CN108624625A - A kind of lignocellulosic material supply model being suitable for Large Scale Biology refining - Google Patents
A kind of lignocellulosic material supply model being suitable for Large Scale Biology refining Download PDFInfo
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- CN108624625A CN108624625A CN201710175780.7A CN201710175780A CN108624625A CN 108624625 A CN108624625 A CN 108624625A CN 201710175780 A CN201710175780 A CN 201710175780A CN 108624625 A CN108624625 A CN 108624625A
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- lignocellulosic material
- biorefinery
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P7/00—Preparation of oxygen-containing organic compounds
- C12P7/02—Preparation of oxygen-containing organic compounds containing a hydroxy group
- C12P7/04—Preparation of oxygen-containing organic compounds containing a hydroxy group acyclic
- C12P7/06—Ethanol, i.e. non-beverage
- C12P7/08—Ethanol, i.e. non-beverage produced as by-product or from waste or cellulosic material substrate
- C12P7/10—Ethanol, i.e. non-beverage produced as by-product or from waste or cellulosic material substrate substrate containing cellulosic material
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P2201/00—Pretreatment of cellulosic or lignocellulosic material for subsequent enzymatic treatment or hydrolysis
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
Abstract
The present invention discloses a kind of lignocellulosic material supply model being suitable for Large Scale Biology refining.In the technique for producing alcohol fuel and biological-based chemicals by biorefinery using lignocellulosics such as stalks, transportation cost accounts for the 50 75% of cost of material；Transportation cost is increased sharply with the increase of collect range, seriously constrains the scale of biorefinery factory.The present invention improves the biorefinery factory that is transported to after raw material traffic density according to demand periodically or non-periodically and carries out subsequent biorefinery processing using pre-treatment and pretreatment is carried out to lignocellulosic material on the spot.The present invention improves 3.5 times by being pre-processed to lignocellulosic material, by its bulk density, significantly reduces the transportation cost of raw material；Compared with traditional raw material supply model, cellulosic ethanol production cost reduction 14% can establish the ultra-large biorefinery factory of 10,000 ton of dry lignocellulosic material of processing daily in the northeast of China and East China.
Description
【Technical field】
The present invention relates to biorefinery of lignocellulose fields, are a kind of wood fibres being suitable for Large Scale Biology refining
Plain raw material supply model.
【Background technology】
For general processing enterprise, the cost of unit product can be reduced by expanding the scale of production.But biology is refined
Factory processed, expansion scale mean that the capture range for expanding lignocellulosic material.The low-density of lignocellulosic material, height
The characteristics of dispersion, difficult storage, and by the characteristic of the factors such as season, weather seriously restricted so that its transportation cost is with collection
The increase of range and sharply increase.The lignocellulose biomass raw material of resource distribution dispersion is carried out in a short time extensive
Collection, be packaged and be transported to factory and carry out storage processing, be still significant challenge to the jejune raw material supply chain of biorefinery.
Realize that the long period continuous operation of Large Scale Biology refining factory, important prerequisite are low cost, efficient lignocellulosic
The foundation of raw material supply chain.
In terms of biomass collection, it is regional station generally to use raw material supply chain pattern in industrialization process both at home and abroad at present
The mode that point is collected, i.e., will be collected into small-sized collecting zone lignocellulosic material be packaged in each website, balling-up or briquetting,
10 times that raw material is compressed to loose condition (of surface) density or more transport biorefinery factory again, but the equipment cost of this mode and
Power consumption is very high.In recent years, professor Dale etc. of the state university of Michigan, United States proposes a kind of improved regional station point collection side
Method, i.e., be dispersed to region website by pretreatment operation during biorefinery, and biomass adds by the swollen quick-fried preprocessing process of liquefied ammonia
Biomass is in solid volume morphing and is generated without waste water after work, will be pre-processed again after increasing material density by drying and at nodularization
Raw material is transported to biorefinery factory, to reduce raw material compiling costs.However, dispersion preconditioned pattern requirement is pretreated
Cheng Jiben non-wastewater discharges, low energy consumption, equipment are easy to minimize, while product must realize high density form and easily long-term storage
It deposits, therefore not every preprocess method is adapted to dispersion pretreatment.AFEX (ammonia fiber explosion pretreatment) is to be applied to
Disperse first case of preconditioned pattern, but AFEX pretreated material meta-alkalescences, long term storage are more difficult；AFEX is pre-processed
After still need to take and be dried to spheroidising and reach higher material density；High temperature reduces the fermentable saccharide of raw material at nodularization process
Content；Power consumption and equipment cost for Ammonia recovery is higher.Other preconditioning techniques, such as conventional dilute acid pretreatment, diluted alkaline (or
Deacetylation) method, neutral hot-water process etc., then the feature in the form of its a large amount of discharge of wastewater and its slurry, it is pre- to be not suitable for dispersion
Tupe.
