CN104745240A - Process for adsorbing and regenerating adsorbent - Google Patents
Process for adsorbing and regenerating adsorbent Download PDFInfo
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- CN104745240A CN104745240A CN201510128417.0A CN201510128417A CN104745240A CN 104745240 A CN104745240 A CN 104745240A CN 201510128417 A CN201510128417 A CN 201510128417A CN 104745240 A CN104745240 A CN 104745240A
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- Prior art keywords
- absorption
- sorbent material
- adsorption bed
- adsorption
- valve
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Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/32—Purifying combustible gases containing carbon monoxide with selectively adsorptive solids, e.g. active carbon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/3416—Regenerating or reactivating of sorbents or filter aids comprising free carbon, e.g. activated carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/3483—Regenerating or reactivating by thermal treatment not covered by groups B01J20/3441 - B01J20/3475, e.g. by heating or cooling
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/002—Removal of contaminants
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/02—Dust removal
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Materials Engineering (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Separation Of Gases By Adsorption (AREA)
Abstract
The invention provides a process for adsorbing and regenerating absorbent, relates to the process for adsorbing and regenerating adsorbents, and aims to solve the problems that raw material coal gas adsorbed by the existing adsorbent cannot meet the requirement of various models of compressors for raw material coal gas and the adsorbent is easily failed. The process comprises the steps of 1, adsorbing; 2, reducing pressure; 3, heating to regenerate; and 4, performing cold blowing and cooling. By adopting the process, the raw material coal gas adsorbed by the adsorbent can meet the requirement of various models of compressors for raw material coal gas; the problem that the adsorbent is directly abandoned after being easily failed can be solved, the failed adsorbent can be regenerated by means of the method, and the adsorbability of the adsorbent is restored. The process for adsorbing and regenerating an adsorbent can be obtained.
Description
Technical field
The present invention relates to absorption and the reclaiming process of sorbent material.
Background technology
Sorbent material in physical adsorption there is essential property: one is different to the adsorptive power of different components, two is that adsorbate absorption on the sorbent easily declines with the rising of adsorption temp, utilize first character of sorbent material, can realize to the Preferential adsorption of some component in mixed gas, other component being purified; Utilize the second individual character matter of sorbent material, sorbent material can be realized and adsorb at low temperatures and at high temperature resolve regeneration, thus form the absorption and regeneration circulation of sorbent material, reach the object being continuously separated gas.
Summary of the invention
The object of the invention is the raw material coal gas after will solving existing adsorbent and can not meet the problem that various types of compressor easily lost efficacy to the requirement of raw material coal gas and sorbent material, and a kind of absorption and reclaiming process of sorbent material are provided.
The absorption of sorbent material and a reclaiming process, specifically carry out by the following method processing:
One, adsorb: raw material coal gas is entered into adsorption tower from the tower bottom valve of adsorption tower, adsorb under absorption operating pressure is 0.004MPa.g ~ 3.5MPa.g, impurity in raw material coal gas is by the adsorbent in adsorption bed, when the impurity in raw material coal gas reaches normality, close inlet valve and the outlet valve of adsorption bed, stop absorption;
Two, step-down: the step-down valve opening adsorption bed, the gas in adsorption bed is discharged bottom adsorption bed, then is burnt by expellant gas; As the Pressure Drop to 0 in adsorption bed ~ 0.5MPa.g, close step-down valve;
Three, ramp regeneration: the heating valve opening adsorption tower, nitrogen is heated to 170 DEG C ~ 190 DEG C by the steam that use temperature is 170 DEG C ~ 190 DEG C, pressure is 0.7MPa, be the nitrogen of 170 DEG C DEG C ~ 190 DEG C enters in adsorption tower adsorption bed from the valve at adsorption tower top again by temperature, adsorption bed is heated to 150 DEG C ~ 170 DEG C, the impurity of absorption is carried out desorb by the sorbent material in adsorption bed, the impurity of desorb is together discharged from the valve bottom adsorption bed with nitrogen, and sorbent material is regenerated;
Four, cold blowing cooling: nitrogen is entered into adsorption bed from the valve at adsorption tower top, the temperature in adsorption bed is down to 40 DEG C ~ 45 DEG C, namely complete absorption and the reclaiming process of sorbent material, comes into operation when absorption next time waited for by sorbent material.
Advantage of the present invention:
One, the present invention produce waste gas directly can drain into air, the present invention use after spent sorbents can directly landfill or through burning after landfill, decrease environmental pollution;
Two, the raw material coal gas after adsorbent of the present invention can meet the requirement of various types of compressor to raw material coal gas;
Three, the invention solves the problem of directly discarding after sorbent material easily lost efficacy, sorbent material can regenerate through method of the present invention after losing efficacy, and again had adsorptive power.
The present invention can obtain a kind of absorption and reclaiming process of sorbent material.
