CN106942471A - A kind of method that hydrothermal carbonization processing bean dregs prepare feed - Google Patents
A kind of method that hydrothermal carbonization processing bean dregs prepare feed Download PDFInfo
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- CN106942471A CN106942471A CN201710216212.7A CN201710216212A CN106942471A CN 106942471 A CN106942471 A CN 106942471A CN 201710216212 A CN201710216212 A CN 201710216212A CN 106942471 A CN106942471 A CN 106942471A
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- bean dregs
- hydrothermal carbonization
- pressure
- acetic acid
- citric acid
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- 238000000034 method Methods 0.000 title claims abstract description 43
- 244000046052 Phaseolus vulgaris Species 0.000 title claims abstract description 35
- 235000010627 Phaseolus vulgaris Nutrition 0.000 title claims abstract description 35
- 238000003763 carbonization Methods 0.000 title claims abstract description 25
- 238000012545 processing Methods 0.000 title claims abstract description 18
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims abstract description 42
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims abstract description 39
- 238000006243 chemical reaction Methods 0.000 claims abstract description 6
- 229960000583 acetic acid Drugs 0.000 claims description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- 229910052799 carbon Inorganic materials 0.000 claims description 10
- 239000002253 acid Substances 0.000 claims description 7
- 239000002002 slurry Substances 0.000 claims description 6
- 230000035484 reaction time Effects 0.000 claims description 4
- 240000007909 Prosopis juliflora Species 0.000 claims description 3
- 239000012362 glacial acetic acid Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 244000100170 Phaseolus lunatus Species 0.000 claims 1
- 239000000052 vinegar Substances 0.000 claims 1
- 235000021419 vinegar Nutrition 0.000 claims 1
- 239000003377 acid catalyst Substances 0.000 abstract description 2
- 108010073771 Soybean Proteins Proteins 0.000 description 9
- 235000019710 soybean protein Nutrition 0.000 description 9
- 239000003054 catalyst Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 244000068988 Glycine max Species 0.000 description 4
- 235000010469 Glycine max Nutrition 0.000 description 4
- 239000003610 charcoal Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 230000014616 translation Effects 0.000 description 4
- 239000002351 wastewater Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 235000005979 Citrus limon Nutrition 0.000 description 2
- 244000131522 Citrus pyriformis Species 0.000 description 2
- 206010012735 Diarrhoea Diseases 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 2
- 241000282898 Sus scrofa Species 0.000 description 2
- 101710162629 Trypsin inhibitor Proteins 0.000 description 2
- 229940122618 Trypsin inhibitor Drugs 0.000 description 2
- 240000006677 Vicia faba Species 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000002753 trypsin inhibitor Substances 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 238000000944 Soxhlet extraction Methods 0.000 description 1
- 241000282887 Suidae Species 0.000 description 1
- 235000002096 Vicia faba var. equina Nutrition 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- FFBHFFJDDLITSX-UHFFFAOYSA-N benzyl N-[2-hydroxy-4-(3-oxomorpholin-4-yl)phenyl]carbamate Chemical compound OC1=C(NC(=O)OCC2=CC=CC=C2)C=CC(=C1)N1CCOCC1=O FFBHFFJDDLITSX-UHFFFAOYSA-N 0.000 description 1
- 229960000074 biopharmaceutical Drugs 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 239000002361 compost Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 244000013123 dwarf bean Species 0.000 description 1
- 235000005489 dwarf bean Nutrition 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- CJWQYWQDLBZGPD-UHFFFAOYSA-N isoflavone Natural products C1=C(OC)C(OC)=CC(OC)=C1C1=COC2=C(C=CC(C)(C)O3)C3=C(OC)C=C2C1=O CJWQYWQDLBZGPD-UHFFFAOYSA-N 0.000 description 1
- 150000002515 isoflavone derivatives Chemical class 0.000 description 1
- 235000008696 isoflavones Nutrition 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 230000000050 nutritive effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 235000018102 proteins Nutrition 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000000384 rearing effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004069 wastewater sedimentation Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 235000015099 wheat brans Nutrition 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
- Y02P60/87—Re-use of by-products of food processing for fodder production
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
The invention provides the method that a kind of hydrothermal carbonization processing bean dregs prepare feed, it is characterised in that adds two kinds of acid catalysts in two steps, i.e. add citric acid before entering the reactor, carries out partway adding acetic acid into reactor in reaction.
Description
Technical field
The present invention relates to soybean protein production and pollutant process field bean dregs system is handled there is provided a kind of hydrothermal carbonization
The method of standby feed.
Background technology
Soybean protein generally refers to the protein from soybean, and its amino acid composition is close with milk, solid without courage
Alcohol, and containing peculiar active components such as isoflavones, with higher nutritive value.Because soybean protein has above advantage, plus
Its preparing raw material it is with low cost be easy to get, technology of preparing is relatively easy, and it is rapid that domestic soybean protein prepares industry development, cut-off
The nearly various schools of thinkers of domestic large-scale soybean protein manufacturing enterprise in 2015, medium-sized and small enterprises are more.
The basic process of current domestic enterprise's soybean protein production is：Low-temp extraction-alkali soluble-acid is heavy-centrifugation-spray drying
Or ferment treatment, a large amount of bean dregs (about 5 tons of bean dregs of albumen per ton) can be wherein produced after alkali soluble, a large amount of waste water can be produced after the heavy centrifugation of acid
(albumen per ton about 20 tons of high COD, BOD waste water).If can not properly dispose, severe contamination problem can be caused, and if
It is also a kind of very big wasting of resources rich in albumen, the bean dregs of cellulose and waste water that these, which can not be made full use of,.
At present, the main whereabouts of bean dregs is feed producer, and waste water is mainly handled through Sewage Plant.Because bean dregs moisture content is high,
Corruption is easy to, and containing the trypsin inhibitor for easily causing diarrhea of pigs, directly uses or processes not as feed
It is convenient, therefore many times bean dregs can even be abandoned directly as Fertilizer application.Produced by the wastewater sedimentation for producing soybean protein
Sludge, i.e. bean dregs black mud, compost, fill all exist take up an area it is big, the problems such as pollution.Produced in soybean protein production process
The perfect condition of the integrated treatment of waste and utilization distance " minimizing, innoxious, stabilisation, recycling " also has very big difference
Away from.
The content of the invention
Applicant is introducing Germany Buttmann hydrothermal carbonization treatment technology building equipments, actual motion processing urban life
Further optimization has been carried out on the basis of sewage plant sludge (ground such as Beijing, Yanzhou, Jining) to hydrothermal carbonization handling process simultaneously
Attempt to extend its scope of application.In experiment, it has been found that hydrothermal carbonization technology can be completely used for processing bean dregs and bean dregs are black
Mud, can effectively reduce both moisture content and improve its nutrient composition.By existing hydrothermal carbonization catalyst type and addition
Mode (disposable before entering the reactor to add the concentrated sulfuric acid) is changed to substep addition twice and (adds lemon before entering the reactor
Lemon acid, carries out partway adding acetic acid into reactor in reaction), it can preferably improve product moisture content and preferably be subtracted with realizing
Amount/preservation effect.High-temperature process can effectively eliminate trypsin inhibitor activity simultaneously, and no use can in processing procedure in addition
There can be the strong acid (may be remained with the cavity that local mud is produced a small amount of not with the well-mixed acid of other compositions) of safety problem,
Bean dregs processing product can be used directly as feed.
Raw soybeans pass through during heretofore described " bean dregs " refer to soybean protein production or other soybean further process
The solid waste produced after processing.
On the one hand there is provided the method that a kind of hydrothermal carbonization processing bean dregs prepare feed, including step：
A. bean dregs are collected；
B. bean dregs are delivered into reactor, during which adds citric acid；
C. hydrothermal carbonization reaction is carried out in the reactor, during which adds acetic acid；
D. the biological carbon slurry of generation is collected；
E. plate press-dehydrating, is crushed, and pack is used as feed.
The citric acid used in further aspect, this method is solid citric acid, and acetic acid is glacial acetic acid.
The citric acid adding amount used in further aspect, this method is 1-2% (w/v), and acetic acid addition is 1-2%
(v/v)。
The citric acid adding amount used in further aspect, this method is 2% (w/v), and acetic acid addition is 1.5%
(v/v)。
Further aspect, hydrothermal carbonization temperature is 150-200 DEG C, and pressure is 10-20bar, and the time is 60-150 minutes.
Further aspect, hydrothermal carbonization temperature is 150 DEG C, and pressure is 15bar, and the time is 120 minutes.
Further aspect, hydrothermal carbonization adds acetic acid when proceeding to anticipation reaction time a quarter.
Collect what is produced under conditions of safeguards system operating pressure by pressure relief system in further method, step d
Biological carbon is starched, and during which receives the heat that biological carbon is starched by heat-exchange system, and obtaining heat is used to exist by preceding heat-exchange system
Bean dregs are preheated in step b, carbon slurry stays overbottom pressure to deliver to buffer reservoir after being depressured by depressurized system.
Pressure in further aspect, reactor is provided by the pump of conveying bean dregs.
Brief description of the drawings
Accompanying drawing 1 is the complete process flow block diagram of bean dregs hot water carbonization treatment technology.In figure：1st, loading hopper, 2, pressurization
Pump, 3, front heat exchanger system, 4, recuperation of heat, 5,1# catalyst toss areas, 6, reactor, 7, rear heat exchange system, 8, unload
Pressure system, 9, carbon slurry warehouse, 10, frame dehydration device, 11, wastewater treatment (options), 12,1# catalyst add pump, 13,2#
Catalyst adds pump, and 14, charcoal heat-conducting oil furnace, 15, filtrate tanks, 16, feed bin, A, the bean dregs of moisture content 75%, B, precipitation
Thing feedback (optional), water returns to factory's water inlet, D, charcoal cake after C, processing.
Accompanying drawing 2 is the equipment appearance figure (3000 tons year disposal ability) that applicant's actual treatment bean dregs are used.
Embodiment
The processing of the bean dregs of embodiment 1
Bean dregs samples sources：Shandong Xing Yu soybean biologicals Co., Ltd produces bean dregs, moisture content about 80%.
The processing procedure of the present invention：
A. bean dregs are collected using enclosing coil；
B. bean dregs are delivered into reactor, during which adds 2% (w/v) citric acid and the bean dregs of heat-exchange system preheating in the past；
C. hydrothermal carbonization reaction is carried out in the reactor, and hydrothermal carbonization temperature is 150 DEG C, and pressure is 15bar, and the time is
120 minutes, react pump of pressure when proceeding to about 30 minutes in addition glacial acetic acid 1.5% (v/v), reactor by conveying bean dregs
There is provided；
D. the biological carbon for generation being collected under conditions of safeguards system operating pressure by pressure relief system is starched, during which by rear
Heat-exchange system cools and reclaims heat；
E. plate press-dehydrating, is crushed, and pack is used as feed.
Control treatment process 1：
Basic process wherein being added without acid catalyst, and adjusts hydrothermal carbonization temperature with the processing procedure of the present invention
To 180 DEG C, pressure to 20bar, the time was to 150 minutes.
Control treatment process 2：
Basic process is with processing procedure of the invention, wherein only adding the conduct of 98% concentrated sulfuric acid 1.5% in stepb
A kind of single catalyst.
Control treatment process 3：
Basic process is with processing procedure of the invention, wherein only adding the conduct of 98% concentrated sulfuric acid 1.5% in stepb
A kind of single catalyst, and hydrothermal carbonization temperature is adjusted to 180 DEG C, pressure to 20bar, the time was to 150 minutes.
Above-mentioned processing procedure uses identical equipment, (1.5 tons) progress of identical bean dregs sample size.