【Invention content】
The present invention is the strategy based on biorefinery to solve biomass material supply problem.Purpose is to solve biomass
The excessively high problem of transportation cost.The transportation cost of biomass material can be greatly lowered in this method, and then reduces biorefinery
Product cost expands biorefinery plant layout.
To achieve the goals above, the technical solution adopted by the present invention is：
Raw material is divided into several small-sized collecting zones with collecting, regional processing website is established in small-sized collecting zone,
The lignocellulosic material being collected into small-sized collecting zone is carried out pre-treatment and dry type dilute acid pretreatment by regional processing website,
Then simple mechanical jordaning is carried out to the raw material of dry type dilute acid pretreatment.Treated raw material is according to the need of biorefinery factory
Factory is transported to be processed or store on the spot.
Compared with prior art, the present invention has the advantage that as follows with effect：
1, the present invention can greatly improve the traffic density (3.5 times) of lignocellulosic material, reduce lignocellulosic material
Transportation cost (53%), and then reduce biorefinery product cost (14%), as shown in Figure 1；
2, the acidic environment that the present invention is created by the mortifier generated in dry method dilute acid pretreatment and pretreatment makes
Treated material can long term storage without being infected by miscellaneous bacteria microorganism.Meanwhile higher bulk density mean it is relatively low
Storage space, to lower storage cost；
3, power consumption of polymer processing and the fund input of regional processing website unit biomass material can be greatly lowered in the present invention, and
And emit no waste water, as shown in table 1；
Table 1 is compared using dry type dilute acid pretreatment and by the pretreated region website of cellulose explosion
4, the present invention keeps foundation suitable with intensive petrochemical industry refining scale by the operation of distributing dry type dilute acid pretreatment
Ultra-large biorefinery factory cost may, it is dry 10,000 ton of processing daily can be established in the northeast of China and East China
The ultra-large biorefinery factory of lignocellulosic material, as shown in Figure 2.
【Description of the drawings】
Fig. 1 disperse pretreatment operation and traditional centralized biomass collection operation transportation cost and cellulosic ethanol at
This compares
The optimal biorefinery Factory distributions of Fig. 2
Centralized collection method traditional two kinds of lignocellulosic material collection method schematic diagram (a) of Fig. 3；(b) distributing
Collection method.Annulus is total collecting zone, and solid five-pointed star is regional processing website, and hexagon is that regional processing website collects model
It encloses, solid circles are biorefinery factory, and short arrow is the lignocellulosic material transportation logistics collected after being packaged, and long arrow is
The lignocellulosic material transportation logistics after the processing of regional processing website.
Fig. 4 regional processing website lignocellulosic material process charts
【Specific implementation mode】
The present invention production technology include：Raw material is divided with collecting according to the spacial distribution density of lignocellulosic material
For a certain number of small-sized collecting zones；It is (single in regional processing website that small-sized collecting zone is collected into lignocellulosic material
The treatment scale of a regional processing website is about 300 tons of dry raw material/days) dedusting and dry method dilute acid pretreatment are crushed, then
Pretreated material is subjected to simple mechanical jordaning；Regional processing website finally will be stored in after treated material jolt ramming
Or carry out subsequent biorefinery processing according to the biorefinery factory that is transported to of production requirement periodically or non-periodically.
Embodiment 1
Traditional centralised collection mode collects wood fibre in the border circular areas using biorefinery factory as the center of circle
Plain raw material, as shown in Figure 3a.Lignocellulosic material collecting zone is assumed to be circle, biorefinery factory is located at the center of circle.That
The transportation cost for the lignocellulosic material being collected on the equidistant annulus of biorefinery factory is identical.With life
Object refines the expansion of plant layout, and the collect range of raw material increases, then the transportation cost of raw material accordingly increases.Do not located in advance
Packing (rectangular) density of the maize straw of reason is only 114kg/m3 (moisture content 15%), and dry raw material traffic density only has
114 × (1-15%)=96.90kg/m3.The maize straw for biorefinery, the wheat collected with Jilin Province in 2013
For stalk and rice straw agricultural waste material, when using centralized raw material collection mode, the transportation cost of raw material is with biology
Refining plant layout increases and increased amplitude is very big, sees Fig. 1.Cellulosic ethanol cost increases with biorefinery plant layout
Rise after falling before, minimum 1.97 dollar/gallon of cost.Biorefinery plant layout is 2,000 ton day at this time, raw material
Transportation cost is 0.39 dollar/gallon ethyl alcohol.When using the collection mode of centralization, in the biorefinery work that Jilin Province is optimal
Factory rules and regulations mould is to handle 2,000 tons of lignocellulosic materials daily.
