CA2685511A1 - Use of a mixture of carbon dioxide and nitrogen as an inerting and flow medium in powder injection systems for pulverized coal gasification under pressure - Google Patents
Use of a mixture of carbon dioxide and nitrogen as an inerting and flow medium in powder injection systems for pulverized coal gasification under pressure Download PDFInfo
- Publication number
- CA2685511A1 CA2685511A1 CA002685511A CA2685511A CA2685511A1 CA 2685511 A1 CA2685511 A1 CA 2685511A1 CA 002685511 A CA002685511 A CA 002685511A CA 2685511 A CA2685511 A CA 2685511A CA 2685511 A1 CA2685511 A1 CA 2685511A1
- Authority
- CA
- Canada
- Prior art keywords
- nitrogen
- carbon dioxide
- mixture
- powder injection
- pulverized coal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/48—Apparatus; Plants
- C10J3/50—Fuel charging devices
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
- C10J3/78—High-pressure apparatus
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2200/00—Details of gasification apparatus
- C10J2200/15—Details of feeding means
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2200/00—Details of gasification apparatus
- C10J2200/15—Details of feeding means
- C10J2200/156—Sluices, e.g. mechanical sluices for preventing escape of gas through the feed inlet
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0913—Carbonaceous raw material
- C10J2300/093—Coal
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0953—Gasifying agents
- C10J2300/0969—Carbon dioxide
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
- Carbon And Carbon Compounds (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
The invention relates to a powder injection system for use in pulverized coal gasification under pressure, which system comprises a reservoir (BK) for stocking the pulverized coal, a plurality of powder injection tubes (SES) and a metering unit (DG). According to the invention, a mixture of nitrogen N2 / carbon dioxide CO2 is fed to the components that are at operating pressure, namely the powder injection tube and the metering unit, as the inerting and flow medium or fluidizing medium. The nitrogen N2 / carbon dioxide CO2 mixture-carrying components are heated in such a manner that the temperature is above the threshold of the diphase range. The method according to the invention allows reduction of the nitrogen content in the product gas, which nitrogen is caused by the powder injection system, especially when used in pulverized coal gasification under pressure to produce a synthesis gas for the production of different hydrocarbons.
Description
Description Use of a mixture of carbon dioxide and nitrogen as an inerting and flow medium in powder injection systems for pulverized coal gasification under pressure The subject matter of the application relates to a method for operating a powder injection system for pulverized coal gasification under pressure and to an arrangement for powder injection for pulverized coal gasification under pressure with the features of claims 1 or 4.
Nitrogen from the air separation unit is usually used as an inerting and flow medium in pneumatically-operated powder injection systems of installations for pulverized coal gasification under pressure. This method variant has proven itself both in injection systems for powder injection in high-level ovens and also for pulverized coal gasification under pressure and is largely technically mature. Advantageously in such systems the dust is already removed in special filter vessels from the expansion gas of the powder injection transfer tubes and also from the surplus gas arising under specific operating conditions in the metering vessel under increased operating pressures. Although the powder injection systems based on pneumatic compression flow conveyance operate with very high loading conditions, the nitrogen injected into the gasification systems exceeds the permitted limits in many cases. The reason for this is also the increasing process pressure in most applications. For pulverized coal gasification under pressure, in particular with the objective of synthesis gas generation for the production of different hydrocarbons, the flow is produced after a restriction of the nitrogen component in the product gas.
The problem underlying the subject matter of the application is that of developing a method or an arrangement of a powder injection system for pulverized coal gasification under pressure such that the nitrogen injection into the subsequent gasification system and the disadvantages associated therewith will be restricted.
The problem is solved by the features of claim 1 or 4.
Inventively the flow after limitation of the nitrogen component in the product gas from the pulverized coal gasification under pressure will be taken into account by using mixtures of carbon dioxide and nitrogen as an inerting and flow medium in the powder injection system. The sections of the plant operated with the nitrogen / carbon dioxide mixture are heated up to the point at which a temperature above the boundary to the two-phase region is produced.
Advantageously the invention makes use of the fact that not all components have to be operated with the nitrogen / carbon dioxide mixture, but instead heated-up nitrogen is fed to the reservoir as inerting and dispersal medium - with reduced outlay compared to carbon dioxide.
In a particular embodiment of the invention the nitrogen N2 /
carbon dioxide C02 mixture ratio is dimensioned according to the highest allowable proportion of nitrogen at the flow control unit to the reactor as a measure of the highest allowable injection of nitrogen into the product gas of the gasification system. In this case the required heating effort for fault-free operation of the powder injection system is lowered as the proportion of nitrogen in the mixture increases and thus the partial pressure of the carbon reduces.
Advantageous developments of the subject matter of the application are specified in the subclaims.
Nitrogen from the air separation unit is usually used as an inerting and flow medium in pneumatically-operated powder injection systems of installations for pulverized coal gasification under pressure. This method variant has proven itself both in injection systems for powder injection in high-level ovens and also for pulverized coal gasification under pressure and is largely technically mature. Advantageously in such systems the dust is already removed in special filter vessels from the expansion gas of the powder injection transfer tubes and also from the surplus gas arising under specific operating conditions in the metering vessel under increased operating pressures. Although the powder injection systems based on pneumatic compression flow conveyance operate with very high loading conditions, the nitrogen injected into the gasification systems exceeds the permitted limits in many cases. The reason for this is also the increasing process pressure in most applications. For pulverized coal gasification under pressure, in particular with the objective of synthesis gas generation for the production of different hydrocarbons, the flow is produced after a restriction of the nitrogen component in the product gas.
The problem underlying the subject matter of the application is that of developing a method or an arrangement of a powder injection system for pulverized coal gasification under pressure such that the nitrogen injection into the subsequent gasification system and the disadvantages associated therewith will be restricted.
The problem is solved by the features of claim 1 or 4.
Inventively the flow after limitation of the nitrogen component in the product gas from the pulverized coal gasification under pressure will be taken into account by using mixtures of carbon dioxide and nitrogen as an inerting and flow medium in the powder injection system. The sections of the plant operated with the nitrogen / carbon dioxide mixture are heated up to the point at which a temperature above the boundary to the two-phase region is produced.
Advantageously the invention makes use of the fact that not all components have to be operated with the nitrogen / carbon dioxide mixture, but instead heated-up nitrogen is fed to the reservoir as inerting and dispersal medium - with reduced outlay compared to carbon dioxide.
In a particular embodiment of the invention the nitrogen N2 /
carbon dioxide C02 mixture ratio is dimensioned according to the highest allowable proportion of nitrogen at the flow control unit to the reactor as a measure of the highest allowable injection of nitrogen into the product gas of the gasification system. In this case the required heating effort for fault-free operation of the powder injection system is lowered as the proportion of nitrogen in the mixture increases and thus the partial pressure of the carbon reduces.
Advantageous developments of the subject matter of the application are specified in the subclaims.
The subject matter of the application is explained in greater detail below as an exemplary embodiment in a scope required for understanding the process which refers to a Figure. The figure shows:
Fig. 1 a basic diagram of an inventive pulverized coal-injection system A reservoir BK under ambient pressure and able to be heated up for supply of solid material FS, such as pulverized coal for example, is able to be supplied with heated nitrogen N2 as an inerting and dispersal medium. The solid material is able to be fed,via a flow device to one or more powder injection transfer tubes SES which are at a high operating pressure of for example 40 bar. The powder injection transfer tube is able to be fed a nitrogen N2 / carbon dioxide C02 mixture as an inerting and flow medium with a temperature above the boundary to the two-phase region at high operating pressure. In the upper area of the powder injection transfer tube the expansion gas is drained away, expanded via a multi-stage pressure relief facility mEV to ambient pressure and dedusted in a following filter F at ambient pressure. The solid material is transferred from the powder injection transfer tubes into the metering vessel DG by gravity flow via a suitably dimensioned downpipe. Between two and four powder injection transfer tubes are used in each powder injection system.
The nitrogen N2 / carbon dioxide C02 mixture is used as fluidization gas. A partial eddy layer is created by the fluidization gas in the bottom part of the metering vessel. In this process the pulverized coal is transferred from a bulk pulverized coal state into the eddy layer and thereby simultaneously put into the flow state. Since it has been ensured in the previous method steps that the gap volume of the bulk pulverized coal in metering vessel is filled with the nitrogen N2 / carbon dioxide COz mixture and the nitrogen N2 /
carbon dioxide C02 mixture is likewise used for the fluidization, the associated gas at the flow control unit to the reactor consists of this nitrogen N2 / carbon dioxide COz mixture.
The nitrogen N2 / carbon dioxide COz mixture is also used as injection gas. The injection gas is introduced into the powder flow lines. Injection gas feeds can be necessary to recognize faults of the powder feed to the reactor quickly enough.
Inventively it is proposed to employ a carbon dioxide-nitrogen mixture of the same composition in all method sections of the injection system to be operated at high-pressure, namely the powder injection transfer tube and the metering vessel.
To lessen the risks resulting from the incidence of liquid carbon dioxide when it is used as an inerting and flow medium in powder injection systems or to reduce the required heating effort for use of pure carbon dioxide, the method works with mixtures of the two inert gas components carbon dioxide and nitrogen.
Because of the thermodynamic properties of carbon dioxide however, a few special characteristics are to be noted in such cases. It is to be taken into account in particular that pure carbon dioxide at the desired process pressures of above 40 bar already reaches the boundary to the two-phase region at ambient temperature. To avoid this, in all process sections which will be operated at or above the required process pressures with carbon dioxide, sufficiently high operating temperatures are always to be guaranteed.
The mixing of the two inerting and flow media is created in a suitable manner and provided for use in the powder injection system. The problems resulting from the use of carbon dioxide as an inerting and flow gas or the heating effort required for the fault-free operation of the powder injection system will be reduced as the proportion of nitrogen in the mixture increases and thereby the partial pressure of the carbon dioxide decreases.
The permitted proportion of nitrogen in the mixture is produced from the already acceptable nitrogen injection into the product gas of the gasification system.
Typical mixture ratios of carbon dioxide / nitrogen are 75/25, 60/40, 50/50, 40/60 or 25/75.
The carbon dioxide / nitrogen mixture is already received at the plant boundary with a sufficiently high temperature. The cooling-down of the gas during its application, forwarding and also the method-specific use itself is to be counteracted by a suitable heating system.
It is of particular importance to keep the temperature of the pulverized coal created in the upstream dryer mill system at a sufficient high level right through to the flow control unit FLE in the reactor. For this reason the pulverized coal reservoir operating at ambient pressure and with nitrogen also applied to it as an inerting and dispersal medium is also heated Likewise the supplied nitrogen is heated up in order to avoid powder cooling e.g. during long plant shutdowns.
Inventively an end-to-end heating in the gas storage, forwarding and metering process sections themselves is provided.
To exclude problems from reduced life time of filter elements through incidence of liquid carbon dioxide as a result of polytropic cooling-down of the medium during transfer tube expansion, the dedusting of the expansion gas under increased operating pressure is dispensed with.
The pressure of the slightly powder-laden expansion gas is relieved via multi-stage expansion facilities mEV. The dedusting of the expansion gas is subsequently undertaken in a filter F operating at ambient pressure.
The pipe section between powder injection transfer tube and pressure relief facility is heated, to compensate for the polytropic expansion cold and maintain the permitted operating conditions of the expansion filter.
The pressure relief facility is embodied so that the expansion noises are reduced at the same time. So-called silencer plates known in specialist circles are used as a pressure relief facility for example. These bring about a reduction of the expansion noises on the one hand by multi-stage expansion and on the other hand by dividing the hole cross section required into a plurality of smaller holes. A wear-protected control valve with downstream silencer is also able to be used If these measures are not sufficient additional soundproofing measures can be used, such as by means of a sound-deadening sheathing for example.
Fig. 1 a basic diagram of an inventive pulverized coal-injection system A reservoir BK under ambient pressure and able to be heated up for supply of solid material FS, such as pulverized coal for example, is able to be supplied with heated nitrogen N2 as an inerting and dispersal medium. The solid material is able to be fed,via a flow device to one or more powder injection transfer tubes SES which are at a high operating pressure of for example 40 bar. The powder injection transfer tube is able to be fed a nitrogen N2 / carbon dioxide C02 mixture as an inerting and flow medium with a temperature above the boundary to the two-phase region at high operating pressure. In the upper area of the powder injection transfer tube the expansion gas is drained away, expanded via a multi-stage pressure relief facility mEV to ambient pressure and dedusted in a following filter F at ambient pressure. The solid material is transferred from the powder injection transfer tubes into the metering vessel DG by gravity flow via a suitably dimensioned downpipe. Between two and four powder injection transfer tubes are used in each powder injection system.
The nitrogen N2 / carbon dioxide C02 mixture is used as fluidization gas. A partial eddy layer is created by the fluidization gas in the bottom part of the metering vessel. In this process the pulverized coal is transferred from a bulk pulverized coal state into the eddy layer and thereby simultaneously put into the flow state. Since it has been ensured in the previous method steps that the gap volume of the bulk pulverized coal in metering vessel is filled with the nitrogen N2 / carbon dioxide COz mixture and the nitrogen N2 /
carbon dioxide C02 mixture is likewise used for the fluidization, the associated gas at the flow control unit to the reactor consists of this nitrogen N2 / carbon dioxide COz mixture.
The nitrogen N2 / carbon dioxide COz mixture is also used as injection gas. The injection gas is introduced into the powder flow lines. Injection gas feeds can be necessary to recognize faults of the powder feed to the reactor quickly enough.
Inventively it is proposed to employ a carbon dioxide-nitrogen mixture of the same composition in all method sections of the injection system to be operated at high-pressure, namely the powder injection transfer tube and the metering vessel.
To lessen the risks resulting from the incidence of liquid carbon dioxide when it is used as an inerting and flow medium in powder injection systems or to reduce the required heating effort for use of pure carbon dioxide, the method works with mixtures of the two inert gas components carbon dioxide and nitrogen.
Because of the thermodynamic properties of carbon dioxide however, a few special characteristics are to be noted in such cases. It is to be taken into account in particular that pure carbon dioxide at the desired process pressures of above 40 bar already reaches the boundary to the two-phase region at ambient temperature. To avoid this, in all process sections which will be operated at or above the required process pressures with carbon dioxide, sufficiently high operating temperatures are always to be guaranteed.
The mixing of the two inerting and flow media is created in a suitable manner and provided for use in the powder injection system. The problems resulting from the use of carbon dioxide as an inerting and flow gas or the heating effort required for the fault-free operation of the powder injection system will be reduced as the proportion of nitrogen in the mixture increases and thereby the partial pressure of the carbon dioxide decreases.
The permitted proportion of nitrogen in the mixture is produced from the already acceptable nitrogen injection into the product gas of the gasification system.
Typical mixture ratios of carbon dioxide / nitrogen are 75/25, 60/40, 50/50, 40/60 or 25/75.
The carbon dioxide / nitrogen mixture is already received at the plant boundary with a sufficiently high temperature. The cooling-down of the gas during its application, forwarding and also the method-specific use itself is to be counteracted by a suitable heating system.
It is of particular importance to keep the temperature of the pulverized coal created in the upstream dryer mill system at a sufficient high level right through to the flow control unit FLE in the reactor. For this reason the pulverized coal reservoir operating at ambient pressure and with nitrogen also applied to it as an inerting and dispersal medium is also heated Likewise the supplied nitrogen is heated up in order to avoid powder cooling e.g. during long plant shutdowns.
Inventively an end-to-end heating in the gas storage, forwarding and metering process sections themselves is provided.
To exclude problems from reduced life time of filter elements through incidence of liquid carbon dioxide as a result of polytropic cooling-down of the medium during transfer tube expansion, the dedusting of the expansion gas under increased operating pressure is dispensed with.
The pressure of the slightly powder-laden expansion gas is relieved via multi-stage expansion facilities mEV. The dedusting of the expansion gas is subsequently undertaken in a filter F operating at ambient pressure.
The pipe section between powder injection transfer tube and pressure relief facility is heated, to compensate for the polytropic expansion cold and maintain the permitted operating conditions of the expansion filter.
The pressure relief facility is embodied so that the expansion noises are reduced at the same time. So-called silencer plates known in specialist circles are used as a pressure relief facility for example. These bring about a reduction of the expansion noises on the one hand by multi-stage expansion and on the other hand by dividing the hole cross section required into a plurality of smaller holes. A wear-protected control valve with downstream silencer is also able to be used If these measures are not sufficient additional soundproofing measures can be used, such as by means of a sound-deadening sheathing for example.
Claims (4)
1. A method for operating a powder injection system for pulverized coal gasification under pressure, comprising a reservoir (BK) for supplying the pulverized coal, to which ambient pressure is applied, a number of powder injection tubes (SES) and a metering vessel (DG), to which high operating pressure is applied, as a result of which the reservoir is heated up, heated nitrogen N2 is fed to the reservoir as an inerting and dispersal medium, a nitrogen N2 / carbon dioxide CO2 mixture is fed to the powder injection transfer tube as an inerting and flow medium and the nitrogen N2 / carbon dioxide CO2 mixture is fed to the metering vessel as a fluidization medium.
2. The method as claimed in claim 1 characterized in that the supplied nitrogen N2 / carbon dioxide CO2 mixture is heated up to a temperature above the boundary to the two-phase region at high process pressure (in the high-pressure region of the system).
3. A method as claimed in one of the existing claims characterized in that the nitrogen N2 / carbon dioxide CO2 mixture ratio is dimensioned according to the highest permitted proportion of nitrogen at the flow control unit to the reactor in accordance with the highest permissible injection of nitrogen in the product gas of the gasification system.
4. An arrangement for powder injection for pulverized coal gasification under pressure, comprising a reservoir to which ambient pressure is applied for supplying the pulverized coal, an injection tube to which a high operating pressure can be applied, a metering vessel to which a high operating pressure can be applied with the reservoir able to be heated up, heated nitrogen able to be fed to the reservoir as an inerting and loosening medium, a nitrogen N2 / carbon dioxide CO2 mixture is able to be fed to the powder injection transfer tube as an inerting and flow medium, the nitrogen N2 / carbon dioxide CO2 mixture is able to be fed to the metering vessel as a fluidization medium.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007020332A DE102007020332A1 (en) | 2007-04-30 | 2007-04-30 | Use of a mixture of carbon dioxide and nitrogen as an inerting and conveying medium in Staubeintragsystemen for pulverized coal gasification |
| DE102007020332.4 | 2007-04-30 | ||
| PCT/EP2008/054713 WO2008132071A2 (en) | 2007-04-30 | 2008-04-18 | Use of a mixture of carbon dioxide and nitrogen as an inerting and flow medium in powder injection systems for use in pulverized coal gasification under pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2685511A1 true CA2685511A1 (en) | 2008-11-06 |
Family
ID=39760500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002685511A Abandoned CA2685511A1 (en) | 2007-04-30 | 2008-04-18 | Use of a mixture of carbon dioxide and nitrogen as an inerting and flow medium in powder injection systems for pulverized coal gasification under pressure |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20100126068A1 (en) |
| EP (1) | EP2142621A2 (en) |
| CN (1) | CN101679886A (en) |
| AU (1) | AU2008244398A1 (en) |
| CA (1) | CA2685511A1 (en) |
| DE (1) | DE102007020332A1 (en) |
| WO (1) | WO2008132071A2 (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008060893A1 (en) * | 2008-12-09 | 2010-06-17 | Uhde Gmbh | Method and device for supplying a reactor for the production of raw synthesis gas |
| DE102009006384A1 (en) * | 2009-01-28 | 2010-08-19 | Uhde Gmbh | Method for supplying an entrainment gasification reactor with fuel from a reservoir |
| DE102009048931B4 (en) * | 2009-10-10 | 2014-06-18 | Linde Ag | Dosing system, dense phase conveying system and method for feeding dusty bulk material |
| DE102009048961B4 (en) | 2009-10-10 | 2014-04-24 | Linde Ag | Dosing device, dense phase conveying system and method for feeding dusty bulk material |
| US8512446B2 (en) * | 2010-07-22 | 2013-08-20 | General Electric Company | High pressure conveyance gas selection and method of producing the gas |
| CN103130289B (en) * | 2012-09-28 | 2014-07-02 | 天津晟远环境有限公司 | Coal gasification chilling grey water high pressure flash evaporation decompression buffering device |
| DE102012217890B4 (en) | 2012-10-01 | 2015-02-12 | Siemens Aktiengesellschaft | Combination of pressure charging and metering for continuous delivery of fuel dust into an entrainment gasification reactor over long distances |
| CN102927579B (en) * | 2012-11-09 | 2015-02-11 | 广东电网公司电力科学研究院 | Coal pulverizing system |
| CN103146435B (en) * | 2013-02-18 | 2014-09-03 | 上海锅炉厂有限公司 | High-moisture coal pulverizing, drying and conveying apparatus and method thereof |
| CN103275761A (en) * | 2013-06-25 | 2013-09-04 | 朱清敏 | Method and device for manufacturing chemical virgin gas with solid organic materials |
| CN107099338B (en) * | 2017-05-09 | 2020-10-20 | 新奥科技发展有限公司 | Pulverized coal conveying device, pulverized coal gasification system and pulverized coal conveying method thereof |
| JP7365575B2 (en) * | 2019-08-09 | 2023-10-20 | 三菱マテリアル株式会社 | Continuous ore feeding device |
| CN113350511B (en) * | 2021-03-01 | 2024-01-02 | 郎俊娜 | Novel sterile powder filling mixed shielding gas for injection |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3976442A (en) * | 1974-12-18 | 1976-08-24 | Texaco Inc. | Synthesis gas from gaseous CO2 -solid carbonaceous fuel feeds |
| US4191500A (en) * | 1977-07-27 | 1980-03-04 | Rockwell International Corporation | Dense-phase feeder method |
| JPH0649874B2 (en) * | 1982-08-25 | 1994-06-29 | 株式会社日立製作所 | Coal spouted bed gasification method |
| JPS60248794A (en) * | 1984-05-22 | 1985-12-09 | Fuji Standard Res Kk | Thermal decomposition of heavy oil |
| DE3809851A1 (en) * | 1988-03-24 | 1989-10-05 | Krupp Koppers Gmbh | METHOD FOR CONVEYING A FINE-GRAINED TO DUST-SHAPED FUEL IN A GASIFICATION REACTOR UNDER INCREASED PRESSURE |
| DE3810404A1 (en) * | 1988-03-26 | 1989-10-12 | Krupp Koppers Gmbh | METHOD AND DEVICE FOR PNEUMATICALLY CONVEYING A FINE-GRAINED TO DUST-SHAPED FUEL IN A GASIFICATION REACTOR UNDER INCREASED PRESSURE |