The effect of each processing method compares in the embodiment 1 of embodiment 2
Determine gained charcoal cake moisture content, protein content (Kjeldahl's method), fat content (soxhlet extraction methods)
As a result show, compared to existing hydrothermal carbonization method, it is aqueous that the method for the present invention can more effectively reduce bean dregs
Rate is preferably to realize decrement, while extending the holding time (data are shown in embodiment 3)；Shortening the reaction time, (effect is better than reaction
Time longer control 1 and 3)；Effectively increase protein content in product and then improve feeding quality (even if excluding moisture content
Difference, the protein content of the inventive method product is also apparently higher than control, and this is probably to add two kinds of acid by substep to produce more
Good broken wall decomposable process causes)；The method of the present invention has no in construction and operating cost with existing hydrothermal carbonization treatment technology
Significant difference (acetic acid and citric acid are cheap, and operation and preservation are than concentrated sulfuric acid safety).
The actual feed of embodiment 3 is prepared and used
The bean dregs moisture content that plate press-dehydrating is obtained is low, is adapted to the storage of transport certain time.A former bean dregs air storage left side on the 2nd
The right side, which will ferment, produces extremely niff, and operating personnel do not do protection and are difficult to approach, and the treated outdoor heap of charcoal cake
Put and just begun with after 15 days the generation of obvious corrupt smell.
The bean dregs feed of the present invention is used for each 100 or so the swine rearings of 2 batches, peasant household's reaction with 20% addition
Pig upgrowth situation is normal, and the obvious related group diarrhoea of no bean dregs occurs.
The present invention produce bean dregs feed can also mix laggard one-step fermentation processing with wheat bran etc., for the domestic animals such as laying hen man
Fowl.
Claims (9)
1. a kind of method that hydrothermal carbonization processing bean dregs prepare feed, including step：
A. bean dregs are collected；
B. bean dregs are delivered into reactor, during which adds citric acid；
C. hydrothermal carbonization reaction is carried out in the reactor, during which adds acetic acid；
D. the biological carbon slurry of generation is collected；
E. plate press-dehydrating, is crushed, and pack is used as feed.
2. the method described in claim 1, wherein the citric acid used is solid citric acid, acetic acid is glacial acetic acid.
3. the method described in claim 2, wherein the citric acid adding amount used is 1-2% (w/v), acetic acid addition is 1-
2% (v/v).
4. the method described in claim 3, wherein the citric acid adding amount used is 2% (w/v), acetic acid addition is 1.5%
(v/v)。
5. any one of claim 1-4 method, wherein hydrothermal carbonization temperature are 150-200 DEG C, pressure is 10-20bar, time
For 60-150 minutes.
6. the method described in claim 5, wherein hydrothermal carbonization temperature are 150 DEG C, pressure is 15bar, and the time is 120 minutes.
7. any one of claim 1-6 method, wherein hydrothermal carbonization add vinegar when proceeding to anticipation reaction time a quarter
Acid.
8. in any one of claim 1-7 method, wherein step d by pressure relief system safeguards system operating pressure condition
It is lower to collect the biological carbon slurry produced, the heat that biological carbon is starched during which is received by heat-exchange system, obtaining heat is used for before passing through
Heat-exchange system preheats bean dregs in stepb, and carbon slurry stays overbottom pressure to deliver to buffer reservoir after being depressured by depressurized system.
9. the pressure in any one of claim 1-8 method, wherein reactor is provided by the pump of conveying bean dregs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710216212.7A CN106942471B (en) | 2017-04-05 | 2017-04-05 | Method for preparing feed by treating bean dregs through hydrothermal carbonization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710216212.7A CN106942471B (en) | 2017-04-05 | 2017-04-05 | Method for preparing feed by treating bean dregs through hydrothermal carbonization |
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| Publication Number | Publication Date |
|---|---|
| CN106942471A true CN106942471A (en) | 2017-07-14 |
| CN106942471B CN106942471B (en) | 2021-04-27 |
Family
ID=59474372
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111248365A (en) * | 2020-03-20 | 2020-06-09 | 海南歌颂饲料有限公司 | Feed for improving utilization rate of feed for aquatic young animals and preparation method thereof |
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| CN106942471B (en) | 2021-04-27 |
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