Embodiment 2
Raw material is divided into a certain number of small-sized collecting regions with collecting by distributing lignocellulosic material collection mode
Domain increases the lignocellulosic material being collected into small-sized collecting zone by preceding processing and after pre-processing in regional processing website
Add the bulk density of lignocellulosic material, then transports the further processing of biorefinery factory again, as shown in Figure 3b.First
The collecting zone of lignocellulosic material is divided into several small-sized collecting zones, regional processing website is established in small-sized collection
The center in region.The lignocellulosic material that the processing of regional processing website is collected into out of small-sized collecting zone of the place.Region
Treatment station lignocellulosic material process flow is as shown in Figure 4：First, using chaffcutter that the lignocellulosic being collected into is former
Material carries out preliminary crushing, is dusted removal of impurities by roll-type dust removal machine or vibrating screen, original is further decreased using pulverizer
The size of material.After a series of processing, the grain size of lignocellulosic material is about 1cm；Then, lignocellulosic material is carried out
Dry method dilute acid pretreatment, pretreatment condition are：The solid-to-liquid ratio 2 of stalk solid and dilute sulfuric acid:1 (mass ratio), sulfuric acid dosage 2.5g/
100g dry raw materials, 175 DEG C, 50rpm is handled 5 minutes, and stalk solid content is 50% or so after pretreatment.After pretreatment in stalk
Cellulose and hemicellulose level be respectively 37.86 ± 0.47% and 4.70 ± 0.24% (after maize straw pretreatment as a result,
It is different and different according to raw material).Then high shear breakage pump is used to carry out simple mechanical jordaning, it will be few in material after pretreatment
Amount long fibre element is smashed, and the pipeline and pump that block subsequent operation are prevented.Finally will treated lignocellulosic material jolt ramming, survey
The method of determining is the container using 272ml, fills the maize straw after pre-processing and falls 25 times from 15cm height, after calculating of weighing
Bulk density after being pre-processed after material jolt ramming, is repeated 3 times.The body of maize straw after pre-processing is measured in this way
Product density is 743kg/m3(solid content 46%), dry raw material traffic density are 743 × 46%=341.78kg/m3..So
It is compared with the maize straw being not handled by, the traffic density of dry raw material improves 3.5 times after treatment.
Regional processing website by the lignocellulosic material being collected into the root after above-mentioned processing improves its traffic density
It is further processed according to the biorefinery factory for needing to store or transport on the spot.Several such regional processing websites are
Biorefinery factory provides raw materials for production.
By calculating, the optimal process scale of regional processing website is about 300 ton days.In this way according to lignocellulosic original
The area of the difference of the spacial distribution density of material, small-sized collecting zone is different.Similarly by taking Jilin Province as an example, as shown in Figure 1, making
It is significantly less than centralization with the increased amplitude of biorefinery scale with the transportation cost of distributed raw material collection method, raw material
Collection method.And the cost of cellulosic ethanol increases first rapid decrease with biorefinery scale, when biorefinery scale surpasses 10,
Cellulosic ethanol cost does not change substantially when 000 ton day.The biology that scale surpasses 10,000 ton days can be established in Jilin Province
Factory is refined, cellulosic ethanol cost is 1.70 dollars/gallon at this time, and the transportation cost of raw material is 0.41 dollar/gallon ethyl alcohol.
And it is 10 to use centralized raw material collection mode, biorefinery scale, when 000 ton day, raw material transportation cost is up to 0.88 U.S.
Member/gallon ethyl alcohol.So using distributing raw material collection mode, the traffic density of lignocellulosic material improves 3.5 times, wood
The transportation cost of matter cellulosic material reduces 53%, cellulosic ethanol cost reduction 14%, and biorefinery scale can surpass
Cross 10,000 ton days.
Lignocellulosic material transportation cost computational methods：
Lignocellulosic material density is relatively low, and the cost of transportational process depends primarily on its volume rather than quality, here
Assuming that using truck transport maize straw.The collection means of transportation of lignocellulosic material is divided into two kinds.
The first is traditional centralised collection mode, i.e., is collected in the border circular areas using biorefinery factory as the center of circle
Lignocellulosic material, as shown in Figure 3a.Total lignocellulosic material freight charges C in collecting zonet1($) calculating definite integral is micro-
Meta analysis method.It is straight line to consider transportation range not, introduces tortuosity β (taking 1.5) and is corrected, then has：
Wherein, Pm1=Pv/[ρ1(1-w1)] be unit quality lignocellulosic material unit distance freight (/
(ton km)), PvIndicate the freight (0.07/ (m of $ of unit volume unit distance3·km)).α is lignocellulosic material
Spacial distribution density (take 2013 Jilin Province, three kinds of Primary Crop Straw distribution densities in 2013,109.38 tons/km2), ρ1For wood
Packing density (the 114kg/m of matter cellulosic material3), w1For the moisture content (15%) of lignocellulosic material after packing, θ is fortune
The loss late (4.94%) of stalk during defeated.R is the linear transport distance (km) of lignocellulosic material.To circle center distance
Collectable lignocellulosic material freight charges are equal on (r, km) equal annulus, and annulus approximation is looked at rectangle, then round
The area of ring is 2 π r*dr (km3), then collectable lignocellulosic material quality (2 π r*dr* α * (1- θ), ton) multiplies on annulus
With transportation range (r* β, km), multiplied by with the freight (P of unit mass lignocellulosic material unit distancem1, $/(ton
Km) it is exactly gross freight Ct1。
Second is distributing lignocellulosic material collection mode, i.e., by the lignocellulosic being collected into zonule original
Expect, in the traffic density of regional processing website increase lignocellulosic material after preceding processing and pretreatment, then to transport again
Biorefinery factory is further processed, as shown in Figure 3b.It will be collected when calculating zonule lignocellulosic material transportation cost
Range is approximately that area is SiCircle, ignore the small overlapping of different community domain capture range.Cell is calculated according to formula (2)
The freight charges of the lignocellulosic material freight charges that domain collects, the central area lignocellulosic material where central factory also make
It is calculated with formula (2).The freight charges of maize straw to biorefinery factory are after i-th of zonule pretreatment：
Ct2i=QiβLiPm2 (3)
Wherein Pm2=Pv/[ρ2(1-w2)], for the traffic expense of lignocellulosic material unit distance after the pretreatment of unit quality
With [$/(ton km)].ρ2For packing density (bulk density after jolt ramming, the 743kg/m of material after pretreatment3), w2To locate in advance
The moisture content of material after reason.QiFor the lignocellulosic material amount (ton) that i-th of zonule collects, LiFor i-th of zonule
To the distance (km) of biorefinery factory.The gross freight for then disperseing stalk under preconditioned pattern is：
WhereinFor the collect range (ton/m of i-th of zonule3), QcCentered on region collect
Stalk amount, RcCentered on region collect range (km).By lignocellulosic material freight charges in n zonuleAnd its freight charges (Q of the material transportation to biorefinery factory after pretreatmentiβLiPm2, $) and
The lignocellulosic material freight charges of zonule where biorefinery factory Adduction is point
Dissipate the total Transportation Expenditure C of formula lignocellulosic material collection modet2。
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
Member, without departing from the inventive concept of the premise, can also make several improvements and modifications, these improvements and modifications also should be regarded as
In protection scope of the present invention.
Claims (3)
1. a kind of lignocellulosic material supply model being suitable for Large Scale Biology refining, it is characterised in that：To wood fibre
Plain raw material carries out distributing pretreatment, i.e., processing and pretreatment unit before the places of origin of raw materials is set up, to lignocellulosic material into
Row dry method dilute acid pretreatment to improve its bulk density, then according to production requirement periodically or non-periodically be transported to extensive life
Object refines factory and carries out subsequent biorefinery processing；It is single that one Large Scale Biology refining factory corresponds to several distributing pretreatments
Member.
2. a kind of lignocellulosic material supply model being suitable for Large Scale Biology refining according to claim 1,
It is characterized in that distributed pretreatment, i.e., dry method dilute acid pretreatment is carried out to lignocellulosic in the places of origin of raw materials, it is wooden after pretreatment
The solid content of matter cellulosic material is 40-60wt%, and the bulk density after jolt ramming reaches 0.7-0.9kg/m3, dry mass volume density
Than original maize straw (15wt% water content, 114kg/m3Be packaged density) it is 3.5 times high, and do not need additional drying and at
The operations such as nodularization (or briquetting).
3. a kind of lignocellulosic material supply model being suitable for Large Scale Biology refining according to claim 1,
It is characterized in that several distributed pretreatment units supply a biorefinery factory, factory is refined to meet Large Scale Biology
Demand to raw material.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115081746A (en) * | 2022-07-27 | 2022-09-20 | 烟台尚美丽家新能源有限公司 | Biomass raw material supply chain management system and method based on big data |
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| US6228177B1 (en) * | 1996-09-30 | 2001-05-08 | Midwest Research Institute | Aqueous fractionation of biomass based on novel carbohydrate hydrolysis kinetics |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115081746A (en) * | 2022-07-27 | 2022-09-20 | 烟台尚美丽家新能源有限公司 | Biomass raw material supply chain management system and method based on big data |
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