CN205528669U - System for enzyme process preparation biodiesel - Google Patents
System for enzyme process preparation biodiesel Download PDFInfo
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- CN205528669U CN205528669U CN201620075443.1U CN201620075443U CN205528669U CN 205528669 U CN205528669 U CN 205528669U CN 201620075443 U CN201620075443 U CN 201620075443U CN 205528669 U CN205528669 U CN 205528669U
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- reactor
- alcohol
- short chain
- compensator
- chain alcohol
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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
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Abstract
The utility model belongs to the biochemical industry field relates to a system for enzyme process preparation biodiesel, include the reactor, circulating air condenser, circulating fan and the pure surge drum that connect gradually according to gas flow direction to and the jar is added to the mellow wine of being connected, being arranged in the back reaction ware to add short chain mellow wine with the reactor. Utilize the utility model discloses a system can be fast, the water among effective desorption reaction system, and greatly reduced biodiesel's acid number improves the diesel oil quality, is fit for industry large -scale production and uses.
Description
Technical field
The utility model belongs to biological chemical field, relates to the system of a kind of process for preparing biodiesel by enzyme.
Background technology
Biodiesel is a kind of novel free of contamination regenerative resource, and it is at flash-point, combustion efficiency, sulfur-bearing
Amount, oxygen content, arene content, burning oxygen demand aspect are superior to petrifaction diesel, and other index and petrochemical industry
Diesel oil is suitable.In combustion tail gas, suspended particulate, CO, sulfide and hydrocarbon are all greatly lowered,
Possesses environment friendly.The research of biodiesel and application have had been subjected to pay close attention to widely.
Biodiesel is mainly produced by chemical method or biological enzyme at present, glyceride stock pass through transesterification
Or long-chain fat acid alcohol (ester) the class material that esterification generates.Transesterification is that short chain alcohol (such as methyl alcohol) is with sweet
Grease generation transesterification reaction, is transformed into three parts of (first) esters by a glyceride, and glycerine is displaced by alcohol simultaneously
Come:
Esterification is aliphatic acid and short chain alcohol (such as methyl alcohol) occurs esterification, generate such as (first) ester and
Water.
Glyceride stock is mainly derived from waste cooking oil (waste oil, hogwash fat) and the acidifying of grease concise leftover bits and pieces
After acidification oil.Waste oil, hogwash fat, acidification oil these three oil all contain a certain amount of free fatty,
Waste oil acid number is typically at 30～90mgKOH/g oil, and hogwash fat acid number is typically 10～20mgKOH/g
Oil, the general acid number of acidification oil is at 120～150mgKOH/g oil.This quasi-grease because containing free fatty,
The water generated in the esterification process generating biodiesel can hinder carrying out further of esterification: according to first
The difference of alcohol consumption, the acid number reacting final biodiesel coarse ester is typically oily 1.2～10mgKOH/g,
After distillation, acid number is typically more than 1mgKOH/g oil, is unsatisfactory for Chinese biological diesel oil national standard
The acid number that GB/T 20828-2007 " diesel fuel blending biodiesel (BD100) " requires≤
0.8mgKOH/g oil, be more unsatisfactory for American-European requirement≤0.5mgKOH/g oil.
In order to ensure that the acid number of biodiesel is the most close or meets GB, need in biodiesel course of reaction
Repeatedly to separate the water that reaction produces, the consumption of the most anhydrous short chain alcohol also to strengthen, the short chain that reaction is reclaimed
Alcohol needs again short chain alcohol rectifying column to purify, and cause in this section is relatively costly.Also molecular sieve is utilized to take off
The way of water makes the water content in reaction system less than 500ppm so that acid number≤0.5mgKOH/g oil, but
Regenerating molecular sieve activation energy consumption is high, and short chain alcohol loss is big, is unsuitable for commercial Application.Tsing-Hua University discloses
One utilizes the online dewatering of low temperature short chain alcohol to promote biodiesel production rate (CN103131735A), but
The too low meeting of short chain alcohol temperature make slough in reaction system while moisture the short chain alcohol in reaction system also by
Excess is taken out of outside system；And along with the carrying out of reaction, short chain alcohol concentration reduces, esterification is caused to slow down,
Need again to change anhydrous short chain alcohol；Owing to the method is to carry out at laboratory level, when being applied to industry water
When producing all one's life, substantial amounts of for consumption low-temperature anhydrous short chain alcohol carrying out be dehydrated guarantee and produces continuously, cost is big
Increasing greatly, energy consumption is notable；And change low-temperature anhydrous short chain alcohol and also will increase workload, Renewal process also makes
Throughput rate slows down.
Utility model content
What the purpose of this utility model was to provide a kind of process for preparing biodiesel by enzyme being suitable to commercial Application is
System, to improve biodiesel production rate and to improve product quality.