Embodiment
Embodiment one: present embodiment is that a kind of absorption of sorbent material and reclaiming process specifically carry out processing by the following method:
One, adsorb: raw material coal gas is entered into adsorption tower from the tower bottom valve of adsorption tower, adsorb under absorption operating pressure is 0.004MPa.g ~ 3.5MPa.g, impurity in raw material coal gas is by the adsorbent in adsorption bed, when the impurity in raw material coal gas reaches normality, close inlet valve and the outlet valve of adsorption bed, stop absorption;
Two, step-down: the step-down valve opening adsorption bed, the gas in adsorption bed is discharged bottom adsorption bed, then is burnt by expellant gas; As the Pressure Drop to 0 in adsorption bed ~ 0.5MPa.g, close step-down valve;
Three, ramp regeneration: the heating valve opening adsorption tower, nitrogen is heated to 170 DEG C ~ 190 DEG C by the steam that use temperature is 170 DEG C ~ 190 DEG C, pressure is 0.7MPa, be the nitrogen of 170 DEG C DEG C ~ 190 DEG C enters in adsorption tower adsorption bed from the valve at adsorption tower top again by temperature, adsorption bed is heated to 150 DEG C ~ 170 DEG C, the impurity of absorption is carried out desorb by the sorbent material in adsorption bed, the impurity of desorb is together discharged from the valve bottom adsorption bed with nitrogen, and sorbent material is regenerated;
Four, cold blowing cooling: nitrogen is entered into adsorption bed from the valve at adsorption tower top, the temperature in adsorption bed is down to 40 DEG C ~ 45 DEG C, namely complete absorption and the reclaiming process of sorbent material, comes into operation when absorption next time waited for by sorbent material.
The advantage of present embodiment:
One, present embodiment produce waste gas directly can drain into air, present embodiment use after spent sorbents can directly landfill or through burning after landfill, decrease environmental pollution;
Two, the raw material coal gas after present embodiment adsorbent can meet the requirement of various types of compressor to raw material coal gas;
Three, present embodiment solves the problem of directly discarding after sorbent material easily lost efficacy, and sorbent material can regenerate through method of the present invention after losing efficacy, and again had adsorptive power.
Present embodiment can obtain a kind of absorption and reclaiming process of sorbent material.
Embodiment two: the difference of present embodiment and embodiment one is: the impurity in the raw material coal gas described in step one is dust and tar.Other are identical with embodiment one.
Embodiment three: the difference of present embodiment and embodiment one or two is: the sorbent material in the adsorption bed described in step one is acticarbon.Other are identical with embodiment one or two.
Embodiment four: the difference of present embodiment and embodiment one to three is: described sorbent material Zi bring into use to the time of carrying out regenerating be 72h.Other are identical with embodiment one to three.
Embodiment five: the difference of present embodiment and embodiment one to four is: be the gas flow that the nitrogen of 170 DEG C enters into the adsorption bed in adsorption tower from the valve at adsorption tower top by temperature in step 3 be 3500 ~ 4000Nm
3/ h.Other are identical with embodiment one to four.
Embodiment six: the difference of present embodiment and embodiment one to five is: the gas flow in step 4, nitrogen being entered into adsorption bed from the valve at adsorption tower top is 3500 ~ 4000Nm
3/ h.Other are identical with embodiment one to five.
Embodiment seven: the difference of present embodiment and embodiment one to six is: the process tolerance of the adsorption tower described in step one is 220442.8Nm
3/ h.Other are identical with embodiment one to six.
Embodiment eight: the difference of present embodiment and embodiment one to eight is: the heating valve opening adsorption tower in step 3, nitrogen is heated to 170 DEG C by the steam that use temperature is 170 DEG C, pressure is 0.7MPa.Other are identical with embodiment one to eight.
Embodiment nine: the difference of present embodiment and embodiment one to nine is: in step 4, nitrogen is entered into adsorption bed from the top of adsorption tower, temperature in adsorption bed is down to 40 DEG C, namely complete absorption and the reclaiming process of sorbent material, come into operation when absorption next time waited for by sorbent material.Other are identical with embodiment one to nine.
