| Patent application number | Description | Published |
|---|
| 20080196583 | PROCESS FOR RECYCLING OF TOP GAS DURING CO2 SEPARTION - An improved process for the separation of carbon dioxide from the flue gas of an oxy-combustion power plant is provided. The flue gas is compressed, cleaned, cooled and dried. This flue gas stream contains carbon dioxide and oxygen, and is sent to a column. This column may be a distillation column or a stripping column. This column separates the inlet stream into a top gas stream and a bottom liquid stream. The top gas from the column is combined with the inlet stream. | 08-21-2008 |
| 20080196584 | PROCESS FOR FEED GAS COOLING IN REBOILER DURING CO2 SEPARATION - An improved process for the separation of carbon dioxide from the flue gas of an oxy-combustion power plant is provided. An inlet stream containing carbon dioxide and oxygen is at least partially condensed in the reboiler of a stripping column. The condensed inlet stream is then separated in a separator, thereby producing a first liquid stream and a first gas stream. The first liquid stream is then separated into a top gas stream and a bottom liquid stream in the stripping column. The top gas stream is then warmed by indirect heat exchange in the heat exchanger. The warmed top gas stream is then recycled and combined with the inlet stream | 08-21-2008 |
| 20080196585 | Process for Vaporizing the Product CO2 at Two Different Pressures during CO2 Separation - An improved process for the separation of carbon dioxide from the flue gas of an oxy-combustion power plant is provided. At least a first product stream and a second product stream are separated from a flue gas stream, wherein the pressure of the first product stream and the pressure of the second product stream are different. The first product stream is warmed and vaporized. The second product stream is then warmed and vaporized | 08-21-2008 |
| 20080196587 | CO2 SEPARATION APPARATUS AND PROCESS FOR OXY-COMBUSTION COAL POWER PLANTS - An improved process for the separation of carbon dioxide from the flue gas of an oxy-combustion power plant is provided. The flue gas is compressed, cleaned, cooled and dried. This clean, compressed dry flue gas is then further cooled, partially condensed and separated into liquid and vapor streams. The liquid streams, which contain a high concentration of carbon dioxide, are vaporized, compressed and exported to an end user. The vapor streams are heated and expanded, in order to extract useable energy. At least two expanders are used to extract this energy, with an intermediate warming step. | 08-21-2008 |
| 20090007595 | Low Temperature Air Separation Process for Producing Pressurized Gaseous Product - A compressed air stream is cooled in an exchanger to form a compressed cooled air stream. The stream is then cryogenically compressed in a first compressor to form a first pressurized gas stream. The first pressurized gas stream is further cooled in the exchanger, cryogenically compressed in a second compressor, and then it is cooled and partially liquefied. The cooled and partially liquefied product is then fed to a system of distillation columns. A liquid product is removed from the system of distillation columns. This product is then pressurized, vaporized and warmed in the exchanger to yield pressurized gaseous product. | 01-08-2009 |
| 20090013717 | PROCESS AND APPARATUS FOR THE SEPARATION OF A GASEOUS MIXTURE - A process for separating carbon dioxide from a carbon dioxide containing fluid comprises the steps of: compressing the fluid in a compressor to form a compressed fluid, drying at least part of the compressed fluid to form a compressed and dried fluid, cooling at least part of the compressed and dried fluid to form a compressed, dried and cooled fluid, separating the compressed, dried and cooled fluid at a temperature lower than 0° C. into a carbon dioxide rich stream, a carbon dioxide lean stream and at least one intermediate purity liquid stream having a carbon dioxide purity lower than that of the carbon dioxide rich stream and higher than that of the carbon dioxide lean stream, expanding at least one intermediate purity liquid stream to produce at least one expanded stream using at least one expanded stream to cool the compressed and dried fluid and recycling at least part of the expanded stream. | 01-15-2009 |
| 20090013868 | PROCESS AND APPARATUS FOR THE SEPARATION OF A GASEOUS MIXTURE - A process for separating carbon dioxide from a compressed, dried and cooled carbon dioxide containing fluid comprises separating the fluid into at least a carbon dioxide enriched stream, and a carbon dioxide depleted stream, expanding at least part of the carbon dioxide lean stream in an expander, compressing a process stream wherein the power for the compression step is at least in part provided by the power generated by the expander. | 01-15-2009 |
