conditioning is performed on the fourth product stream to obtain on-spec biodiesel. | 10-20-2011 |
| 20110178188 | PROCESS AND PLANT FOR PRODUCING METHANOL - For producing methanol from a synthesis gas containing hydrogen and carbon oxides the synthesis gas is passed through a first, water-cooled reactor in which a part of the carbon oxides is catalytically converted to methanol. The resulting mixture containing synthesis gas and methanol vapor is supplied to a second, gas-cooled reactor in which a further part of the carbon oxides is converted to methanol. Subsequently, methanol is separated from the synthesis gas, and synthesis gas is recirculated to the first reactor. The cooling gas flows through the second reactor cocurrent to the mixture withdrawn from the first reactor. | 07-21-2011 |
| 20110178187 | PROCESS AND PLANT FOR PRODUCING METHANOL - For producing methanol from a synthesis gas containing hydrogen and carbon oxides the synthesis gas is passed through a first, preferably water-cooled reactor in which a part of the carbon oxides is catalytically converted to methanol, and the resulting mixture containing synthesis gas and methanol vapor is supplied to a second, preferably gas-cooled reactor in which a further part of the carbon oxides is converted to methanol. The mixture withdrawn from the first reactor is guided through a gas/gas heat exchanger in which the mixture is cooled to a temperature below its dew point. Subsequently, methanol is separated from the gas stream in a methanol separator and withdrawn, while the remaining gas stream is supplied to the second reactor. | 07-21-2011 |
| 20110166368 | METHOD AND SYSTEM FOR OBTAINING SOLID REACTION PRODUCTS FROM SOLUTIONS - A process for recovering solid reaction products during partial oxidation of hydrocarbons in a liquid solvent as a reaction medium by multi-stage evaporative crystallization includes determining a final temperature of the multi-stage evaporative crystallization based on a melting point of the solvent. The pressure and temperature of the solvent is reduced in steps via successive crystallization stages until the final temperature is reached. Each of the crystallization stages includes a compressor configured to perform the reducing of the pressure and to withdraw vapors formed. The vapors from the compressor of a lower expansion pressure crystallization stage are introduced into a vapor discharge conduit of a next successive higher expansion pressure crystallization stage upstream of the compressor of the higher expansion pressure crystallization stage. | 07-07-2011 |
| 20110126542 | METHOD AND DEVICE FOR THE TREATMENT OF PRODUCT GAS PRODUCED BY PRESSURE GASIFICATION OF SOLID FUELS - Upon cooling to 15 to 45° C., a process for the treatment of raw product gas generated by pressure gasification of solid fuels comprises the removal of HCN and NH3 in a preliminary stage, of H2S and COS and possibly other sulfur-containing compounds in a first stage and of CO2 in a second stage by physisorption with cold oxygenate, and the pure product gas is supplied to the direct reduction of iron ore as reduction gas and/or as fuel gas. An improvement of the process consists in that recycle gas loaded with CO2 and steam, which is branched off from the circuit of the recycle gas of the direct reduction of iron ore, is admixed to the desulfurized product gas upon removal of the steam contained therein. | 06-02-2011 |
| 20110065966 | PROCESS AND PLANT FOR PRODUCING METHANOL - In the production of methanol from a synthesis gas containing hydrogen and carbon oxides, the synthesis gas is passed through a first, preferably water-cooled reactor, in which a part of the carbon oxides is catalytically converted to methanol. The obtained mixture containing synthesis gas and methanol vapor is supplied to a second, preferably gas-cooled reactor, in which a further part of the carbon oxides is converted to methanol. Subsequently, methanol is separated from the synthesis gas, and the synthesis gas is recirculated to the first reactor. To achieve a maximum methanol yield even with an aged catalyst, a partial stream of the synthesis gas is guided past the first reactor and introduced directly into the second reactor. | 03-17-2011 |
| 20110054225 | METHOD FOR THE PRODUCTION OF FATTY ALCOHOLS - Method for producing fatty alcohols includes splitting vegetable oils and animal fats under pressure into fatty acids and glycerol in counterflow to steam. The reaction product is physically separated into fatty acids and sweet water containing glycerol. The fatty acids are subjected to a distillation, and the separated fatty acid fraction is mixed together with fatty alcohol at 230 to 270° C. and atmospheric pressure. The wax esters obtained by esterification are hydrogenated to fatty alcohols by adding hydrogen on a fixed-bed catalyst, and the reaction product is separated into fatty alcohols and hydrogen. The wax esters are hydrogenated on a fixed bed of uniformly shaped catalyst bodies produced by extrusion, which consist of the main components copper and copper-chromium oxide and the secondary components zinc, aluminum, iron, silicon and alkaline earth elements, at 180 to 220° C. and 70 to 100 bar(a). | 03-03-2011 |
| 20110000366 | METHOD FOR TREATING A PROCESS GAS FLOW CONTAINING CO2 - From the CO | 01-06-2011 |