Claims (9)
1. the absorption of sorbent material and a reclaiming process, is characterized in that what a kind of absorption of sorbent material and reclaiming process specifically carried out processing by the following method:
One, adsorb: raw material coal gas is entered into adsorption tower from the tower bottom valve of adsorption tower, adsorb under absorption operating pressure is 0.004MPa.g ~ 3.5MPa.g, impurity in raw material coal gas is by the adsorbent in adsorption bed, when the impurity in raw material coal gas reaches normality, close inlet valve and the outlet valve of adsorption bed, stop absorption;
Two, step-down: the step-down valve opening adsorption bed, the gas in adsorption bed is discharged bottom adsorption bed, then is burnt by expellant gas; As the Pressure Drop to 0 in adsorption bed ~ 0.5MPa.g, close step-down valve;
Three, ramp regeneration: the heating valve opening adsorption tower, nitrogen is heated to 170 DEG C ~ 190 DEG C by the steam that use temperature is 170 DEG C ~ 190 DEG C, pressure is 0.7MPa, be the nitrogen of 170 DEG C DEG C ~ 190 DEG C enters in adsorption tower adsorption bed from the valve at adsorption tower top again by temperature, adsorption bed is heated to 150 DEG C ~ 170 DEG C, the impurity of absorption is carried out desorb by the sorbent material in adsorption bed, the impurity of desorb is together discharged from the valve bottom adsorption bed with nitrogen, and sorbent material is regenerated;
Four, cold blowing cooling: nitrogen is entered into adsorption bed from the valve at adsorption tower top, the temperature in adsorption bed is down to 40 DEG C ~ 45 DEG C, namely complete absorption and the reclaiming process of sorbent material, comes into operation when absorption next time waited for by sorbent material.
2. the absorption of a kind of sorbent material according to claim 1 and reclaiming process, is characterized in that the impurity in the raw material coal gas described in step one is dust and tar.
3. the absorption of a kind of sorbent material according to claim 1 and reclaiming process, is characterized in that the sorbent material in the adsorption bed described in step one is acticarbon.
4. the absorption of a kind of sorbent material according to claim 1 and reclaiming process, it is characterized in that described sorbent material Zi bring into use to the time of carrying out regenerating be 72h.
5. the absorption of a kind of sorbent material according to claim 1 and reclaiming process, it is characterized in that being the gas flow of the adsorption bed that the nitrogen of 170 DEG C enters in adsorption tower from the valve at adsorption tower top by temperature in step 3 is 3500 ~ 4000Nm
3/ h.
6. the absorption of a kind of sorbent material according to claim 1 and reclaiming process, is characterized in that the gas flow in step 4, nitrogen being entered into adsorption bed from the valve at adsorption tower top is 3500 ~ 4000Nm
3/ h.
7. the absorption of a kind of sorbent material according to claim 1 and reclaiming process, is characterized in that the process tolerance of the adsorption tower described in step one is 220442.8Nm
3/ h.
8. the absorption of a kind of sorbent material according to claim 1 and reclaiming process, is characterized in that the heating valve opening adsorption tower in step 3, use temperature is 170 DEG C, nitrogen is heated to 170 DEG C by steam that pressure is 0.7MPa.
9. the absorption of a kind of sorbent material according to claim 1 and reclaiming process, it is characterized in that, in step 4, nitrogen is entered into adsorption bed from the top of adsorption tower, temperature in adsorption bed is down to 40 DEG C, namely completes absorption and the reclaiming process of sorbent material, come into operation when absorption next time waited for by sorbent material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510128417.0A CN104745240A (en) | 2015-03-23 | 2015-03-23 | Process for adsorbing and regenerating adsorbent |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510128417.0A CN104745240A (en) | 2015-03-23 | 2015-03-23 | Process for adsorbing and regenerating adsorbent |
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| Publication Number | Publication Date |
|---|---|
| CN104745240A true CN104745240A (en) | 2015-07-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510128417.0A Pending CN104745240A (en) | 2015-03-23 | 2015-03-23 | Process for adsorbing and regenerating adsorbent |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101323799A (en) * | 2008-07-29 | 2008-12-17 | 四川天一科技股份有限公司 | Coke oven gas dry cleaning temperature swing adsorption process |
| CN101899341A (en) * | 2009-05-26 | 2010-12-01 | 西安联合超滤净化设备有限公司 | Adsorption type high pressure natural gas dehydration process and device |
| CN103071475A (en) * | 2013-01-09 | 2013-05-01 | 西南石油大学 | Natural gas absorbent regeneration and energy conservation technology and device |
| JP2014014783A (en) * | 2012-07-10 | 2014-01-30 | Hitachi Ltd | Method and apparatus for regenerating adsorbing material and water purification system using the apparatus |
-
2015
- 2015-03-23 CN CN201510128417.0A patent/CN104745240A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101323799A (en) * | 2008-07-29 | 2008-12-17 | 四川天一科技股份有限公司 | Coke oven gas dry cleaning temperature swing adsorption process |
| CN101899341A (en) * | 2009-05-26 | 2010-12-01 | 西安联合超滤净化设备有限公司 | Adsorption type high pressure natural gas dehydration process and device |
| JP2014014783A (en) * | 2012-07-10 | 2014-01-30 | Hitachi Ltd | Method and apparatus for regenerating adsorbing material and water purification system using the apparatus |
| CN103071475A (en) * | 2013-01-09 | 2013-05-01 | 西南石油大学 | Natural gas absorbent regeneration and energy conservation technology and device |
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Application publication date: 20150701 |