The system of process for preparing biodiesel by enzyme of the present utility model includes:
Reactor, carries out esterification for reactant grease and short chain alcohol；
Circulating air condenser, its inlet end is connected with the top of reactor, and outlet side is connected with circulating fan；
Circulating fan, its inlet end is connected with the outlet side of circulating air condenser, its outlet side and alcohol compensator
Connect；
Alcohol compensator, its inlet end is connected with the outlet side of circulating fan, and outlet side connects with the bottom of reactor
Connect；And,
Tank added by alcohol, and its material outlet is connected with reactor, for adding short-chain alcohol in reactor.
Preferably, described system also includes that condensate liquid receives tank, for receiving the condensate liquid of circulating air condenser
Body.
Preferably, in described alcohol compensator, the bottom of reactor includes gas distributor respectively.
Preferably, described gas distributor is taper type, with sieve plate arrangement mode air inlet.
Preferably, described alcohol compensator includes condenser system, the temperature of short chain alcohol in maintaining alcohol compensator
It it is 0～25 DEG C.
Preferably, described reactor is airlift reactor；It is further preferred that described reactor is one-level
Or multistage reactor.
System of the present utility model, without in the gas-lifting type reaction system of foreign gas, utilizes circulating air condenser
Separating reaction produce water, utilize the water suction short chain alcohol in alcohol compensator to be dehydrated, it is achieved fast eliminating reacted
The water byproduct of Cheng Shengcheng；Add tank by alcohol in reaction system, add anhydrous short chain alcohol, change short chain alcohol
Additional way, it is ensured that reaction substrate short chain alcohol concentration so that reactant is sufficient, and driving a reaction is quickly carried out.
In thick ester after esterification, acid number is less than 0.5mgKOH/g oil, i.e. can obtain low acid number, height after simple distillation
The biodiesel of quality.System of the present utility model is utilized to prepare biodiesel so that short chain alcohol concentration and water
Content is the most controlled, improves the efficiency of esterification, and the consumption of water suction short chain alcohol greatly reduces, and is suitable for work
Industry large-scale production and application.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the system of process for preparing biodiesel by enzyme of the present utility model；Wherein 1 is reactor,
2 is circulating air condenser, and 3 is circulating fan, and 4 is that condensate liquid receives tank, and 5 is alcohol compensator, and 6 is that alcohol is mended
Add tank；
Fig. 2 is the structural representation of the reactor bottom including gas distributor, and wherein, 7 is sieve plate arrangement device,
8 is air chamber, and 9 is air inlet.
Detailed description of the invention
Describe system of the present utility model in detail in conjunction with accompanying drawing, but content of the present utility model is not limited to this.
As it is shown in figure 1, the system of preparation biodiesel of the present utility model includes that reactor 1 is (concrete real
Executing in example, described reactor 1 is airlift reactor), the top of reactor 1 and circulating air condenser 2
Inlet end be connected, the outlet side of circulating air condenser 2 is connected with the inlet end of circulating fan 3；Circulated air
The outlet side of machine 3 is connected with the inlet end of alcohol compensator 5, the outlet side of alcohol compensator 5 and reactor 1
Bottom connect, thus form an airflow circulating.Circulating air condenser 2 is for condensation and separates from reaction
Water in the gas extracted out in device and short chain alcohol；Circulating fan 3, for bleeding from the top of reactor, makes gas
Body enters circulating air condenser condensation dehydration, then enters back into circulating fan；Equipped with low temperature in alcohol compensator 5
Water suction short chain alcohol, is used for gas is further dried；This system also includes that tank 6 added by alcohol, its material outlet with
Reactor 1 connects, for adding short-chain alcohol in reactor 1, pure and strong to ensure the short chain in reaction system
Degree；And condensate liquid receives tank 4, for receiving the condensed fluid of circulating air condenser.
The bottom of described reactor 1 and alcohol compensator 5 be internally provided with gas distributor so that gas can
Even in reaction system or water suction short chain alcohol, to contact with material fully or dehydrated, to improve gas-liquid
Mass-transfer efficiency.As in figure 2 it is shown, described gas distributor is taper type, gas enters air chamber from air inlet 9
8, enter in sieve plate mode from sieve plate arrangement device 7.
Described alcohol compensator 5 includes condenser system, and in maintaining alcohol compensator 5, the temperature of short chain alcohol is
0～25 DEG C.
Described reactor can be one or more levels reactor, depending on specific embodiments.
