CN104357090A - Method for continuously preparing fuel gas by quickly gasifying rice husks under auxiliary wave absorption effect of microwave absorbent - Google Patents

Method for continuously preparing fuel gas by quickly gasifying rice husks under auxiliary wave absorption effect of microwave absorbent Download PDF

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Publication number
CN104357090A
CN104357090A CN201410524232.7A CN201410524232A CN104357090A CN 104357090 A CN104357090 A CN 104357090A CN 201410524232 A CN201410524232 A CN 201410524232A CN 104357090 A CN104357090 A CN 104357090A
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CN
China
Prior art keywords
microwave
fuel gas
microwave absorbent
tar
gasification
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Pending
Application number
CN201410524232.7A
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Chinese (zh)
Inventor
王允圃
刘玉环
阮榕生
戴磊磊
张薛勤
杨倩
黄伊宁
何伟炜
吴可
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Nanchang University
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Nanchang University
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Publication date
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Priority to CN201410524232.7A priority Critical patent/CN104357090A/en
Publication of CN104357090A publication Critical patent/CN104357090A/en
Pending legal-status Critical Current

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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
    • C10J3/46—Gasification of granular or pulverulent flues in suspension
    • 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
    • C10J2300/0916—Biomass
    • 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
    • C10J2300/0973—Water
    • C10J2300/0976—Water as steam
    • 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
    • C10J2300/0983—Additives
    • 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
    • C10J2300/0983—Additives
    • C10J2300/0986—Catalysts
    • 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
    • C10J2300/12—Heating the gasifier
    • C10J2300/123—Heating the gasifier by electromagnetic waves, e.g. microwaves

Abstract

The invention discloses a method for continuously preparing fuel gas by quickly gasifying rice husks under auxiliary wave absorption effect of a microwave absorbent. The method comprises the following steps: (1) weighing the microwave absorbent and a catalyst according to a mass ratio of the microwave absorbent to the catalyst of (50 to 1) to (50 to 10), uniformly mixing, and adding a mixture into a reaction kettle; (2) heating the reaction kettle to be 800-1,100 DEG C in a microwave pyrolysis instrument, feeding rice husk powder, introducing high-heat water vapor at the same time, and condensing to remove tar, water and ash so as to continuously obtain the fuel gas. According to the method, microwaves have a unique catalytic cracking effect on the tar by the 'hot spot effect' of the microwaves, so that the content of the tar in the fuel gas can be reduced; a process of mixing the microwave absorbent with the efficient load catalyst is adopted, so that a high-heat catalytic gasification bed layer is formed under the microwave condition, the gasification time is very short, the reaction is quick, and the gasification efficiency is high.

Description

The method of inhaling ripple Quick-gasifying rice husk and preparing combustion gas assisted by a kind of continuous-type microwave absorption agent
Technical field
The invention belongs to biomass energy transformation technology field, relate to the method that rice husk prepares combustion gas.
Background technology
Biomass energy has the advantages such as distribution is wide, renewable, cleanliness (sulphur, nitrogen content are low), greenhouse gas emissions are few, is fossil oil substitute energy most with prospects on the earth.China is maximum in the world paddy plantation country, can the amount of exploitation very considerable, but state's endogenous substance is mainly used to direct burning, can not only the total efficiency of origin system very low, and cause serious environmental pollution.And the high added value material in biomass energy is destroyed, and causes the waste of resource.Therefore, how efficient research is, clean utilization Biomass Energy Resources is of great practical significance, and meet the strategic development planning of China's Devoting Major Efforts To Developing renewable energy source, Optimization of Energy Structure.
The research and development of biomass gasification technology have the history of a century, and countries in the world have corresponding R&D team and industrialization troop to be engaged in gasifying biomass to prepare the research and development of biomass synthesis gas technology and apply work.The gasification of standard biologic matter uses oxygen to provide the heat required for reaction by internal-combustion, or adopts electric heating or high-temperature medium type of heating in compact applications or demonstration.Heat must experience and import granule interior into from material particles surface, and volatile products then from inside to outside spread, and its heat and mass direction is contrary; And the problem such as it is little to there is heating rate, lack of homogeneity.Compared with traditional heating mode, microwave heating has following characteristic: transmissivity is strong, and rate of heating is fast; Uniformly penetrating, homogeneous heating; Hertzian wave can only be absorbed by heating object, and thermo-efficiency is high, efficient energy-saving; Selectivity heating can be carried out to component each in mixture; Microwave power is convenient to control, and safe and reliable.And " hot spot-effect " of microwave may have unique catalytic pyrolysis effect to biomass coke tar.Microwave absorption a kind ofly can absorb microwave, electromagnetic energy and reflect the material less with scattering, can absorb microwave at short notice and very fast intensification promotes biomass cracking gasification.Existing many correlative study work both at home and abroad demonstrates microwave and plasma body to improving fuel gasification efficiency, suppressing the unusual effect of the coal-tar middle oil generation of biomass gasification process.Therefore, exploitation microwave absorption is auxiliary to be inhaled ripple Quick-gasifying to prepare gas technology necessary, significant to exploration biomass efficient, clean utilization.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of continuous-type microwave absorption agent to assist suction ripple Quick-gasifying rice husk to prepare the method for combustion gas.The method rice husk cheaper starting materials is easy to get, and microwave gasification efficiency is high and fast, and hydrogen in gained combustion gas, carbon monoxide, methane content are high, and tar content is low, can realize that rice husk is efficient, clean utilization.
Technical scheme of the present invention is: the method for inhaling ripple Quick-gasifying rice husk and preparing combustion gas assisted by a kind of continuous-type microwave absorption agent, comprises the following steps.
(1) by microwave absorption: the mass ratio of catalyzer=50:1 ~ 50:10, take microwave absorption, catalyst mix and evenly add in reactor.
(2) reactor is placed in microwave cracking instrument, is heated to 800 ~ 1100 DEG C, and rice husk powder feed passes into high hot water and steam simultaneously, and tar, water and ash are removed in condensation, can obtain combustion gas continuously.
Microwave absorption of the present invention is nonmetal absorbing material, preferred ferrite, silicon carbide or carbon black.
Catalyzer of the present invention is loaded catalyst, preferred Ni/ Al 2o 3, Fe/ Al 2o 3or Co/ Al 2o 3.
The more existing gasification technology of the present invention, has the following advantages.
1, " hot spot-effect " of microwave has unique catalytic pyrolysis effect to tar, can reduce the content that combustion gas is coal-tar middle oil.
2, the method adopting microwave absorption to mix with efficient supported catalyst, form high thermocatalysis gasification bed under microwave condition, vaporization time is extremely short, is swift in response, and gasification efficiency is high.
Embodiment
The present invention will be described further by following examples.
Embodiment 1.
By 50 g silicon carbide, 1 g Fe/ Al 2o 3add with opening for feed, in three mouthfuls of quartzy bottles of steam pipe, prolong, be placed in microwave cracking instrument, constant power is warming up to 800 DEG C, rice husk powder feed 200 g, passes into high hot water and steam simultaneously, and 5 min charging reactions are complete, gasification efficiency 82%, in gas, hydrogen, carbon monoxide, methane content are 79%.
Embodiment 2.
By 50 g silicon carbide, 5 g Ni/ Al 2o 3add with opening for feed, in three mouthfuls of quartzy bottles of steam pipe, prolong, be placed in microwave cracking instrument, constant power is warming up to 1000 DEG C, rice husk powder feed 200 g, passes into high hot water and steam simultaneously, and 5 min charging reactions are complete, gasification efficiency 85%, in gas, hydrogen, carbon monoxide, methane content are 83%.
Embodiment 3.
By 50 g silicon carbide, 10 g Co/ Al 2o 3add with opening for feed, in three mouthfuls of quartzy bottles of steam pipe, prolong, be placed in microwave cracking instrument, constant power is warming up to 900 DEG C, rice husk powder feed 200 g, passes into high hot water and steam simultaneously, and 5 min charging reactions are complete, gasification efficiency 78%, in gas, hydrogen, carbon monoxide, methane content are 76%.
Embodiment 4.
By 50 g carbon blacks, 7 g Ni/ Al 2o 3add with opening for feed, in three mouthfuls of quartzy bottles of steam pipe, prolong, be placed in microwave cracking instrument, constant power is warming up to 1100 DEG C, rice husk powder feed 200 g, passes into high hot water and steam simultaneously, and 5 min charging reactions are complete, gasification efficiency 81%, in gas, hydrogen, carbon monoxide, methane content are 82%.

Claims (3)

1. the method for inhaling ripple Quick-gasifying rice husk and preparing combustion gas assisted by continuous-type microwave absorption agent, it is characterized in that comprising the following steps:
(1) by microwave absorption: the mass ratio of catalyzer=50:1 ~ 50:10, take microwave absorption, catalyst mix and evenly add in reactor;
(2) reactor is placed in microwave cracking instrument, is heated to 800 ~ 1100 DEG C, and rice husk powder feed passes into high hot water and steam simultaneously, and tar, water and ash are removed in condensation, can obtain combustion gas continuously.
2. method according to claim 1, is characterized in that described microwave absorption is ferrite, silicon carbide or carbon black.
3. method according to claim 1, is characterized in that described catalyzer is Ni/ Al 2o 3, Fe/ Al 2o 3or Co/ Al 2o 3.
CN201410524232.7A 2014-10-09 2014-10-09 Method for continuously preparing fuel gas by quickly gasifying rice husks under auxiliary wave absorption effect of microwave absorbent Pending CN104357090A (en)

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CN201410524232.7A CN104357090A (en) 2014-10-09 2014-10-09 Method for continuously preparing fuel gas by quickly gasifying rice husks under auxiliary wave absorption effect of microwave absorbent

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106675595A (en) * 2015-11-05 2017-05-17 中国石油化工股份有限公司大连石油化工研究院 Biomass pyrolysis gasification method and biomass pyrolysis gasification system
CN107619681A (en) * 2017-11-06 2018-01-23 南昌大学 A kind of microwave radiation technology Quick-gasifying stalk method
CN107723027A (en) * 2017-11-06 2018-02-23 南昌大学 A kind of method of microwave radiation technology dual bed quick catalysis stalk with the common vaporizing system of fine coal for combustion gas
CN107723008A (en) * 2017-11-06 2018-02-23 南昌大学 A kind of method of stalk discarded object Quick-gasifying
WO2020088172A1 (en) * 2018-10-29 2020-05-07 中国石油化工股份有限公司 Continuous operation method for microwave high-temperature pyrolysis of solid material comprising organic matter
CN112745960A (en) * 2019-10-30 2021-05-04 中国石油化工股份有限公司 Auxiliary agent for biomass pyrolysis treatment and preparation method and application thereof
CN112938982A (en) * 2021-02-18 2021-06-11 陕西科技大学 Method for preparing liquid oil and silicon carbide through microwave-assisted depolymerization of rice hulls

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CN100999665A (en) * 2006-12-29 2007-07-18 安徽大学 Fast synthesizing process of strontium aluminate rare earth long afterglow luminescent powder
CN101357750A (en) * 2008-09-11 2009-02-04 鲍涛 Method and device of microwave excitation molten salt catalytic reforming gasification carbon group compound
CN102602886A (en) * 2012-03-19 2012-07-25 宁波诺丁汉大学 Device for preparing synthesis gas through microwave strengthened hydrocarbon in a pyrolysis coupling catalyzing reforming manner
US20140051775A1 (en) * 2010-09-08 2014-02-20 Ecokap Technologies Llc Method and apparatus for producing liquid hydrocarbon fuels

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100999665A (en) * 2006-12-29 2007-07-18 安徽大学 Fast synthesizing process of strontium aluminate rare earth long afterglow luminescent powder
CN101357750A (en) * 2008-09-11 2009-02-04 鲍涛 Method and device of microwave excitation molten salt catalytic reforming gasification carbon group compound
US20140051775A1 (en) * 2010-09-08 2014-02-20 Ecokap Technologies Llc Method and apparatus for producing liquid hydrocarbon fuels
CN102602886A (en) * 2012-03-19 2012-07-25 宁波诺丁汉大学 Device for preparing synthesis gas through microwave strengthened hydrocarbon in a pyrolysis coupling catalyzing reforming manner

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106675595A (en) * 2015-11-05 2017-05-17 中国石油化工股份有限公司大连石油化工研究院 Biomass pyrolysis gasification method and biomass pyrolysis gasification system
CN106675595B (en) * 2015-11-05 2019-06-11 中国石油化工股份有限公司大连石油化工研究院 A kind of biomass pyrogenation gasification method and biomass pyrolysis system
CN107619681A (en) * 2017-11-06 2018-01-23 南昌大学 A kind of microwave radiation technology Quick-gasifying stalk method
CN107723027A (en) * 2017-11-06 2018-02-23 南昌大学 A kind of method of microwave radiation technology dual bed quick catalysis stalk with the common vaporizing system of fine coal for combustion gas
CN107723008A (en) * 2017-11-06 2018-02-23 南昌大学 A kind of method of stalk discarded object Quick-gasifying
CN107723008B (en) * 2017-11-06 2020-07-14 南昌大学 Method for quickly gasifying straw waste
WO2020088172A1 (en) * 2018-10-29 2020-05-07 中国石油化工股份有限公司 Continuous operation method for microwave high-temperature pyrolysis of solid material comprising organic matter
US11926794B2 (en) 2018-10-29 2024-03-12 China Petroleum & Chemical Corporation Continuous operation method for microwave high-temperature pyrolysis of solid material comprising organic matter
CN112745960A (en) * 2019-10-30 2021-05-04 中国石油化工股份有限公司 Auxiliary agent for biomass pyrolysis treatment and preparation method and application thereof
CN112938982A (en) * 2021-02-18 2021-06-11 陕西科技大学 Method for preparing liquid oil and silicon carbide through microwave-assisted depolymerization of rice hulls

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Application publication date: 20150218