CN1498678A - Absorbing agent for dewatering of alcohol contg. water - Google Patents
Absorbing agent for dewatering of alcohol contg. water Download PDFInfo
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- CN1498678A CN1498678A CNA021501351A CN02150135A CN1498678A CN 1498678 A CN1498678 A CN 1498678A CN A021501351 A CNA021501351 A CN A021501351A CN 02150135 A CN02150135 A CN 02150135A CN 1498678 A CN1498678 A CN 1498678A
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- adsorbent
- hydrous ethanol
- ethanol dehydration
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- dehydration according
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Abstract
An adsorbent for dewatering the hydrous alcohol is prepared from dried sweet potato, dried cassava, dried potato, wheat, sweet potato stem, xanthan gum and carboxymethyl starch through pulverizing, proportional mixing, adding water and shaping. Its advantages are high porosity and output rate, high adsorbability and degradability, and long service life.
Description
Affiliated technical field
The present invention relates to a kind of hydrous ethanol dehydration and use adsorbent, belong to ethanol and fuel ethanol production technical field.
Background technology
At present, the technology of producing ethanol or alcohol fuel can be divided into two big classes: a kind of is the way of distillation, because ethanol and water can form azeotropic mixture, must use the third component, it is organic solvent, be dense saline solution, just can separate azeotropic mixture and water, distill then water is separated from the third component.Mainly there are two defectives in the way of distillation: the one, and energy consumption is too high, and the 2nd, pollutant emission is arranged.Another kind is an absorption method, is that adsorbent dewaters with lime, silica gel, molecular sieve, cereal, compare with the way of distillation have low, the no three wastes of energy consumption, characteristics that cost is low, more and more cause extensive concern.Molecular sieve adsorption screens multicomponent according to the molecular sieve bore diameter size and reaches the absorption purpose, but that molecular sieve adsorption exists adsorbent is on the high side, the finished product yield is on the low side and lost efficacy after the defective that can only handle as waste residue; And in the cereal absorption method fluid by the time adsorbent resistance big, will consume more energy during regeneration.To search out a kind of price low for this reason, and energy consumes low adsorbent during the high and regeneration of finished product yield has become the key technology that can ethanol and alcohol fuel realize low-cost production.
Summary of the invention
In order to overcome the high deficiency of production cost in the existing adsorption dewatering technology, the invention provides a kind of special-purpose adsorbent of producing ethanol and alcohol fuel, that this adsorbent has is cheap, long service life, absorption and resolution speed is fast, the regeneration energy consumption is low, operating condition is gentle, the product yield is high and lost efficacy after the characteristics that can also use as ethanol raw material.
The technical solution adopted for the present invention to solve the technical problems is:
1. dried sweet potato, cassava are done, potato does, wheat, sweet potato vine, xanthans and CMS are ground into different grain size respectively;
2. mentioned component adds the water one-shot forming separately or after (containing two kinds) more than two kinds with arbitrary proportion and mixing, and forms the adsorbent skeleton;
3. regelate moulding forms the granular adsorption agent, and the absorbent particles after the curing is inner can be the micropore of 2～3.5nm and to have certain mechanical strength in a large amount of apertures of formation;
4. this adsorbent has very strong suction-operated to hydrone, and then suction-operated is very weak to ethanol molecule, and hydrone is attracted on the adsorbent after hydrous ethanol is by adsorbent, thereby ethanol molecule is then smoothly by reaching the purpose of dehydration.Hydrous ethanol by adsorbent can be that gaseous state also can be liquid.
5. after reaching capacity state, adsorbent can make its regeneration through oven dry.
Technique effect of the present invention is, adsorbent itself is cheap, and long service life adopts the regelate forming processing technology, makes adsorbent have huge specific area, and adsorption capacity is big, guaranteeing under the big prerequisite of specific area product yield height; Make absorbent particlesization, absorption and resolution speed are fast, and fluid resistance is little, the operating condition gentleness, and the regeneration energy consumption is low; Adsorbent can also be fully utilized after using simultaneously.All do not have " three wastes " in adsorbent production process and the ethanol dehydration process and belong to the cleaning method production technology, saved and handled required great amount of investment and the operating cost of the three wastes.
The specific embodiment
1. dried sweet potato, cassava are done, potato does, wheat, sweet potato vine, xanthans and CMS are ground into different grain size respectively;
2. mentioned component adds the water one-shot forming separately or after (containing two kinds) more than two kinds with arbitrary proportion and mixing, and forms the adsorbent skeleton;
3. regelate moulding forms the granular adsorption agent, and the absorbent particles after the curing is inner can be the micropore of 2～3.5nm and to have certain mechanical strength in a large amount of apertures of formation.
4. the adsorption tower of adsorbent being packed into allows a kind of hot carrier gas stream regenerate by adsorption layer; Hydrous ethanol is by adsorption layer then, and hydrone is adsorbed agent absorption, the then straightway adsorption layer that passes through of ethanol molecule.Carrier gas is generally air, carbon dioxide or nitrogen.
5. adsorb a kind of hot carrier gas of saturated relief and make its regeneration, enter next circulation by adsorbent.
6. concentration of alcohol 92.4% (w) in the hydrous ethanol before adsorbing, concentration of alcohol is 99.7% (w) in the hydrous ethanol of absorption back, quality meets GB18350-2001 alcohol fuel standard and GB678-90 absolute ethyl alcohol standard.