| 20100311997 | METHOD FOR PRODUCING FATTY ACID METHYL ESTERS OR FATTY ACID ETHYL ESTERS - Method for producing C | 12-09-2010 |
| 20100286453 | PROCESS AND PLANT FOR PRODUCING HYDROCARBONS - When producing hydrocarbons from fatty acid esters contained in fats or fat oils, the fatty acid esters initially are split up by hydrolytic decomposition into a first stream containing crude alcohol and water and a second stream containing free fatty acids, and subsequently the free fatty acids of the second stream are hydrogenated with hydrogen to obtain saturated hydrocarbons. | 11-11-2010 |
| 20100206771 | PROCESS AND PLANT FOR PRODUCING HYDROCARBONS - For the production of hydrocarbons, in particular C | 08-19-2010 |
| 20100137589 | GAS SCRUBBER AND USE OF THE GAS SCRUBBER IN MELAMINE PRODUCTION - In a gas scrubber, a gas stream containing at least one sublimed substance is brought in contact with a liquid or melt stream containing at least one thermally convertible substance, which has a lower temperature than the gas stream. For the intensive and intimate mixing of the gas stream with the liquid or melt stream, an orifice plate with a plurality of holes each surrounded by a retaining edge is provided in the upper part of the gas scrubber, and above the orifice plate inlets for the gas stream and the liquid or melt stream are provided. | 06-03-2010 |
| 20100111824 | HYDROGEN PRODUCTION METHOD - In a process for producing hydrocarbonaceous educts, the starting material is autothermally gasified by non-catalytic partial oxidation by adding oxygen-containing gas and hydrogen at temperatures of 1200 to 1500° C. and pressures of 15 to 100 bar | 05-06-2010 |
| 20100105935 | PROCESS FOR CONTINUOUSLY PREPARING FATTY ACID METHYL ESTERS OR FATTY ESTERS - In a process for producing fatty acid methyl ester (FAME) from fats or oils by transesterification with methanol in the presence of an alkaline catalyst in at least two reaction stages traversed in succession, each consisting of a stirred-tank reactor and a downstream separator, a phase containing FAME and a phase containing glycerol are generated, which are separated in the separator, wherein the phase containing FAME is recirculated into the stirred-tank reactor of the next succeeding reaction stage and the phase containing glycerol is recirculated into the stirred-tank reactor of the first reaction stage, and the crude FAME withdrawn from the separator of the last reaction stage is transferred into a separator and the FAME withdrawn is dried. To increase the yield of FAME, the aqueous phase containing glycerol, methanol, undissociated soaps and FAME, which is obtained upon withdrawal of the FAME, is thoroughly mixed with the phases withdrawn from the separators of the first to penultimate reaction stages, which contain glycerol and FAME, and the mixture is separated in a separator into a phase containing FAME and a phase containing glycerol. | 04-29-2010 |
| 20100074829 | PROCESS FOR RECOVERING CARBON DIOXIDE - In a process for obtaining CO | 03-25-2010 |
| 20100063337 | REACTOR FOR PRODUCING C2- TO C8- OLEFINS FROM A MATERIAL FLOW CONTAINING OXYGENATE, WATER VAPOR AND ONE OR MORE HYDROCARBONS - The invention relates to a reactor for the production of C | 03-11-2010 |
| 20100037521 | Novel Steam Reformer Based Hydrogen Plant Scheme for Enhanced Carbon Dioxide Recovery - A novel steam reformer unit design, a novel hydrogen PSA unit design, a novel hydrogen/nitrogen enrichment unit design, and novel processing scheme application are presented. The result of these innovations results in re-allocating most of the total hydrogen plant CO2 emissions load to high pressure syngas stream exiting the water gas shift reactor while minimizing the CO2 emissions load from the reformer furnace flue gas. As compared to the conventional 60/40 split of total CO2 emissions in syngas/flue gas streams for steam reformer based conventional hydrogen plant designs, the present invention results in 85/15 or better CO2 split. This will permit about 85% or better of the total CO2 emissions load to be captured from the syngas stream, using the conventional, well proven and cost effective amine scrubbing technology. Such 85% or better CO2 capture is much greater than the 55% to 60% maximum possible using conventional steam reformer based hydrogen plant technology. As CO2 recovery from high pressure syngas stream is much easier and cost effective as compared to that from low pressure reformer furnace flue gases, a major cost benefit for equivalent CO2 recovery results with the present invention. | 02-18-2010 |
| 20090221768 | METHOD FOR THE ESTERIFICATION OF TEREPHTALIC ACID WITH BUTANEDIOL, METHOD FOR THE MANUFACTURE OF POLYBUTYLENE TEREPHTALATE AND A DEVICE THEREFOR - The present invention relates to an improved method for the esterification of terephthalic acid with 1,4-butanediol, an improved method for the manufacture of polybutylene terephtalate as well as reactors and devices that are suited for the application in this method. | 09-03-2009 |
| 20090105356 | PROCESS AND PLANT FOR PRODUCING SYNTHESIS GAS - When producing synthesis gas from a starting material containing hydrocarbons, in particular natural gas, a feed stream of the starting material is divided into a first partial stream and a second partial stream. The first partial stream is supplied to a steam reformer ( | 04-23-2009 |