| 20090013871 | PROCESS AND APPARATUS FOR THE SEPARATION OF A GASEOUS MIXTURE - A process for separating carbon dioxide from a fluid containing carbon dioxide, NO | 01-15-2009 |
| 20090178408 | THERMAL INTEGRATION OF OXYGEN PLANTS - A process for the integration of a cryogenic air separation plant and an oxy-combustion power plant is presented. This process includes producing a pressurized nitrogen stream and a pressurized oxygen stream within said cryogenic air separation plant. This process also includes burning a fuel stream thereby generating a steam stream from a boiler feed water stream, wherein said stream is used for work expansion within said oxy-combustion power plant. This process also includes heating said pressurized nitrogen stream and said pressurized oxygen stream with a compressed air stream that is extracted from the air compressor of said cryogenic air separation plant, thereby forming a heated pressurized nitrogen stream and a heated pressurized oxygen stream. This process also includes burning a fuel stream with said heated pressurized oxygen stream to produce a flue gas stream. This process also includes heating said heated pressurized nitrogen stream to form a hot pressurized nitrogen stream. This process also includes work expanding said hot pressurized nitrogen stream to a lower pressure thereby forming a hot exhaust nitrogen stream and recovering energy. And this process also includes heating said boiler feed water stream by indirect heat exchange with said hot exhaust nitrogen stream. | 07-16-2009 |
| 20100077796 | Hybrid Membrane/Distillation Method and System for Removing Nitrogen from Methane - A hybrid gas separation membrane/cryogenic distillation method and system produces high purity gaseous methane from a gas mixture containing a majority of methane and a minority of nitrogen. | 04-01-2010 |
| 20100206165 | Method For The Purification Of A Gas Containing CO2 Using An Adsorption Purification Unit - A method for the purification of a feed gas stream containing CO | 08-19-2010 |
| 20100206202 | Process and Apparatus For The Separation of A Gaseous Mixture - A process for separating carbon dioxide from a fluid containing carbon dioxide, NO | 08-19-2010 |
| 20100263529 | Method For The Purification Of A Gas Containing CO2 - A method for the purification of a feed gas stream containing at least CO | 10-21-2010 |
| 20110146343 | Process And Apparatus For The Separation Of Air By Cryogenic Distillation - A process for the cryogenic separation of air using a multiple column distillation system comprising at least a higher pressure column (“HP column”) and a lower pressure column (“LP column”), comprising: feeding cooled feed air to the high pressure column for separation into high pressure nitrogen-enriched overhead vapor and crude liquid oxygen; feeding at least one low pressure column feed stream comprising nitrogen and oxygen to the low pressure column for separation into nitrogen-rich overhead vapor and liquid oxygen; refluxing the low pressure column with a liquid stream from or derived from the high pressure column; feeding expanded air to an auxiliary separation column for separation into auxiliary column nitrogen-rich overhead vapor and oxygen-rich liquid and removing the nitrogen rich overhead vapour as a product stream; feeding bottom liquid from the auxiliary column to an intermediate location of the low pressure column; and refluxing the auxiliary column with a nitrogen rich liquid stream from or derived from the HP column. | 06-23-2011 |
| 20110146344 | Process And Apparatus For The Separation Of Air By Cryogenic Distillation - In a process for the production of nitrogen and of oxygen enriched liquid by separation of air by cryogenic distillation, a first stream of air is sent to an exchanger to form a first cooled air stream, the first cooled air stream is sent to a bottom reboiler of a column, condensed air is sent from the bottom reboiler to a top condenser of the column, vaporized air is sent from the top condenser to a first compressor, air is sent from the first compressor to the column, air is sent to a second compressor and from the second compressor to the exchanger to produce a cooled second air stream, the cooled second air stream is sent to a first turboexpander and from the turbo expander to the column, bottom liquid is removed from the column and gaseous nitrogen is removed from the top of the column. | 06-23-2011 |
