| Patent application number | Description | Published |
|---|
| 20080314801 | Process for Enhancement of the Selectivity of Physically Acting Solvents Used for the Absorption of Gas Components from Industrial Gases - The invention relates to a method for recovering absorbed hydrocarbon components while absorbing acid gases from technical gases, as for example a natural gas, by means of physically active absorption agents, wherein the inventive method consists in increasing the pressure of a loaded absorption agent extracted from an adsorption device, in adding said loaded absorption agent to the top of a rectification column which consist of a lower feeding stove and of one or several lateral stoves operating at a pressure slightly greater than the absorption column pressure, in adjusting an equilibrium is said rectification column in such a way that the acid gas concentration in the absorbent agent increases in the direction away from the bottom of the column and the hydrocarbon concentration decreases in said direction, in extracting a heated hydrocarbon-poor and acid gas component-rich absorption agent from the bottom of the column and in transferring said agent to an acid gas desorption device, in extracting a hydrocarbon-poor and acid gas component-rich recycling gas from the top of the rectification column, in cooling said recycling gas in a recycling gas cooler to a temperature of a service gas directed in the absorption device and in transferring said recycling gas directly to the absorption device or in mixing it with the service gas. | 12-25-2008 |
| 20090087366 | Solvent for Separating Acid Gas Components from Technical Gases - The invention relates to the use of a liquid, containing 0.1 to 100% of an amine or several amines of formula H | 04-02-2009 |
| 20090199712 | Method and Device for the Absorption of Acid Gas From Natural Gas - A method and a device for the absorption of pressurised natural gas containing at least hydrogen sulphide and carbon dioxide, using a physically active absorption agent. The natural gas containing acid gas is first conveyed to an absorption column, where it is directly contacted with the physical detergent, and the physical detergent absorbs the acid gas, leaving only a residue. The charged detergent is conveyed to a stripping column, the working pressure being further reduced. The residue of the released acid gas from the detergent is desorbed in said stripping column. The detergent thus regenerated is returned, at least in part, to the absorption column. The acid gas leaving the first separator is conveyed to another absorption column, in which the part of the released acid gas containing predominately hydrogen sulphide is reabsorbed with regenerated detergent and mixed with the charged detergent from the first separator. The remaining acid gas not reabsorbed from the absorption column downstream of the first separator, is recovered as stripping gas. Said stripping gas is used in the stripping column for removing the hydrogen sulphide from the detergent supplied to the stripping column. The finely regenerated solvent is divided into two partial flows, one of which is conveyed to the absorption column downstream of the first separator stage while the other is conveyed to the absorption column in the flow of natural gas. | 08-13-2009 |
| 20100011957 | Methods for Depleting Hydrogen Sulfide in Natural Gas from the Exploitation of Crude Oil/Natural Gas Mixtures - The invention relates to a method for depleting hydrogen sulphide in natural gas from the exploitation of crude oil/natural gas mixtures containing acid gas, during which the pressure of highly pressurized crude oil/natural gas mixture is firstly reduced to a pressure of 70 to 130 bar, preferably 90 bar, the outgassing crude gas is separated from the crude oil and crude gas is cooled, whereby the liquid phase condensing during the cooling of the crude gas is removed, the outgassed crude gas is, after cooling and without further measures of reducing pressure, subjected to a gas scrubbing, which absorbs a large portion of the H | 01-21-2010 |
| 20100269693 | METHOD OF REMOVING ACIDIC GAS COMPONENTS FROM A GAS MIXTURE - A pressurized gaseous mixture acidic gas and a useful gas is directly in a first absorption column with a physically acting absorption agent. Then the absorption agent loaded with the acid gas and useful gas is subdivided into first and second streams. The first stream is fed directly to a recycle flash container and there decompressed to reclaim the useful gas, extract the acidic gas from the absorption agent, and form a recycled gas containing the useful gas and acidic gas. The second stream is through a second absorption column to the recycle flash container. Some of the recycled gas from the recycle flash container is compressed and fed through the second absorption column so as to therein directly contact the second stream, and then the recycle gas that has passed through the second absorption column and contacted the second stream is returned to the gaseous mixture. | 10-28-2010 |
| 20110041550 | PROCESS AND APPARATUS FOR THE SEPARATION OF LIGHT-BOILING COMPONENTS FROM HYDROCARBON MIXTURES - A process and apparatus for the separation of a feed mixture into higher-boiling and lower boiling fractions in a continuously operated distillation apparatus uses at least one inlet pipe for feeding feed mixtures, an outlet for the lower-boiling fraction, an outlet for the higher-boiling fraction and a heating device. The distillation apparatus includes at least two condensation stages, each of a different temperature level, the condensation stages upstream in direction of the vapour flow having a higher temperature level than the downstream stages. Separation-effective internals are installed between the condensation stages, partial condensation taking place in the condensation stages, partial amounts that have not condensed in these stages being fed to downstream separation-effective internals or condensation stages of lower temperature level and partial amounts that have condensed are passed via separation-effective internals in direction of the outlet means for the higher-boiling fraction. A basically vaporous fluid is obtained at the condensation stage of the lowest temperature level, where it partially condenses, the uncondensed part of the fluid being fed to the outlet for the lower-boiling fraction and the condensed part being passed to a section of the distillation apparatus which is upstream of the condensation stage having the lowest temperature level. The condensation stage of the lowest temperature level having a temperature of below −40 ° C. | 02-24-2011 |
| 20110088554 | PROCESS FOR REMOVING ACID GASES FROM A GAS STREAM - Process for removing acid gases from a gas stream, in particular from a natural gas stream, synthesis gas stream or the like, wherein the acid gases are absorbed from the gas stream by at least one absorbent. The absorbent used is a mixture of a physical scrubbing medium, a chemical scrubbing medium and water. The absorbent comprises more than 60% by weight of the physical scrubbing medium, wherein the physical scrubbing medium used is a morpholine derivative and a chemical scrubbing medium based on at least one aliphatic amine compound is used. | 04-21-2011 |
| 20110118366 | METHOD FOR OPERATING A FISCHER-TROPSCH SYNTHESIS - The invention relates to a method and a system for operating a Fischer-Tropsch synthesis, wherein a feed gas comprising CO and H | 05-19-2011 |