7. the adsorbent that is adopted also is applicable to the dehydration of the hydrous ethanol of ethanol content below 90% (w).
Claims (8)
1. hydrous ethanol dehydration adsorbent, it is characterized in that hydrous ethanol dehydration with adsorbent be by: dried sweet potato, cassava do, potato does, wheat, sweet potato vine, xanthans and CMS after being ground into different grain size, constitute separately or the composition that (contains two kinds) more than two kinds mixes the back formation with arbitrary proportion with a kind of composition; Above-mentioned raw materials forms the solid particle that a large amount of micropores are contained in inside through post forming.
2. adsorbent is used in 1 described hydrous ethanol dehydration according to claims, it is characterized in that coating of particles can be spherical and cylindrical, also can be that other is irregularly shaped.
3. adsorbent is used in 1 described hydrous ethanol dehydration according to claims, and it is characterized in that particle is of a size of: the sphere diameter of spheric granules is from 0.5 millimeter to 20 millimeters; Cylindrical particle post footpath is from 0.5 millimeter to 20 millimeters, and column length is from 0.5 millimeter to 20 millimeters; From 0.5 to 20 millimeter of other irregularly shaped profile full-size.
4. adsorbent is used in 1 described hydrous ethanol dehydration according to claims, and the mechanical compression strength that it is characterized in that particle is greater than 8 (oxen).
5. adsorbent is used in 1 described hydrous ethanol dehydration according to claims, it is characterized in that ethanol is exactly alcohol.
6. adsorbent is used in 1 described hydrous ethanol dehydration according to claims, it is characterized in that this adsorbent promptly is applicable to the hydrous ethanol dehydration of high-moisture, also is applicable to the hydrous ethanol dehydration of low water content.
7. adsorbent is used in 1 described hydrous ethanol dehydration according to claims, and the water content that it is characterized in that using this adsorbent can make hydrous ethanol is less than 3% (mass percent).
8. adsorbent is used in described hydrous ethanol dehydration according to claims 1, it is characterized in that hydrous ethanol can carry out under gas phase state in the dehydration of hydrous ethanol, also can carry out under liquid phase state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021501351A CN1498678A (en) | 2002-11-07 | 2002-11-07 | Absorbing agent for dewatering of alcohol contg. water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021501351A CN1498678A (en) | 2002-11-07 | 2002-11-07 | Absorbing agent for dewatering of alcohol contg. water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1498678A true CN1498678A (en) | 2004-05-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA021501351A Pending CN1498678A (en) | 2002-11-07 | 2002-11-07 | Absorbing agent for dewatering of alcohol contg. water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1498678A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100391592C (en) * | 2006-06-02 | 2008-06-04 | 郑州大学生化工程中心 | Adsorbent for dewatering alcohol |
| WO2009156293A1 (en) * | 2008-06-25 | 2009-12-30 | Henkel Ag & Co. Kgaa | Compositions for shaping keratin fibers, based on a natural, supporting polymer combination |
| CN101879437A (en) * | 2010-08-04 | 2010-11-10 | 湖南农业大学 | Dehydrated adsorbent for producing ethanol by adsorption method and preparation method thereof |
| CN101391204B (en) * | 2008-10-21 | 2011-09-14 | 天津大学 | Dehydration adsorbent for lower alcohol and preparation method thereof |
| US8080139B2 (en) | 2005-09-02 | 2011-12-20 | Yaling Zhong | Method of anhydrous ethanol production using circulation by multiple towers alternation |
| CN102600801A (en) * | 2012-04-09 | 2012-07-25 | 西北师范大学 | Preparation of waste potato residue/palygorskite composite adsorbent and application of adsorbent in treatment of potato starch processing wastewater |
| CN102805321A (en) * | 2012-08-16 | 2012-12-05 | 山西宜芳食品有限公司 | Pound cake powder of potato and processing method of pound cake of potato |
-
2002
- 2002-11-07 CN CNA021501351A patent/CN1498678A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8080139B2 (en) | 2005-09-02 | 2011-12-20 | Yaling Zhong | Method of anhydrous ethanol production using circulation by multiple towers alternation |
| CN100391592C (en) * | 2006-06-02 | 2008-06-04 | 郑州大学生化工程中心 | Adsorbent for dewatering alcohol |
| WO2009156293A1 (en) * | 2008-06-25 | 2009-12-30 | Henkel Ag & Co. Kgaa | Compositions for shaping keratin fibers, based on a natural, supporting polymer combination |
| CN101391204B (en) * | 2008-10-21 | 2011-09-14 | 天津大学 | Dehydration adsorbent for lower alcohol and preparation method thereof |
| CN101879437A (en) * | 2010-08-04 | 2010-11-10 | 湖南农业大学 | Dehydrated adsorbent for producing ethanol by adsorption method and preparation method thereof |
| CN102600801A (en) * | 2012-04-09 | 2012-07-25 | 西北师范大学 | Preparation of waste potato residue/palygorskite composite adsorbent and application of adsorbent in treatment of potato starch processing wastewater |
| CN102600801B (en) * | 2012-04-09 | 2013-08-14 | 西北师范大学 | Preparation of waste potato residue/palygorskite composite adsorbent and application of adsorbent in treatment of potato starch processing wastewater |
| CN102805321A (en) * | 2012-08-16 | 2012-12-05 | 山西宜芳食品有限公司 | Pound cake powder of potato and processing method of pound cake of potato |
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