When preparing biodiesel, reactant grease, short chain alcohol and biology enzyme are put into reactor 1,
Circulating fan 3 is bled from the top of reactor 1, make water that the gas in reactor carries in reactor and
Part short chain alcohol etc. enter in circulating air condenser 2 and condense, and the speed of evacuation is generally 1～5vvm (vvm table
Show the gas flow (cube) that every cube of volume of material is passed through in per minute), in preferred embodiments,
The described speed of evacuation is 1～2vvm.The condensation temperature of circulating air condenser 2 is-10～10 DEG C, preferably
In embodiment, described condensation temperature is 5～8 DEG C.During industrial application, many use water at low temperature are as cooling
Agent.Water and short chain alcohol that condensation obtains separate from gas, condensate liquid receive tank 4 and receive.After condensed
Gas enter after circulating fan 3 again from gas distributor entrance alcohol compensator alcohol compensator 5 within.
Equipped with water suction short chain alcohol in alcohol compensator 5, concentration is more than 95% (mass concentration), and temperature is 0～25 DEG C,
In a preferred embodiment, the temperature of described water suction short chain alcohol is 10～20 DEG C；After gas enters,
Water suction short chain alcohol absorbs the water in gas further, makes gas be dehydrated further, then from reactor 1
Bottom enter in reactor 1 through gas distributor, provide hybrid power for reaction system.Reacting
Cheng Zhong, the alcohol amount in reactor 1 will gradually decrease, and now open alcohol and add tank 6, mend in reactor 1
Add fresh short chain alcohol, ensure in reactor that the concentration of short chain alcohol is 0.5～2% (quality effectively and quickly
Concentration).
The utility model during grease becomes biodiesel with short-chain alcohol ester metaplasia, utilize circulating fan from
Reactor head is bled, and gas enters in circulating fan after circulating air condenser, then from circulating fan
Out entering into the alcohol compensator equipped with low temperature water suction short chain alcohol, last gas returns the bottom of reactor,
It is dispersed in reactor after a gas distributor.The reactant liquor that gas is inside reactor provides
The power of mixing, constantly takes reaction system out of alcohol gas and aqueous vapor simultaneously, and the most condensed device is dehydrated, and makes
Gas water content reduces half, is substantially reduced the usage amount of low temperature short chain alcohol, reduces what production process was used
Time；Being dried after low temperature short chain alcohol absorbs water, the water content in gas reduces further, then returns the most again
Return reaction system, reduce the water content of reaction system.Meanwhile, in order to ensure the concentration of short chain alcohol in reactor,
The utility model adds tank by alcohol and directly adds fresh liquid short chain alcohol in reactor, it is to avoid put down by alcohol
Weighing apparatus tank supplements the problems such as the short chain alcohol water content that short chain alcohol brought is high, short chain alcohol additional amount is not enough.
Claims (7)
1. the system of a process for preparing biodiesel by enzyme, it is characterised in that described system includes:
Reactor, carries out esterification for reactant grease and short chain alcohol；
Circulating air condenser, its inlet end is connected with the top of reactor, and outlet side is connected with circulating fan；
Circulating fan, its inlet end is connected with the outlet side of circulating air condenser, its outlet side and alcohol compensator
Connect；
Alcohol compensator, its inlet end is connected with the outlet side of circulating fan, and outlet side connects with the bottom of reactor
Connect；And,
Tank added by alcohol, and its material outlet is connected with reactor, for adding short-chain alcohol in reactor.
System the most according to claim 1, it is characterised in that described system also includes that condensate liquid connects
Closed cans, for receiving the condensed fluid of circulating air condenser.
System the most according to claim 2, it is characterised in that described alcohol compensator is interior, reactor
Bottom include gas distributor respectively.
System the most according to claim 3, it is characterised in that described gas distributor is taper type,
With sieve plate arrangement mode air inlet.
System the most according to claim 2, it is characterised in that described alcohol compensator includes condensed system
System, in maintaining alcohol compensator, the temperature of short chain alcohol is 0～25 DEG C.
6. according to the system described in any one of Claims 1 to 5, it is characterised in that described reactor is gas
Lift-type reactor.
System the most according to claim 6, it is characterised in that described reactor is one or more levels
Reactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620075443.1U CN205528669U (en) | 2016-01-26 | 2016-01-26 | System for enzyme process preparation biodiesel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620075443.1U CN205528669U (en) | 2016-01-26 | 2016-01-26 | System for enzyme process preparation biodiesel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205528669U true CN205528669U (en) | 2016-08-31 |
Family
ID=56769782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620075443.1U Active CN205528669U (en) | 2016-01-26 | 2016-01-26 | System for enzyme process preparation biodiesel |
Country Status (1)
| Country | Link |
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| CN (1) | CN205528669U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106367210A (en) * | 2016-09-19 | 2017-02-01 | 中国林业科学研究院林产化学工业研究所 | Gas-liquid two-phase ester exchange reaction equipment and method for preparing biodiesel |
-
2016
- 2016-01-26 CN CN201620075443.1U patent/CN205528669U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106367210A (en) * | 2016-09-19 | 2017-02-01 | 中国林业科学研究院林产化学工业研究所 | Gas-liquid two-phase ester exchange reaction equipment and method for preparing biodiesel |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |