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WO2008132069A2 - Utilisation de dioxyde de carbone pur comme gaz d'inertisation et de transport dans des systèmes d'alimentation en poussière pour la gazéification sous pression de poussière de charbon - Google Patents

Utilisation de dioxyde de carbone pur comme gaz d'inertisation et de transport dans des systèmes d'alimentation en poussière pour la gazéification sous pression de poussière de charbon Download PDF

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Publication number
WO2008132069A2
WO2008132069A2 PCT/EP2008/054706 EP2008054706W WO2008132069A2 WO 2008132069 A2 WO2008132069 A2 WO 2008132069A2 EP 2008054706 W EP2008054706 W EP 2008054706W WO 2008132069 A2 WO2008132069 A2 WO 2008132069A2
Authority
WO
WIPO (PCT)
Prior art keywords
carbon dioxide
pulverized coal
inerting
heated
dust
Prior art date
Application number
PCT/EP2008/054706
Other languages
German (de)
English (en)
Other versions
WO2008132069A3 (fr
Inventor
Manfred Schingnitz
Günter TIETZE
Original Assignee
Siemens Aktiengesellschaft
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to US12/598,069 priority Critical patent/US20100147413A1/en
Priority to DE112008000642T priority patent/DE112008000642A5/de
Priority to CN200880014340A priority patent/CN101679887A/zh
Publication of WO2008132069A2 publication Critical patent/WO2008132069A2/fr
Publication of WO2008132069A3 publication Critical patent/WO2008132069A3/fr

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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
    • 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
    • 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
    • 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

Definitions

  • the subject of the application relates to a method and an arrangement for operating a Staubeintragsystems for pulverized coal gasification with the features of claim 1 or 3.
  • Nitrogen from the air separation plant is usually used as the inerting and conveying medium in pneumatically operated dust introduction systems of pulverized coal gasification plants.
  • This process variant has proven itself both in entry systems for pulverized coal injection in blast furnaces and for pulverized coal gasification plants and is technically largely mature.
  • the flash gas of the dust entry locks as well as the excess gas accumulating under certain operating conditions in the metering vessel are already dedusted before being discharged into the atmosphere under increased operating pressures in special filter vessels.
  • the dust injection systems operate on the basis of pneumatic dense phase conveying with very high load ratios, the nitrogen input into the gasification systems in many cases exceeds the permissible limits. The reason for this is also the increasing process pressure in most applications.
  • pulverized coal gasification with the aim of generating synthesis gas for the production of different hydrocarbons there is the demand for a limitation of the nitrogen content in the product gas.
  • the subject of the application is the problem of further developing a method and an arrangement of a Staubeintragsystems for pulverized coal gasification such that the nitrogen input into the subsequent gasification system and the associated disadvantages are avoided.
  • the problem is solved by the features of claims 1 and 3, respectively.
  • the dust-entry lock is supplied as an inerting and conveying medium and the metering vessel as the fluidizing gas carbon dioxide CO 2.
  • the sections of the plant operated with essentially pure carbon dioxide are heated to such an extent that a temperature above the limit of the two-phase area is present.
  • the invention makes use of the fact that not all components must be operated with carbon dioxide, but the bunker as inerting and loosening medium - with reduced effort compared to carbon dioxide - heated nitrogen is supplied.
  • FIG. 1 shows a schematic representation of a coal dust entry system according to the invention
  • a standing under ambient pressure and heated bunker BK for storing solid FS such.
  • solid FS such as coal dust
  • N 2 heated as inerting and loosening medium heated nitrogen
  • the solid material can be fed to a dust entry lock SES that is under an operating high pressure of, for example, 40 bar.
  • the dust entry lock can be fed as an inerting and conveying medium carbon dioxide CO 2 with a temperature above the boundary to the two-phase region at high operating pressure.
  • the expansion gas is removed, depressurized via a multistage expansion device mEV to ambient pressure and dedusted in a subsequent filter F under ambient pressure.
  • the celebration- Substance transfer from the dust entry locks into the metering vessel DG takes place by gravity conveying via a sufficiently dimensioned downpipe. Two to four dust entry locks are used per dust entry system.
  • fluidizing gas carbon dioxide is used.
  • the fluidizing gas By the fluidizing gas, a partial fluidized bed is generated in the lower part of the dosing.
  • the pulverized coal is transferred from the state of a dust filling in the fluidized bed and thus at the same time in the conveying state. Since it was ensured by the preceding method steps that the void volume of the dust fill in the dosing is filled with carbon dioxide and carbon dioxide is used for the fluidization, the dust gas at the conveyor line inlet FLE to the reactor almost completely from this gas component.
  • Carbon dioxide is also used as injection gas.
  • the injection gas is introduced into the pulverized coal delivery lines. Injection gas supplies may be required to detect fast enough the carbon dust feed to the reactor.
  • the requirement for limitation of the nitrogen content in the product gas from pulverized coal gasification is taken into account by the use of carbon dioxide as the inerting and conveying medium in the coal dust introduction system.
  • thermodynamic properties of carbon dioxide because of the thermodynamic properties of carbon dioxide, however, here are some special considerations.
  • pure carbon dioxide at the desired process pressures above 40 bar already reaches the boundary to the two-phase region at ambient temperature.
  • sufficiently high operating temperatures must always be ensured in all process sections which are operated at or above the required process pressures with pure carbon dioxide.
  • the carbon dioxide is already taken over at the plant boundary with a sufficiently high temperature. The cooling of the gas in the storage, forwarding and the process-specific use itself is counteracted by a suitable heating system.
  • the pressure of the slightly dust-laden flash gas is reduced by multi-stage relaxation devices mEV.
  • the dedusting of the flash gas is then carried out in a working under ambient pressure filter F.
  • the pipe section between the lock and the expansion device is heated in order to compensate for the polytropic expansion cooling and to adhere to the permissible working conditions of the expansion filter.
  • the expansion device is designed so that at the same time the relaxation noise is reduced.
  • Silencerplates be used as a relaxation device known, for example, known in the art. This will ken a reduction of the relaxation noise on the one hand by multi-stage relaxation and on the other hand by splitting the total required bore cross section on a variety of smaller holes. It is also a wear-protected control valve with downstream Silencer used. If these measures are not sufficient, additional soundproofing measures can be used, for example by means of a sound-insulating sheathing.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Auxiliary Methods And Devices For Loading And Unloading (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

Dans un système d'alimentation en poussière destiné à la gazéification sous pression de poussière de charbon, qui comprend un réservoir (BK) de stockage de poussière de charbon, plusieurs sas d'alimentation en poussière (SES) et un mesureur (DG), les composants soumis à une haute pression de service, à savoir le sas d'alimentation en poussière et le mesureur, sont alimentés en dioxyde de carbone pur (CO2) comme gaz d'inertisation et de transport ou de fluidisation. Les composants d'alimentation en dioxyde de carbone sont chauffés, jusqu'à ce que la température se situe au-dessus de la limite de la zone diphasique. Pour un meilleur résultat, notamment lors de la gazéification sous pression de poussière de charbon à des fins de production de gaz de synthèse servant à la production de différents hydrocarbures, la présence de la fraction d'azote, due au système d'alimentation en poussière, dans le produit gazeux est évitée.
PCT/EP2008/054706 2007-04-30 2008-04-18 Utilisation de dioxyde de carbone pur comme gaz d'inertisation et de transport dans des systèmes d'alimentation en poussière pour la gazéification sous pression de poussière de charbon WO2008132069A2 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US12/598,069 US20100147413A1 (en) 2007-04-30 2008-04-18 Use of pure carbon dioxide as an inerting and flow medium in powder injection systems for use in pulverized coal gasification under pressure
DE112008000642T DE112008000642A5 (de) 2007-04-30 2008-04-18 Einsatz von reinem Kohlendioxid als Inertisierungs- und Fördermedium in Staubeintragsystem für die Kohlenstaubdruckvergasung
CN200880014340A CN101679887A (zh) 2007-04-30 2008-04-18 纯二氧化碳在用于煤粉加压气化的粉末进料系统中作为惰性化介质和输送介质的用途

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007020333A DE102007020333A1 (de) 2007-04-30 2007-04-30 Einsatz von reinem Kohlendioxid als Inertisierungs- und Fördermedium in Staubeintragsystemen für die Kohlenstaubdruckvergasung
DE102007020333.2 2007-04-30

Publications (2)

Publication Number Publication Date
WO2008132069A2 true WO2008132069A2 (fr) 2008-11-06
WO2008132069A3 WO2008132069A3 (fr) 2008-12-31

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PCT/EP2008/054706 WO2008132069A2 (fr) 2007-04-30 2008-04-18 Utilisation de dioxyde de carbone pur comme gaz d'inertisation et de transport dans des systèmes d'alimentation en poussière pour la gazéification sous pression de poussière de charbon

Country Status (4)

Country Link
US (1) US20100147413A1 (fr)
CN (1) CN101679887A (fr)
DE (2) DE102007020333A1 (fr)
WO (1) WO2008132069A2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102154029A (zh) * 2009-12-21 2011-08-17 南方服务有限公司 供给粒状或细粒材料的高压供给器和操作方法
US20110233471A1 (en) * 2008-12-09 2011-09-29 Uhde Gmbh Method and system for supplying a reactor for generating crude synthesis gas
CN102549116A (zh) * 2009-08-12 2012-07-04 蒂森克虏伯伍德有限公司 向气流床气化反应器供应含碳燃料的方法

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US8951315B2 (en) * 2008-11-12 2015-02-10 Exxonmobil Research And Engineering Company Method of injecting fuel into a gasifier via pressurization
DE102009006384A1 (de) 2009-01-28 2010-08-19 Uhde Gmbh Verfahren zur Versorgung eines Flugstromvergasungsreaktors mit Brennstoff aus einem Vorratsbehälter
DE102009006878A1 (de) 2009-01-30 2010-08-12 Uhde Gmbh Verfahren zur Ausschleusung des bei dem Betrieb einer Entstaubungsanlage für Rohrgas anfallenden Staubes
DE102009048931B4 (de) * 2009-10-10 2014-06-18 Linde Ag Dosieranlage, Dichtstromförderanlage und Verfahren zum Zuführen von staubförmigem Schüttgut
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DE102013018332A1 (de) * 2013-10-31 2015-04-30 Linde Aktiengesellschaft Vorrichtung zur Einbringung von festem organischen Einsatzmaterial in eine Vergasungsanlage
CN104194839B (zh) * 2014-09-01 2016-08-24 中科合成油工程股份有限公司 粉煤加压输送至加压气化炉的方法
CN107099338B (zh) * 2017-05-09 2020-10-20 新奥科技发展有限公司 粉煤输送装置、粉煤气化系统及其粉煤输送方法

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US20110233471A1 (en) * 2008-12-09 2011-09-29 Uhde Gmbh Method and system for supplying a reactor for generating crude synthesis gas
CN102549116A (zh) * 2009-08-12 2012-07-04 蒂森克虏伯伍德有限公司 向气流床气化反应器供应含碳燃料的方法
CN102549116B (zh) * 2009-08-12 2014-06-25 蒂森克虏伯伍德有限公司 向气流床气化反应器供应含碳燃料的方法
CN102154029A (zh) * 2009-12-21 2011-08-17 南方服务有限公司 供给粒状或细粒材料的高压供给器和操作方法

Also Published As

Publication number Publication date
DE102007020333A1 (de) 2008-11-06
US20100147413A1 (en) 2010-06-17
CN101679887A (zh) 2010-03-24
WO2008132069A3 (fr) 2008-12-31
DE112008000642A5 (de) 2010-03-18

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