CN105817135A - Preparing method for dry desulfurization agent for purifying marsh gas - Google Patents

Preparing method for dry desulfurization agent for purifying marsh gas Download PDF

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Publication number
CN105817135A
CN105817135A CN201610366719.6A CN201610366719A CN105817135A CN 105817135 A CN105817135 A CN 105817135A CN 201610366719 A CN201610366719 A CN 201610366719A CN 105817135 A CN105817135 A CN 105817135A
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CN
China
Prior art keywords
preparation
dry
marsh gas
desulphurizer
gas purifying
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.)
Pending
Application number
CN201610366719.6A
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Chinese (zh)
Inventor
王磊磊
刘明明
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Shanghai Municipal Engineering Design Insitute Group Co Ltd
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Shanghai Municipal Engineering Design Insitute Group Co Ltd
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Priority to CN201610366719.6A priority Critical patent/CN105817135A/en
Publication of CN105817135A publication Critical patent/CN105817135A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/81—Solid phase processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/48—Sulfur compounds
    • B01D53/52—Hydrogen sulfide
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
    • C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
    • C10L3/10—Working-up natural gas or synthetic natural gas
    • C10L3/101—Removal of contaminants
    • C10L3/102—Removal of contaminants of acid contaminants
    • C10L3/103—Sulfur containing contaminants

Abstract

The invention discloses a preparing method for a dry desulfurization agent for purifying marsh gas .The preparing method includes the steps that 1, honeycomb filler, a bonding agent and iron oxide powder are taken and serve as raw materials; 2, the honeycomb filler is compactly laid in a single layer, the boning agent is evenly sprayed on the honeycomb filler, then the iron oxide powder is evenly paved till gaps of the honeycomb filler are completely filled, and preparing and paving of a first desulfurization agent are completed; 3, drying is carried out, then the step 2 is repeated, and a second desulfurization agent is prepared and paved on the first desulfurization agent; 4, all desulfurization agents are continuously prepared with the same steps, and serve as a filler layer unit, and a whole desulfurization agent is formed by multiple filler layer units .By means of the preparing method for the dry desulfurization agent for purifying the marsh gas, the prepared desulfurization agent can be used for efficient desulfurization and is high in applicability, and the defects that in a traditional dry desulfurization agent, the desulphurization efficiency is low, holes are prone to forming, and applicability is low are overcome.

Description

A kind of preparation method of the dry-desulphurizer for marsh gas purifying
Technical field
The present invention relates to the preparation method of the scavenging material of a kind of biogas desulfurization technique, in particular it relates to the preparation method of the dry-desulphurizer for marsh gas purifying of a kind of high-efficiency desulfurization.
Background technology
Mainly containing CH in biogas4And CO2, the most a small amount of H2S、H2O and NH3.By the foreign gas in purification technology removing biogas, obtain highly purified methane gas, " biogas " making middle grade is changed into high-grade " bio-natural gas ", can be widely used as transporting fuel, domestic fuel or basic chemical raw materials and use, effectively promote the value of biogas.Biogas contains a certain amount of hydrogen sulfide, and the most also containing minimal amount of organic sulfur, hydrogen sulfide is the harmful substance of severe toxicity；Air can make people fatal containing in the hydrogen sulfide several seconds of 0.1%；It has very deep-etching effect to appendix, instrument and meter, combustion apparatus, and its combustion product sulfur dioxide is also the gas that a kind of corrosivity is the strongest, and simultaneously entering air can produce " acid rain ".For ensureing health and environment protection, extend the service life of gas-fired equipment etc., it is necessary to carry out desulfurization.
The mainly dry method normal temperature iron oxide (Fe that biogas desulfurization method is more practical and classical2O3) method, but its major defect has that filling is random big, desulfurizing agent lay is uneven, gas by being easily formed hole, air-flow is insufficient with desulfurization agent and causes secondary pollution etc..
Summary of the invention
It is an object of the invention to provide the preparation method of a kind of material for marsh gas purifying, the desulfurizing agent of preparation can high-efficiency desulfurization, the suitability strong, the desulfuration efficiency solving conventional dry desulfurizing agent is low, be easily formed hole, shortcoming that the suitability is low.
In order to achieve the above object, the invention provides the preparation method of a kind of dry-desulphurizer for marsh gas purifying, wherein, the method comprises: step 1, takes honeycomb filler, binding agent, brown iron oxide as raw material；Step 2, by the honeycomb tight lay of filler monolayer, uniform sprinkle binding agent thereon, the most uniformly pave brown iron oxide, until brown iron oxide is completely filled with the gap of honeycomb filler, the preparation of ground floor desulfurizing agent has been mated formation；Step 3, carries out the most dried under 80 DEG C or room temperature, repeats step 2, prepares second layer desulfurizing agent of mating formation on ground floor desulfurizing agent；Step 4, is continued to prepare each layer desulfurizing agent by same step, and using some layers of desulfurizing agent as a packing layer unit, it is overall that some packing layer unit constitute desulfurizing agent.
The preparation method of the above-mentioned dry-desulphurizer for marsh gas purifying, wherein, described binding agent is antioxidation high-temperature-resistant adhesive.
The preparation method of the above-mentioned dry-desulphurizer for marsh gas purifying, wherein, described antioxidation high-temperature-resistant adhesive is preferably commercially available XZ-T002 high temperature resistant inorganic aqueous compound binding agent.
The preparation method of the above-mentioned dry-desulphurizer for marsh gas purifying, wherein, described antioxidation high-temperature-resistant adhesive density > 9.2g/cm3, softening point >=50 DEG C, flow rate≤1.1g/10min under melt state.
The preparation method of the above-mentioned dry-desulphurizer for marsh gas purifying, wherein, described brown iron oxide is graininess, particle diameter >=10 μm, density > 5.0g/cm3, purity >=99.9%.
The preparation method of the above-mentioned dry-desulphurizer for marsh gas purifying, wherein, described honeycomb filler is multiaspect hollow cylinder, and material is polypropylene.
The preparation method of the above-mentioned dry-desulphurizer for marsh gas purifying, wherein, described honeycomb filler, diameter of phi > 100mm, proportion > 0.95, specific surface area > 40m2/m3, packing ratio > and 230kg/m3, voidage < 83% (m3/m3)。
The preparation method of the above-mentioned dry-desulphurizer for marsh gas purifying, wherein, honeycomb filler, binding agent, brown iron oxide in described step 2, the weight ratio of its monolayer quantity is 1:0.3:2.
The preparation method of the above-mentioned dry-desulphurizer for marsh gas purifying, wherein, in described step 2, uniform sprinkle binding agent is 1-2mm to its thickness.
The preparation method of the above-mentioned dry-desulphurizer for marsh gas purifying, wherein, in described step 4, every six layers of desulfurizing agent are 10cm as a packing layer unit, the spacing of each two packing layer unit.
The preparation method for the dry-desulphurizer of marsh gas purifying that the present invention provides has the advantage that
(1) specific surface area increases, and time of contact extends, and desulfurized effect is obviously improved.
(2) uniform air distribution of biogas significantly improves, and promotes desulfurized effect further.
(3) be easy to existing engineered.
(4) desulfurizing agent material against oxidative, anticorrosive is durable in use.
Accompanying drawing explanation
Fig. 1 is the monolayer desulfurizing agent filling schematic diagram of the preparation method of the dry-desulphurizer for marsh gas purifying of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the detailed description of the invention of the present invention is further described.
As it is shown in figure 1, the preparation method of the dry-desulphurizer for marsh gas purifying of present invention offer, comprise:
Step 1, takes honeycomb filler 1, binding agent 2, brown iron oxide 3 as raw material.
Binding agent 2 is antioxidation high-temperature-resistant adhesive, preferably XZ-T002 high temperature resistant inorganic aqueous compound binding agent.This antioxidation high-temperature-resistant adhesive density > 9.2g/cm3, softening point >=50 DEG C, flow rate≤1.1g/10min under melt state.
Brown iron oxide 3 is graininess, particle diameter >=10 μm, density > 5.0g/cm3, purity >=99.9%.
Honeycomb filler 1 is multiaspect hollow cylinder, and material is polypropylene.
Honeycomb filler 1 diameter of phi > 100mm, proportion > 0.95, specific surface area > 40m2/m3, packing ratio > and 230kg/m3, voidage < 83% (m3/m3)。
Step 2, by the honeycomb filler 1 tight lay of monolayer, uniform sprinkle binding agent 2 thereon, being 1-2mm to its thickness, the most uniformly pave brown iron oxide 3, until brown iron oxide 3 is completely filled with the gap of honeycomb filler 1, the preparation of ground floor desulfurizing agent has been mated formation.Honeycomb filler 1, binding agent 2, brown iron oxide 3, the weight ratio of its monolayer quantity is 1:0.3:2.
Step 3, carries out at 80 DEG C or room temperature the most dried, repeats step 2, prepares second layer desulfurizing agent of mating formation on ground floor desulfurizing agent.
Step 4, is continued to prepare each layer desulfurizing agent by same step, and using some layers of desulfurizing agent as a packing layer unit, it is overall that some packing layer unit constitute desulfurizing agent.Preferably, every six layers of desulfurizing agent are 10cm as a packing layer unit, the spacing of each two packing layer unit.
It is further described below in conjunction with compound probiotic beverage that the present invention is provided by embodiment and preparation method thereof.
Embodiment 1
Take honeycomb filler 1, binding agent 2, brown iron oxide 3 as raw material.Honeycomb filler 1 is multiaspect hollow cylinder, and material is polypropylene, diameter of phi 120mm, proportion 0.96, specific surface area 58m2/m3, packing ratio 238kg/m3, voidage 80%m3/m3, monolayer weight about 10g.Binding agent 2 is preferably XZ-T002 high temperature resistant inorganic aqueous compound binding agent, density 9.3g/cm3, softening point 60 DEG C, under melt state, flow rate is 1.1g/10min.Monolayer quantity 3.1g.Brown iron oxide 3 is graininess, particle diameter 10 μm, density 5.2g/cm3, purity 99.9%, monolayer quantity 20g.
By the honeycomb filler 1 tight lay of monolayer, uniform sprinkle antioxidation high-temperature-resistant adhesive, by its THICKNESS CONTROL at 1-2mm, the most uniformly pave brown iron oxide 3, until brown iron oxide 3 is completely filled with the gap of filler, the preparation of ground floor desulfurizing agent has been mated formation；According to same step, room temperature is thoroughly dried, prepares second layer desulfurizing agent of mating formation；Every six layers is a packing layer unit, and each two packing layer unit interval is 10cm.
The preparation method of the dry-desulphurizer for marsh gas purifying that the present invention provides, the dry-desulphurizer of preparation uses honeycomb filler 1 as skeleton, by antioxidation high-temperature-resistant adhesive, brown iron oxide 3 is solidificated in honeycomb filler 1 surface, form novel desulfurizing agent, again by the formation desulfurization unit of closely mating formation of multilamellar, both can extend contact time, improve desulphurization reaction efficiency, make marsh gas flow be dispersed in the whole section of reactor shell, it is to avoid brown iron oxide 3 forms hole simultaneously.
The preparation method of the dry-desulphurizer for marsh gas purifying that the present invention provides, also utilizes frame design to add catalytic specific surface area, utilizes multilamellar Pavement design to optimize gas channel.The present invention can be used for newly-built anaerobic sludge digestion and produce the installation of Marsh gas desulfurizing tower, can be used for again the transformation and optimization of similar dry desulfurizing tower, it is achieved that effectively contact, effecting reaction, effectively mix.
Although present disclosure has been made to be discussed in detail by above preferred embodiment, but it should be appreciated that the description above is not considered as limitation of the present invention.After those skilled in the art have read foregoing, multiple amendment and replacement for the present invention all will be apparent from.Therefore, protection scope of the present invention should be limited to the appended claims.

Claims (10)

1. the preparation method for the dry-desulphurizer of marsh gas purifying, it is characterised in that the method comprises:
Step 1, takes honeycomb filler, binding agent, brown iron oxide as raw material；
Step 2, by the honeycomb tight lay of filler monolayer, uniform sprinkle binding agent thereon, the most uniformly pave brown iron oxide, until brown iron oxide is completely filled with the gap of honeycomb filler, the preparation of ground floor desulfurizing agent has been mated formation；
Step 3, after being dried, repeats step 2, prepares second layer desulfurizing agent of mating formation on ground floor desulfurizing agent；
Step 4, is continued to prepare each layer desulfurizing agent by same step, and using some layers of desulfurizing agent as a packing layer unit, it is overall that some packing layer unit constitute desulfurizing agent.
2. the preparation method of the dry-desulphurizer for marsh gas purifying as claimed in claim 1, it is characterised in that described binding agent is antioxidation high-temperature-resistant adhesive.
3. the preparation method of the dry-desulphurizer for marsh gas purifying as claimed in claim 2, it is characterised in that described antioxidation high-temperature-resistant adhesive is XZ-T002 high temperature resistant inorganic aqueous compound binding agent.
4. the preparation method of the dry-desulphurizer for marsh gas purifying as claimed in claim 3, it is characterised in that described antioxidation high-temperature-resistant adhesive density > 9.2g/cm3, softening point >=50 DEG C, flow rate≤1.1g/10min under melt state.
5. the preparation method of the dry-desulphurizer for marsh gas purifying as claimed in claim 1, it is characterised in that described brown iron oxide is graininess, particle diameter >=10 μm, density > 5.0g/cm3, purity >=99.9%.
6. the preparation method of the dry-desulphurizer for marsh gas purifying as claimed in claim 1, it is characterised in that described honeycomb filler is multiaspect hollow cylinder, and material is polypropylene.
7. the preparation method of the dry-desulphurizer for marsh gas purifying as claimed in claim 6, it is characterised in that described honeycomb filler, diameter of phi > 100mm, proportion > 0.95, specific surface area > 40m2/m3, packing ratio > and 230kg/m3, voidage < 83%m3/m3。
8. the preparation method of the dry-desulphurizer for marsh gas purifying as claimed in claim 1, it is characterised in that honeycomb filler, binding agent, brown iron oxide in described step 2, the weight ratio of its monolayer quantity is 1:0.3:2.
9. the preparation method of the dry-desulphurizer for marsh gas purifying as claimed in claim 8, it is characterised in that in described step 2, uniform sprinkle binding agent is 1-2mm to its thickness.
10. the preparation method of the dry-desulphurizer for marsh gas purifying as claimed in claim 1, it is characterised in that in described step 4, every six layers of desulfurizing agent are 10cm as a packing layer unit, the spacing of each two packing layer unit.
CN201610366719.6A 2016-05-30 2016-05-30 Preparing method for dry desulfurization agent for purifying marsh gas Pending CN105817135A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1420800A (en) * 1999-10-15 2003-05-28 Abb拉默斯环球有限公司 Conversion of nitrogen oxides in presence of catalyst supported of mesh-like structure
CN1594077A (en) * 2004-07-05 2005-03-16 湖北省化学研究院 Hydrocarbon trap method for carbon dioxide for foodstuff
CN101143290A (en) * 2006-09-13 2008-03-19 宝山钢铁股份有限公司 Normal temperature iron oxide desulfurizing agent, preparation method and application thereof
CN101970105A (en) * 2008-03-12 2011-02-09 约翰森·马瑟公开有限公司 Preparation of desulphurisation materials
WO2015101275A1 (en) * 2013-12-31 2015-07-09 北京三聚环保新材料股份有限公司 High-concentration carbonyl sulfide conversion-absorption type desulfurizer and carbon disulfide conversion-absorption type desulfurizer and preparation method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1420800A (en) * 1999-10-15 2003-05-28 Abb拉默斯环球有限公司 Conversion of nitrogen oxides in presence of catalyst supported of mesh-like structure
CN1594077A (en) * 2004-07-05 2005-03-16 湖北省化学研究院 Hydrocarbon trap method for carbon dioxide for foodstuff
CN101143290A (en) * 2006-09-13 2008-03-19 宝山钢铁股份有限公司 Normal temperature iron oxide desulfurizing agent, preparation method and application thereof
CN101970105A (en) * 2008-03-12 2011-02-09 约翰森·马瑟公开有限公司 Preparation of desulphurisation materials
WO2015101275A1 (en) * 2013-12-31 2015-07-09 北京三聚环保新材料股份有限公司 High-concentration carbonyl sulfide conversion-absorption type desulfurizer and carbon disulfide conversion-absorption type desulfurizer and preparation method thereof

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Application publication date: 20160803