| Patent application number | Description | Published |
|---|
| 20100267915 | Reactor System and Process for the Catalytic Polymerization of Olefins, and the Use of Such Reactor System in Catalytic Polymerization of Olefins - The invention relates to a reactor system and process for the catalytic polymerization of olefin monomer and optionally comonomer(s), having one or more inlets for olefin monomer, catalyst, optionally for comonomer, chain growth controllers or chain transfer agents, and/or inert gas, an outlet for gas and an outlet for polymerized particles. The reactor system has at least one fluidized bed unit and at least one moving bed unit, wherein the fluidized bed unit has means for maintaining a fluidized bed in the fluidized bed unit and wherein the moving bed unit is provided with an inlet and an outlet which are connected to the fluidized bed unit, wherein the outlet of the moving bed unit is provided with means for displacing metered quantities of polymerized particles from the moving bed unit into the fluidized bed unit, and to the use of such reactor system. | 10-21-2010 |
| 20100267916 | Reactor System for the Catalytic Polymerization of Olefins Comprising Shielding Means and a Process and Use Thereof - The invention relates to a reactor system and process for the catalytic polymerization of olefin monomer and optionally comonomer(s), having one or more inlets for olefin monomer, catalyst, optionally for comonomer, chain growth controllers or chain transfer agents, and/or inert gas, an outlet for gas and an outlet for polymerization particles. The reactor system has at least one fluidized bed unit and at least one moving bed unit, wherein the fluidized bed unit has means for maintaining a fluidized bed in the fluidized bed unit and wherein the moving bed unit is provided with an inlet and an outlet which are connected to the fluidized bed unit, wherein in the fluidized bed unit is positioned shielding means such that via the outlet of the moving bed unit inflow of fluidization gas is inhibited and outflow of polymerization particles is allowed and to a process and use thereof. | 10-21-2010 |
| 20100273971 | Reactor System and Process for the Catalytic Polymerization of Olefins, and the Use of Such Reactor System in Catalytic Polymerization of Olefins - The invention relates to a reactor system for the catalytic polymerization of olefin monomer and optionally comonomer(s), having one or more inlets for olefin monomer, catalyst, optionally for comonomer, chain growth controllers or chain transfer agents, and/or inert gas, an outlet for gas and an outlet for polymerized particles. The reactor system has at least one fluidized bed unit and at least one moving bed unit, wherein the fluidized bed unit has means for maintaining a fluidized bed in the fluidized bed unit and wherein the moving bed unit is provided with an inlet and an outlet which are directly connected to the fluidized bed unit, wherein the outlet of the moving bed unit is provided with means for pneumatically displacing polymer particles from the moving bed unit into the fluidized bed unit. | 10-28-2010 |
| Patent application number | Description | Published |
|---|
| 20090260585 | Oxyfuel Combusting Boiler System and a Method of Generating Power By Using the Boiler System - Carbonaceous fuel is combusted with an oxidant gas in a furnace of a boiler system to generate power. Oxidant gas is fed into the furnace for combusting the fuel to produce exhaust gas, the exhaust gas is discharged from the furnace via an exhaust gas channel, a stream of feedwater is conveyed from a final economizer arranged in the exhaust gas channel to evaporating and superheating heat exchange surfaces arranged in the furnace and in the exhaust gas channel for converting the feedwater to superheated steam, the superheated steam is converted in a high-pressure steam turbine for generating power, a first portion of steam is extracted from the high-pressure steam turbine for preheating the feedwater, a second portion of steam is conveyed from the high-pressure steam turbine to reheating heat exchange surfaces arranged in the exhaust gas channel for generating reheated steam, and the reheated steam is expanded in an intermediate pressure steam turbine for generating power. The oxidant gas can be a mixture of substantially pure oxygen and recycled exhaust gas, and the ratio of the first and second portions of steam can be controlled to obtain a desired flue gas temperature in the exhaust gas channel downstream of the final economizer. | 10-22-2009 |
| 20090293782 | METHOD OF AND SYSTEM FOR GENERATING POWER BY OXYFUEL COMBUSTION - A method of generating power by oxyfuel combustion. Carbonaceous fuel and oxidant gas are fed into a furnace. In a first operating mode, the oxidant gas includes a stream of substantially pure oxygen conveyed from an oxygen supply for combusting the fuel with the oxygen to produce exhaust gas including mainly carbon dioxide and water. The exhaust gas is discharged from the furnace and is divided into a recycling portion and an end portion. The recycling portion is recycled to the furnace. Heat is transferred from the end portion to the stream of substantially pure oxygen by circulating a liquid heat transfer medium in a passage between an exhaust gas cooler and an oxygen heater. | 12-03-2009 |
| 20090297993 | Method of and System For Generating Power By Oxyfuel Combustion - An oxyfuel combustion system for generating power that includes a furnace for combusting carbonaceous fuel and substantially pure oxygen to produce exhaust gas including mainly carbon dioxide and water. An exhaust gas channel system discharges the exhaust gas from the furnace. The exhaust gas channel system has an upstream channel, an outlet channel and a gas recycling channel. The upstream channel recycles a recycling portion of the exhaust gas through the recycling channel to the furnace, and conveys an end portion of the exhaust gas through the outlet channel for final processing. The upstream channel is divided between a first divider piece and a connecting piece into a first exhaust gas channel portion and a second exhaust gas channel portion. A gas-gas heat exchanger arranged in the first exhaust gas channel portion transfers heat from exhaust gas in the first exhaust gas channel portion to gas in the gas recycling channel. A first economizer arranged in the second exhaust gas channel portion transfers heat from exhaust gas in the second exhaust gas channel portion to a flow of feedwater in a feedwater line, and a second economizer arranged in the exhaust gas channel system downstream of the connecting piece transfers heat from gas in the exhaust gas channel system to the flow of feedwater in the feedwater line. | 12-03-2009 |
| 20110000406 | Oxycombustion Circulating Fluidized Bed Reactor and Method of Operating Such a Reactor - An oxycombustion circulating fluidized bed reactor includes a reactor chamber and a gas distribution arrangement provided in a bottom section of the reactor chamber for introducing gas into the reactor chamber. The gas distributor arrangement includes a first gas feeding system and a second gas feeding system for introducing oxygen-rich gas into the reactor chamber. The first gas feeding system includes a first wind box and the second gas feeding system includes a second wind box. The first wind box has a common wall with the reactor chamber and the second wind box is arranged under the first wind box and has a common wall with the first wind box. | 01-06-2011 |
| 20110232544 | Oxycombustion Circulating Fluidized Bed Reactor, Method of Operating Such a Reactor and Method of Upgrading a Circulating Fluidized Bed Reactor - An oxycombustion circulating fluidized bed reactor includes a reactor chamber, and a gas distribution arrangement provided in the bottom section of the reactor chamber for introducing gas into the reactor chamber. A windbox chamber having gas introduction nozzles introduces gas from the windbox chamber into the reactor chamber and an has an inlet that opens into the windbox chamber. A first gas feeding system introduces gas into the windbox chamber, and a second gas feeding system introduces gas into the wind box chamber in the vicinity of at least one nozzle inlet. | 09-29-2011 |
