CN107335247A - A kind of method of acids classified utilization in biomass thermal conversion solution product - Google Patents
A kind of method of acids classified utilization in biomass thermal conversion solution product Download PDFInfo
- Publication number
- CN107335247A CN107335247A CN201710467293.8A CN201710467293A CN107335247A CN 107335247 A CN107335247 A CN 107335247A CN 201710467293 A CN201710467293 A CN 201710467293A CN 107335247 A CN107335247 A CN 107335247A
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- product
- conversion solution
- thermal conversion
- acids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
- B01D3/143—Fractional distillation or use of a fractionation or rectification column by two or more of a fractionation, separation or rectification step
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
- C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
- C07C51/44—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation by distillation
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention discloses a kind of method of acids classified utilization in biomass thermal conversion solution product, suitable for the biomass thermal conversion solution product by pretreatment, purposes is to separate product liquid by multistage rectification unit, obtain the acids product of different stage, realize that thermal transition product liquid classification separation and different component product are utilized respectively.Drip irrigation device is：Classification separation is carried out to thermal transition product liquid using three-level rectifying column unit, every grade of column overhead produces a kind of product.First order rectifying column obtains the dilute vinegar liquid product of low toxicity, reduces moisture in thermal transition product liquid；Second level rectifying column obtains highly concentrated no phenol vinegar liquid product, and overhead extraction is free of the product of phenol；Third level rectifying column obtains dry crude acid product, and overhead extraction utilizes without aquatic products, bottom product as fuel feedstocks, or is used as later separation raw material.
Description
Technical field
The present invention relates to environmental technology field, and in particular to acids classified utilization in a kind of biomass thermal conversion solution product
Method.
Background technology
The biomass resource amounts such as Agriculture, forestry And Animal Husbandry farm discarded object are big, abundance, and dealing with improperly can impact to environment, very
To being detrimental to health.Agriculture, forestry And Animal Husbandry farm discarded object realizes that recycling is most viable mode by thermal transition at present, heat
Transform mode has charing, gasification and fast pyrogenation etc..
Charing, gasify different with the transformation efficiency of the means such as fast pyrogenation heat, gained product liquid component is extremely complex,
What is detected has kind more than 400, not only containing a large amount of water and acids, while also containing a large amount of ketones, aldehydes, esters, phenols etc.
Component.Product liquid stability is poor, is unsuitable for directly as fuel, is also not suitable for directly as disinfectant, pest repellant and blade face
Fertilizer etc., therefore it is that a crucial technology is asked in biomass thermal conversion industrialization production that thermal transition product liquid system, which is utilized,
Topic.
Containing substantial amounts of water, low concentration acids and the aldehydes matter with bio-toxicity in thermal transition product liquid, to liquid
Phase product utilization brings larger difficulty, if high toxicity aldehydes matter can be incorporated into mankind's food directly as disinfectant or fertilizer
In thing chain；If steamed by simple extraction or rectifying, acids energy consumption is larger, and added value is low and application also has great limitation.
This patent is directed to above-mentioned reason, the method for proposing acids classified utilization in a kind of thermal transition product liquid, not only may be used
To obtain low toxicity or non-toxic disinfection solution, and can be as the raw material of the thick acid of extraction chemical industry without phenol vinegar liquid.
The content of the invention
The invention provides a kind of method of acids classified utilization in biomass thermal conversion solution product, thermal transition is realized
Product liquid classification separation is utilized respectively with different component product.
In order to achieve the above object, present invention employs following technical scheme：In a kind of biomass thermal conversion solution product
The method of acids classified utilization, thermal transition product liquid is classified using three-level rectification cell and separated, every grade of rectification cell steams
Light component product.
First order rectifying column acts in flow：The dilute vinegar liquid product of low toxicity is obtained, moisture in thermal transition product liquid is reduced and contains
Amount, has a small amount of phenols, ketone, esters to be carried into the product.
Second level rectifying column acts in flow：Highly concentrated no phenol vinegar liquid product is obtained, first order tower bottom of rectifying tower raffinate is entered
Row acid extracting, overhead extraction is free of the product of phenol amount, while has substantial amounts of moisture and a small amount of ketone, esters to be carried into this
Product.
Third level rectifying column acts in flow：Dry crude acid product is obtained, two are carried out to second level tower bottom of rectifying tower raffinate
Hypo acid extracts, the anhydrous product of overhead extraction, while has part ketone and esters to be carried into the product；Bottom product conduct
Fuel feedstocks utilize, or are used as later separation raw material.
First order rectifying device operation absolute pressure is 10 ~ 120 kPa, and tower top temperature is 8 ~ 80 DEG C, and bottom temperature is 6 ~ 120
℃；Second level rectifying device operation absolute pressure is 10 ~ 100 kPa, and tower top temperature is 47 ~ 110 DEG C, and bottom temperature is 83 ~ 150 DEG C.
Third level rectifying device operation absolute pressure is 1 ~ 40kPa, and tower top temperature is 18 ~ 97 DEG C, and bottom temperature is 46 ~ 130 DEG C.
The beneficial effects of the invention are as follows：
（1）The application method provides a kind of method that biomass thermal conversion solution product separation utilizes；
（2）The application method use range is extensive, includes the liquid of biomass carbonated, gasification of biomass and biomass fast pyrogenation etc.
Body product；
（3）The application method process structure is simple, abundant raw material, and cost is cheap and cost of investment is low；
（4）Rectifying column unit operating condition is gentle in the application method, and products obtained therefrom meets actual production requirement；
（5）After being separated to acids component level, beneficial to acids product utilization；Constituent species reduce in remaining raffinate, chemical stability
Enhancing, is more easy to store and utilizes.
Brief description of the drawings
Accompanying drawing 1 is the inventive method schematic flow sheet.
Label in accompanying drawing：1:Thermal transition liquid product；2:The dilute vinegar liquid of low toxicity；3:Highly concentrated no phenol vinegar liquid；4:Dry crude
Acid；5:It is dehydrated depickling logistics；6：First order rectifying device；7：Second level rectifying device；8：Third level rectifying device.
Embodiment
In order that the technological means of this explanation, technical principle, technical characteristic readily appreciate, with reference to embodiment to this hair
It is bright to be further described, but the scope of the present invention is not limited, it is necessary to which explanation, passes through the hands such as charing, fast pyrogenation, gasification
Biomass pyrolytic conversion liquid product caused by section is that yield and composition content are had any different, and will not be had to implementation principle of the present invention
The influence of essence.
Embodiment 1
According to accompanying drawing flow, the directly charging of biomass fast pyrogenation oil, inlet amount is 1000 kg/h, the behaviour of first order rectifying column
It is as condition：The kPa of absolute pressure 30,45 DEG C of tower top temperature, 78 DEG C of bottom temperature；The operating condition of second level rectifying column is：Absolute pressure 20
KPa, 62 DEG C of tower top temperature, 111 DEG C of bottom temperature；The operating condition of third level rectifying column is：The kPa of absolute pressure 10, tower top temperature 81
DEG C, 98 DEG C of bottom temperature.
Embodiment 2
According to accompanying drawing flow, biomass fast pyrogenation oil removes heavy constituent by gasification process, and inlet amount is 1000 kg/h, the
The operating condition of one-level rectifying column is：The kPa of absolute pressure 45,45 DEG C of tower top temperature, 87 DEG C of bottom temperature；The behaviour of second level rectifying column
It is as condition：The kPa of absolute pressure 60,87 DEG C of tower top temperature, 132 DEG C of bottom temperature；The operating condition of third level rectifying column is：Absolute pressure
30 kPa, 89 DEG C of tower top temperature, 122 DEG C of bottom temperature.
After above-mentioned separation, following technical parameter is obtained：
It should be understood that example as described herein and embodiment, only for explanation, those skilled in the art can make various according to it
Modifications and changes, without departing from the principles of the present invention, belong to protection scope of the present invention.
Claims (11)
1. a kind of method of acids classified utilization in biomass thermal conversion solution product, it is characterised in that by the biology of pretreatment
The acetic acid product that matter thermal transition product liquid is made up of the isolated various concentrations of multistage rectification unit.
2. the method for acids classified utilization in biomass thermal conversion solution product as claimed in claim 1, it is characterised in that：Liquid
Body product obtains 2% ~ 5% vinegar liquid that acid concentration is by first order rectifying column in tower top, and tower reactor product enters second level rectifying
Tower；Second level rectifying column tower top obtains acid concentration and is 10% ~ 40% or enters third level rectifying column without phenol vinegar liquid, tower reactor product；The
It is 8% ~ 60% or anhydrous vinegar liquid that three-level rectifying column tower top, which obtains acid concentration, and tower reactor obtains depickling pyrolysis oil.
3. the method for acids classified utilization in biomass thermal conversion solution product as claimed in claim 1, it is characterised in that institute
The thermal transition stated includes charing, fast pyrogenation or gasification.
4. the method for acids classified utilization in biomass thermal conversion solution product as claimed in claim 1, it is characterised in that institute
The tower group that the rectification cell stated is single column or multitower forms.
5. the method for acids classified utilization in biomass thermal conversion solution product as claimed in claim 1, it is characterised in that institute
The pretreatment stated includes gasification, centrifugation, filtering or extraction.
6. the method for acids classified utilization in biomass thermal conversion solution product as claimed in claim 1, it is characterised in that raw
Material includes agriculture and forestry organic waste material, livestock breeding industry discarded object or activated sludge.
7. the classified utilization method of acids in biomass thermal conversion solution product as claimed in claim 1, it is characterised in that liquid
Acids relative amount is 2 ~ 40% in body product.
8. the classified utilization method of acids in biomass thermal conversion solution product as claimed in claim 1, it is characterised in that second
The classification of acid product divides by standard of the content of water or acid.
9. the method for acids classified utilization in biomass thermal conversion solution product as claimed in claim 2, it is characterised in that the
One-level rectifying column operation absolute pressure is 10 ~ 120 kPa, and tower top temperature is 8 ~ 80 DEG C, and bottom temperature is 6 ~ 120 DEG C.
10. the method for acids classified utilization in biomass thermal conversion solution product as claimed in claim 2, it is characterised in that the
Two-stage rectification tower operation absolute pressure is 10 ~ 100 kPa, and tower top temperature is 47 ~ 110 DEG C, and bottom temperature is 83 ~ 150 DEG C.
11. the method for acids classified utilization in biomass thermal conversion solution product as claimed in claim 2, it is characterised in that the
Three-level rectifying column operation absolute pressure is 1 ~ 40kPa, and tower top temperature is 18 ~ 97 DEG C, and bottom temperature is 46 ~ 130 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710467293.8A CN107335247A (en) | 2017-06-20 | 2017-06-20 | A kind of method of acids classified utilization in biomass thermal conversion solution product |
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| CN201710467293.8A CN107335247A (en) | 2017-06-20 | 2017-06-20 | A kind of method of acids classified utilization in biomass thermal conversion solution product |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108208277A (en) * | 2017-12-21 | 2018-06-29 | 苏州市佳禾食品工业有限公司 | A kind of method that coffee-extract is extracted from coffee grounds |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203540098U (en) * | 2013-10-17 | 2014-04-16 | 山东绿林生物质材料科技有限公司 | Pyroligneous liquor refining equipment |
| CN105586064A (en) * | 2016-01-13 | 2016-05-18 | 河北天善生物技术有限公司 | Method for preparing refined wood vinegar from crop straw |
-
2017
- 2017-06-20 CN CN201710467293.8A patent/CN107335247A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203540098U (en) * | 2013-10-17 | 2014-04-16 | 山东绿林生物质材料科技有限公司 | Pyroligneous liquor refining equipment |
| CN105586064A (en) * | 2016-01-13 | 2016-05-18 | 河北天善生物技术有限公司 | Method for preparing refined wood vinegar from crop straw |
Non-Patent Citations (1)
| Title |
|---|
| 魏刚: "《化工分离过程与案例》", 30 June 2009, 中国石化出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108208277A (en) * | 2017-12-21 | 2018-06-29 | 苏州市佳禾食品工业有限公司 | A kind of method that coffee-extract is extracted from coffee grounds |
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Application publication date: 20171110 |