Patent application number | Description | Published |
20080229924 | Process for Treating a Loaded Solvent Stream Having a Time-Varying Concentration of Contaminant - The invention provides a process for treating a loaded solvent stream having a time-varying contaminant concentration, the process comprising the steps of: (a) providing a plurality of hold-up tanks; (h) feeding the loaded solvent stream in dependence on its contaminant concentration to one or more of the hold-up tanks and; (c) allowing lowed solvent to flow from the plurality of hold-up tanks to obtain a smoothed loaded solvent stream having a reduced time-varying contaminant concentration. The invention further provides a treating unit comprising a circuit for circulating a solvent stream, which circuit includes a device for smoothing contaminant peak concentrations, said device comprising a plurality of hold-up tanks each hold-up tank having at least one inlet and an outlet equipped with an outlet valve, the device further comprising an inlet distributor allowing the control of solvent flow to one or more of the hold-up tanks. | 09-25-2008 |
20090038992 | PROCESS FOR THE REMOVAL OF SULPHUR COMPOUNDS AND CARBON DIOXIDE FROM A GAS STREAM - A process for the removal of sulphur compounds and carbon dioxide from a gas stream comprising sulphur compounds including hydrogen sulphide and mercaptans, the process comprising the steps of: (a) washing the gas stream with an aqueous amine washing solution to remove hydrogen sulphide, any carbon dioxide, and part of the mercaptans to obtain a first purified gas stream; (b) passing the first purified gas stream through one or more molecular sieves to further remove mercaptans to obtain a second purified gas stream; (c) contacting the second purified gas stream and a hydrogen stream with a hydrogenation catalyst under hydrogenation conditions to obtain a third purified gas stream; and (d) passing the third purified gas stream through one or more hydrogen sulphide guard beds to obtain purified gas. The invention further provides a method for the start-up of such process. | 02-12-2009 |
20090047201 | Process for removing mercaptans from a gas stream comprising natural gas or an inert gas - The invention provides a process for removing mercaptans from a gas stream comprising natural gas or inert gas and mercaptans, the process comprising the steps of: (a) contacting a first gas stream comprising natural gas or inert gas and mercaptans with a hydrodesulphurisation catalyst in the presence of hydrogen in a hydrodesulphurisation unit to obtain a second gas stream comprising natural gas or inert gas, which is depleted of mercaptans and enriched in H | 02-19-2009 |
20090099269 | Removal of carbon dioxide from a gas stream - A process for the production of normally gaseous, normally liquid and optionally normally solid hydrocarbons from a light hydrocarbonaceous feed gas stream, which feed gas stream includes sulphur compounds and carbon dioxide, the process comprising the steps of: (i) removing at least most of the sulphur compounds from the feed gas stream by an aqueous amine process in one or more reactors, optionally followed by on or more further treatment processes; (ii) controlling where necessary the amount of carbon dioxide in the feed gas stream in step (i) so as to be in the range 0.25-2.0 v/v&, preferably 0.5-1.5 v/v %, of the processed feed stream; (iii) using the feed gas stream of step (ii) to provide synthesis gas; and (iv) catalytic converting the synthesis gas of step (iii) at an elevated temperature and pressure to obtain the normally gaseous, normally liquid and optionally normally solid hydrocarbons. | 04-16-2009 |
20090133535 | PROCESS FOR PRODUCTION OF ELEMENTAL IRON - The invention is directed to a process to prepare elemental iron by contacting an iron ore feed with a reducing gas to obtain iron and an off-gas. The reducing gas is prepared by performing the following steps | 05-28-2009 |
20090293731 | PROCESS FOR TREATING A LOADED SOLVENT STREAM HAVING A TIME-VARYING CONCENTRATION OF CONTAMINANT - The invention provides a process for treating a loaded solvent stream having a time-varying contaminant concentration, the process comprising the steps of: (a) providing a plurality of hold-up tanks; (b) feeding the loaded solvent stream in dependence on its contaminant concentration to one or more of the hold-up tanks and; (c) allowing loaded solvent to flow from the plurality of hold-up tanks to obtain a smoothed loaded solvent stream having a reduced time-varying contaminant concentration. | 12-03-2009 |
20100050812 | Process for Production of Elemental Iron - A process to prepare elemental iron by contacting an iron ore feed with a reducing gas at a pressure of between 1 and 10 bar to obtain iron and an off-gas includes preparing the reducing gas by performing the following steps: (a) partially oxidizing a mixture comprising a solid or liquid carbonaceous fuel and oxygen at a pressure of between 10 and 80 bar, thereby obtaining a gas comprising H | 03-04-2010 |
20120094337 | PROCESS FOR PRODUCING A PURIFIED SYNTHESIS GAS STREAM - The invention provides a process for producing a purified synthesis gas stream from a feed synthesis gas stream comprising contacting it with a water gas shift catalyst in a shift reactor to obtain a shifted synthesis gas stream enriched in H | 04-19-2012 |
20120095119 | PROCESS FOR PRODUCING PURIFIED SYNTHESIS GAS - Disclosed is a process for producing a purified synthesis gas stream from a feed synthesis gas stream. The process includes contacting the feed synthesis gas stream with a water gas shift catalyst in a shift reactor and in the presence of water to obtain a shifted synthesis gas stream enriched in H | 04-19-2012 |
20120096770 | PROCESS FOR PRODUCING A PURIFIED SYNTHESIS GAS STREAM - A process for producing a purified synthesis gas stream from a feed synthesis gas stream comprising besides the main constituents carbon monoxide and hydrogen also hydrogen sulphide,HCN and/or COS, the process comprising the steps of: (a) removing HCN and/or COS by contacting the feed synthesis gas stream with a water gas shift catalyst in a shift reactor in the presence of steam/water to react at least part of the carbon monoxide to carbon dioxide, and to obtain a synthesis gas stream depleted in HCN and/or in COS; (b) removing hydrogen sulphide in the synthesis gas stream depleted in HCN and/or in COS by contacting this gas stream in a H | 04-26-2012 |