| JP2544584B2 (en) * | 1994-04-11 | 1996-10-16 | 株式会社日立製作所 | Coal gasifier and method of using coal gasifier |
| DE19742610A1 (en) * | 1997-09-26 | 1999-04-01 | Karl Prof Dr Ing Straus | Fuel and air handling process for fossil fuel combustion plant, e.g. brown coal power plant |
| DE202005021666U1 (en) * | 2005-08-24 | 2009-05-20 | Siemens Aktiengesellschaft | Device for generating synthesis gases by partial oxidation of ash-containing fuels under elevated pressure and quench cooling of the raw gas |
| DE102005047583C5 (en) * | 2005-10-04 | 2016-07-07 | Siemens Aktiengesellschaft | Method and device for the controlled supply of fuel dust into an entrained flow gasifier |
| DE102005048488C5 (en) * | 2005-10-07 | 2020-07-02 | Siemens Aktiengesellschaft | Method and device for high power entrained flow gasifiers |
-
2007
- 2007-04-30 DE DE102007020332A patent/DE102007020332A1/en not_active Ceased
-
2008
- 2008-04-18 CN CN200880014146A patent/CN101679886A/en active Pending
- 2008-04-18 AU AU2008244398A patent/AU2008244398A1/en not_active Abandoned
- 2008-04-18 CA CA002685511A patent/CA2685511A1/en not_active Abandoned
- 2008-04-18 WO PCT/EP2008/054713 patent/WO2008132071A2/en active Application Filing
- 2008-04-18 EP EP08736362A patent/EP2142621A2/en not_active Withdrawn
- 2008-04-18 US US12/598,065 patent/US20100126068A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| WO2008132071A2 (en) | 2008-11-06 |
| AU2008244398A1 (en) | 2008-11-06 |
| US20100126068A1 (en) | 2010-05-27 |
| EP2142621A2 (en) | 2010-01-13 |
| WO2008132071A3 (en) | 2008-12-31 |
| CN101679886A (en) | 2010-03-24 |
| AU2008244398A8 (en) | 2009-11-26 |
| DE102007020332A1 (en) | 2008-11-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2685511A1 (en) | Use of a mixture of carbon dioxide and nitrogen as an inerting and flow medium in powder injection systems for pulverized coal gasification under pressure | |
| US20100147413A1 (en) | Use of pure carbon dioxide as an inerting and flow medium in powder injection systems for use in pulverized coal gasification under pressure | |
| CN102154029B (en) | A high pressure feeder and method of operation to feed granular or fine materials | |
| US7731783B2 (en) | Continuous pressure letdown system | |
| US3775071A (en) | Method for feeding dry coal to superatmospheric pressure | |
| US20060243583A1 (en) | High pressure dry coal slurry extrusion pump | |
| AU2015310875B2 (en) | Pressurising of bulk material in lock hoppers | |
| US20090173005A1 (en) | Feed System | |
| JP5362422B2 (en) | LOCK HOPPER DEVICE, COAL GASIFICATION COMPACT POWER GENERATION SYSTEM AND OPERATION METHOD | |
| US9939152B2 (en) | Combination of pressure charging and metering for continuously supplying pulverized fuel into an entrained-flow gasifying reactor with long conveying distances | |
| JP4448499B2 (en) | Control method of pulverized coal injection into blast furnace | |
| CN110331006A (en) | A kind of control method and device that feed intake of hydrogasification technology | |
| CN113801699A (en) | Lock hopper, lock hopper pressurization system and powder pressurization conveying system | |
| DE102007020294A1 (en) | Co-use of carbon dioxide and nitrogen in a component of a dust injection system for pulverized coal gasification | |
| JP5763324B2 (en) | Gas hydrate manufacturing apparatus and gas hydrate manufacturing method | |
| KR20170002585A (en) | System and process for handling heavy oil residue | |
| CN216106798U (en) | Lock hopper, lock hopper pressurization system and powder pressurization conveying system | |
| Botros et al. | Activated Carbon Systems for Capturing Blowdown Hydrocarbons From Pipeline Facilities |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |