CN107099322A - A kind of waste grease prepares the method for bio-fuel and the preparation method of fuel combination - Google Patents
A kind of waste grease prepares the method for bio-fuel and the preparation method of fuel combination Download PDFInfo
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- CN107099322A CN107099322A CN201710328704.5A CN201710328704A CN107099322A CN 107099322 A CN107099322 A CN 107099322A CN 201710328704 A CN201710328704 A CN 201710328704A CN 107099322 A CN107099322 A CN 107099322A
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G3/00—Production of liquid hydrocarbon mixtures from oxygen-containing organic materials, e.g. fatty oils, fatty acids
- C10G3/40—Thermal non-catalytic treatment
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G9/00—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
- C10G9/14—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils in pipes or coils with or without auxiliary means, e.g. digesters, soaking drums, expansion means
- C10G9/18—Apparatus
- C10G9/20—Tube furnaces
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/10—Feedstock materials
- C10G2300/1003—Waste materials
- C10G2300/1007—Used oils
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
- C10L2290/02—Combustion or pyrolysis
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
- C10L2290/14—Injection, e.g. in a reactor or a fuel stream during fuel production
- C10L2290/141—Injection, e.g. in a reactor or a fuel stream during fuel production of additive or catalyst
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
- C10L2290/24—Mixing, stirring of fuel components
-
- 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
- Y02P30/00—Technologies relating to oil refining and petrochemical industry
- Y02P30/20—Technologies relating to oil refining and petrochemical industry using bio-feedstock
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- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Liquid Carbonaceous Fuels (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The present invention relates to the preparing technical field of biomass fuel there is provided a kind of method that waste grease prepares bio-fuel, comprise the following steps：By APEO, tween, Qula be logical and at least one of neopelex is mixed to prepare micro-emulsifier with oleate；Waste grease is well mixed with micro-emulsifier, the first mixed liquor is obtained；Strong base solution and the first mixed solution are carried out being mixed and stirred for obtaining the second mixed liquor；Assistant for emulsifying agent is added in the second mixed liquor and stirs to obtain microemulsified waste grease, microemulsified waste grease is cracked into obtain bio-fuel.This method prepares that bio-fuel technique is simple, cost is low and obtained bio-fuel performance stable caloric value is high.The present invention should provide a kind of preparation method of fuel combination, and it includes the method that the waste grease of the invention provided prepares bio-fuel, and its technique is simple, and cost is low, environmental protection.
Description
Technical field
The present invention relates to the preparing technical field of biomass fuel, prepare and give birth in particular to a kind of waste grease
The method of thing fuel and the preparation method of fuel combination.
Background technology
Bio-oil refers to that using renewable resources such as plant, animal fats as raw material production can be used for petroleum diesel alternative
The clean fuel of product.Biodiesel is greatly developed to sustainable economic development, energy substitution is promoted, mitigates environmental pressure, control
Urban atmospheric pollution has important strategic importance.
Current waste grease is mainly conversion production biodiesel, and the method for production biodiesel is mainly chemical method, should
Method is using acid, base catalysis (mainly KOH, Na0H and sulfuric acid) production bio-oil.But there are some technical barriers, for example, make
It is catalyst with liquid acids such as sulfuric acid, there is equipment corrosion seriously, catalyst separation is difficult, it is impossible to the shortcomings of reusing.Adopt
When preparing bio-oil with strong base catalyst high-acid value grease (or waste grease), first have to carry out depickling processing, by abandoned oil
Resin acid value is dropped in certain limit, and otherwise base catalyst can generate soap, causes subsequent reactions not carry out.Current waste grease is another
One important transform mode makes a living generation boat coal or catalytic pyrolysis into fuel oil, and biology boat coal is due to product quality requirement
Height, price inversion is serious, and invests huge, causes many enterprises to be hung back.Simple transform mode is waste grease at present
Catalytic pyrolysis obtains biomass fuel.No matter which kind of transform mode, the cost of raw material directly determines the market competition of product
Power, the recycled wood materials that the industry such as catering trade is produced are seen everywhere, and wide material sources are cheap, discarded edible using these
Oily next life produces material oil, can substantially reduce the production cost of bio-oil.How effective deoxidation, reduction heavy constituent contain
Amount, it is current study hotspot to realize that waste grease is rapidly converted into fuel oil.
The content of the invention
The invention provides a kind of method that waste grease prepares bio-fuel, it is intended to improves existing waste grease and prepares
Bio-fuel is more difficult, and the high problem of cost.
Present invention also offers a kind of preparation method of fuel combination, its cost is low, the fuel environmental protection produced, surely
It is qualitative good.
What the present invention was realized in：
A kind of method that waste grease prepares bio-fuel, comprises the following steps：
By APEO, tween, Qula be logical and at least one of neopelex presses quality with oleate
Compare 1-3:14-17 carries out being mixed to prepare micro-emulsifier；
13-15 in mass ratio:1 is well mixed waste grease with micro-emulsifier, obtains the first mixed liquor；
The strong base solution for being 6-7.5mol/L by molar concentration and the first mixed solution are 1 in mass ratio：12-14 is mixed
Merge stirring, obtain the second mixed liquor；
Assistant for emulsifying agent is added in the second mixed liquor and stirs to obtain microemulsified waste grease, assistant for emulsifying agent and the second mixed liquor
Mass ratio is 1:30-35；
Microemulsified waste grease is cracked into 8- under conditions of 450-600 degrees Celsius, nitrogen flow are 70-90mL/min
12min obtains bio-fuel.
A kind of preparation method of fuel combination, including the method that above-mentioned waste grease prepares bio-fuel.
The beneficial effects of the invention are as follows：The waste grease that the present invention is obtained by above-mentioned design prepares the side of bio-fuel
Method, whole course of reaction is simultaneously effective stripped of the aliphatic acid in pyrolysis product in cracking, is significantly fallen while recombinating component
Come, and react, separating step it is few, waste water, waste gas discharge are few, and technique is simple, the bio-oil of preparation few using equipment number of units
Steady quality, yield are high.The preparation method for the fuel combination that the present invention is provided, due to the waste grease system provided including the present invention
The method of standby bio-fuel, therefore the simple cost of its technique is low, product stability is good, environmental protection.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme of embodiment of the present invention, it will use below required in embodiment
Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, therefore be not to be seen as
It is the restriction to scope, for those of ordinary skill in the art, on the premise of not paying creative work, can be with root
Other related accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the flow chart for the method that the waste grease that embodiment of the present invention is provided prepares bio-fuel.
Embodiment
Make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below by the embodiment of the present invention
Technical scheme is clearly and completely described.Unreceipted actual conditions person in embodiment, advises according to normal condition or manufacturer
Condition carry out.Agents useful for same or the unreceipted production firm person of instrument, are the conventional products that can be obtained by commercially available purchase.
Prepared by the method for bio-fuel and the preparation side of fuel combination to a kind of waste grease of the embodiment of the present invention below
Method is specifically described.
A kind of method that waste grease prepares bio-fuel, comprises the following steps：
S1, by APEO, tween, Qula be logical and at least one of neopelex presses matter with oleate
Amount compares 1-3:14-17 carries out being mixed to prepare micro-emulsifier.
Specifically, take appropriate APEO, tween, Qula logical and at least one of neopelex and oil
Acid esters be mixed to prepare in micro-emulsifier, mixed process being stirred to ensure to be well mixed with agitator or stirring rod,
APEO, tween, Qula be logical and the mass ratio of at least one of neopelex and oleate is 1-3:14-
17, when being used to prepare bio-fuel using micro-emulsifier made from the raw material of the component ratio so that waste grease conversion ratio is more
It is high.
S2, in mass ratio 13-15:1 is well mixed waste grease with micro-emulsifier, obtains the first mixed liquor.
Specifically, the waste grease of recovery is dehydrated first.Specifically, waste grease is heated into 100-120 to take the photograph
Family name's degree, and under conditions of vacuumizing, anhydrous calcium chloride is added into the waste grease of heating to be used to absorb in waste grease
Moisture content, anhydrous calcium chloride is 20-26 hours to the dehydration treatment time of waste grease, is made after dewater treatment by way of filtering
Waste grease is obtained to separate with the calcium chloride after water suction.It is micro- by that can be more easy to rear waste grease after waste grease progress dewater treatment
Emulsification, and then ensure to be more easy to that bio-fuel is made.Further, due in waste grease moisture content it is not high, ensure i.e. it is not unrestrained
Expense anhydrous calcium chloride can fully absorb moisture again under conditions of, the anhydrous calcium chloride and the mass ratio of waste grease used is 1-
3:18-19.It should be noted that the anhydrous calcium chloride after water suction can also dry Posterior circle and use.
After waste grease dewater treatment, 13-15 in mass ratio:1 mixes waste grease with micro-emulsifier, is adopted after mixing
It is stirred with electric mixer, stirs 50-70min to ensure that waste grease is well mixed with micro-emulsifier to obtain the first mixing
Liquid.
S3, the strong base solution for being 6-7.5mol/L by molar concentration and the first mixed solution are 1 in mass ratio：12-14 enters
Row is mixed and stirred for, and obtains the second mixed liquor.
Specifically, strong base solution of the molar concentration for 6-7.5mol/L is prepared first with standby, the highly basic prepared is molten
Liquid is mixed and is stirred with the first mixed solution, and the mass ratio of strong base solution and the first mixed liquor is 1：12-14, to ensure to mix
Conjunction uniformly mixed the time for 2-4 hours, obtained the second mixed liquor.Research finds that molar concentration is molten for 6-7.5mol/L highly basic
The mass ratio of liquid and the first mixed solution is 1：Waste grease is converted into the conversion ratio highest of bio-fuel during 12-14.Enter one
Step ground, highly basic includes at least one of sodium hydroxide or potassium hydroxide.Sodium hydroxide or potassium hydroxide are most common and price
More cheap highly basic, using them primarily to reduction prepares cost.
S4, will assistant for emulsifying agent add the second mixed liquor in stir to obtain microemulsified waste grease, assistant for emulsifying agent is mixed with second
The mass ratio of liquid is 1:30-35.
Specifically, assistant for emulsifying agent is added into the second mixed liquor and is stirred, stirs 25-35min to ensure the second mixed liquor
Be well mixed with assistant for emulsifying agent clear microemulsified waste grease, the quality of the assistant for emulsifying agent of addition and the second mixed liquor
Mass ratio be 1:30-35.Further, assistant for emulsifying agent includes at least one of methanol, ethanol, propyl alcohol and butanol.This is several
It is most common assistant for emulsifying agent to plant alcohol, and purchase cost is low.
S5, by microemulsified waste grease 450-600 degrees Celsius, nitrogen flow be 70-90mL/min under conditions of crack
8-12min obtains bio-fuel.
Specifically, by microemulsified waste grease under conditions of 450-600 degrees Celsius, nitrogen flow are 70-90mL/min,
Equably it is pumped into the tube cracking furnace that lytic effect is good, stability is good and is cracked, pyrolysis time is 8-12min, causes
The cracking of microemulsified waste grease is complete.Further, when nitrogen flow is 80mL/min, lysis efficiency highest.
Bio-fuel is prepared present invention also offers a kind of preparation method of fuel combination, including above-mentioned waste grease
Method.
A kind of waste grease provided below in conjunction with specific embodiment the present invention prepares method and the mixing of bio-fuel
The preparation method of fuel is specifically described.
Embodiment 1
Take APEO 0.8g, Monoethanolamine Oleate ester 11.2g, waste grease 168g, potassium hydroxide 5g, deionized water
14g, n-butanol 6g, anhydrous calcium chloride 8.4g weigh standby.
By 5g potassium hydroxide be dissolved in 14g deionized waters molar concentration is potassium hydroxide that 6.38mol/L mass is 19g
Solution for standby.
Take APEO 0.8g and Monoethanolamine Oleate ester 11.2g that obtained micro-emulsifier is mixed evenly.
168g waste greases are heated to 110 degrees Celsius, and under conditions of vacuumizing, added into the waste grease of heating
Entering anhydrous calcium chloride is used to absorb the moisture content in waste grease, and anhydrous calcium chloride is small for 24 to the dehydration treatment time of waste grease
When, calcium chloride is then filtered to isolate, anhydrous calcium chloride addition is 8.4g.
12g micro-emulsifiers are mixed with the waste grease after dehydration, are stirred after mixing using electric mixer,
Mixing time is 60min, obtains the first mixed liquor.
6.38mol/L potassium hydroxide and the first mixed liquor are mixed and stirred for 3h, the second mixed liquor is obtained, by 6g n-butanols
It is added in the second mixed liquor, stirring 30min obtains microemulsified waste gas grease.
Microemulsified waste grease is equably pumped into tube cracking furnace, furnace temperature is set as 500 degrees Celsius, nitrogen flow is
80mL/min, pyrolysis time is 10min, and final gained oily liquids is bio-fuel.Yield is charged into table 1.
Embodiment 2
Tween 2.1g, olein 11.9g, waste grease 182g, potassium hydroxide 4.11g, deionized water 12.22g, first
Alcohol 7.08g, anhydrous calcium chloride 18.2g weigh standby.
By 4.11 potassium hydroxide be dissolved in 12.22g deionized waters molar concentration is hydrogen that 6mol/L mass is 16.33g
Potassium oxide solution is standby.
Take tween 2.1g and olein 11.9g that obtained 14g micro-emulsifiers are mixed evenly.
182g waste greases are heated to 100 degrees Celsius, and under conditions of vacuumizing, added into the waste grease of heating
Entering anhydrous calcium chloride is used to absorb the moisture content in waste grease, and anhydrous calcium chloride is small for 20 to the dehydration treatment time of waste grease
When, calcium chloride is then filtered to isolate, anhydrous calcium chloride addition is 18.2g.
14g micro-emulsifiers are mixed with the waste grease after dehydration, are stirred after mixing using electric mixer,
Mixing time is 50min, obtains the first mixed liquor.
6mol/L potassium hydroxide and the first mixed liquor are mixed and stirred for 2h, the second mixed liquor is obtained, 7.08g methanol is added
Enter into the second mixed liquor, stirring 25min obtains microemulsified waste grease.
Microemulsified waste grease is equably pumped into tube cracking furnace, furnace temperature is set as 450 degrees Celsius, nitrogen flow is
70mL/min, pyrolysis time is 8min, and final gained oily liquids is bio-fuel.Yield is charged into table 1.
Embodiment 3
Qula leads to 0.75g, Polyethylene Glycol Oleate 10.5g, waste grease 180g, sodium hydroxide 3.15g, deionized water
10.48g, ethanol 5.84g, anhydrous calcium chloride 11.5g weigh standby.
By 3.15g sodium hydroxides be dissolved in 10.48g deionized waters molar concentration is that 7.5mol/L mass is 13.63g's
Sodium hydroxide solution is standby.
Take Qula to lead to 0.75g and Polyethylene Glycol Oleate 10.5g and obtained 10.8g micro-emulsifiers are mixed evenly.
180g waste greases are heated to 120 degrees Celsius, and under conditions of vacuumizing, added into the waste grease of heating
Entering anhydrous calcium chloride is used to absorb the moisture content in waste grease, and anhydrous calcium chloride is small for 26 to the dehydration treatment time of waste grease
When, calcium chloride is then filtered to isolate, anhydrous calcium chloride addition is 11.5g.
10.8g micro-emulsifiers are mixed with the waste grease after dehydration, stirred after mixing using electric mixer
Mix, mixing time is 70min, obtain the first mixed liquor.
7.5mol/L sodium hydroxide and the first mixed liquor are mixed and stirred for 4h, the second mixed liquor is obtained, by 5.84g ethanol
It is added in the second mixed liquor, stirring 35min obtains microemulsified waste grease.
Microemulsified waste grease is equably pumped into tube cracking furnace, furnace temperature is set as 600 degrees Celsius, nitrogen flow is
90mL/min, pyrolysis time is 12min, and final gained oily liquids is bio-fuel.Yield is charged into table 1.
Embodiment 4
Qula is logical, mixed liquor 1.43g, the Monoethanolamine Oleate ester of APEO and neopelex
11.43g, waste grease 180g, sodium hydroxide 3.17g, deionized water 11.67g, propyl alcohol 6.29g, anhydrous calcium chloride 13.55g claim
Amount is standby.
By 3.17g sodium hydroxides be dissolved in 11.67g deionized waters molar concentration is that 6.8mol/L mass is 14.84g's
Sodium hydroxide solution is standby.
Take the mixed liquor 1.43g and Monoethanolamine Oleate ester of logical Qula, APEO and neopelex
Obtained 11.86g micro-emulsifiers are mixed evenly in 11.43g.
180g waste greases are heated to 115 degrees Celsius, and under conditions of vacuumizing, added into the waste grease of heating
Entering anhydrous calcium chloride is used to absorb the moisture content in waste grease, and anhydrous calcium chloride is small for 24 to the dehydration treatment time of waste grease
When, calcium chloride is then filtered to isolate, anhydrous calcium chloride addition is 13.55g.
11.86g micro-emulsifiers are mixed with the waste grease after dehydration, stirred after mixing using electric mixer
Mix, mixing time is 65min, obtain the first mixed liquor.
6.8mol/L sodium hydroxide and the first mixed liquor are mixed and stirred for 3.5h, the second mixed liquor is obtained, by 6.29g third
Alcohol is added in the second mixed liquor, and stirring 35min obtains microemulsified waste grease.
Microemulsified waste grease is equably pumped into tube cracking furnace, furnace temperature is set as 550 degrees Celsius, nitrogen flow is
85mL/min, pyrolysis time is 10min, and final gained oily liquids is bio-fuel.Yield is charged into table 1.
Embodiment 5
Qula is logical, mixed liquor 1.43g, the Monoethanolamine Oleate ester of APEO and neopelex
11.43g, waste grease 180g, sodium hydroxide 3.17g, deionized water 11.67g, propyl alcohol 6.29g weigh standby.
By 3.17g sodium hydroxides be dissolved in 11.67g deionized waters molar concentration is that 6.8mol/L mass is 14.84g's
Sodium hydroxide solution is standby.
Take the mixed liquor 1.43g and Monoethanolamine Oleate ester of logical Qula, APEO and neopelex
Obtained 11.86g micro-emulsifiers are mixed evenly in 11.43g.
11.86g micro-emulsifiers are mixed with waste grease, are stirred after mixing using electric mixer, are stirred
Time is 65min, obtains the first mixed liquor.
6.8mol/L sodium hydroxide and the first mixed liquor are mixed and stirred for 3.5h, the second mixed liquor is obtained, by 6.29g third
Alcohol is added in the second mixed liquor, and stirring 35min obtains microemulsified waste grease.
Microemulsified waste grease is equably pumped into tube cracking furnace, furnace temperature is set as 550 degrees Celsius, nitrogen flow is
85mL/min, pyrolysis time is 10min, and final gained oily liquids is bio-fuel.Yield is charged into table 1.
It is pointed out that micro-emulsifier can also be APEO, tween, song in other embodiments of the invention
Other mixtures combined of at least one of logical and neopelex with oleate are drawn, does not do arrange one by one herein
Lift.
Each embodiment of table 1 prepares the yield of bio-fuel
| Embodiment | 1 | 2 | 3 | 4 | 5 |
| Yield | 96.1 | 97.0 | 95.9 | 96.7 | 95.1 |
The yield of bio-fuel is the mass ratio of the bio-fuel and the waste gas grease for reacting that prepare.In analysis
Table understands that embodiment 1-5 yield illustrates the method for the waste gas oil and fat preparation bio-fuel that the present invention is provided more than 95%
Yield is high；The operating condition of embodiment 4 and embodiment 5 is essentially identical, unique the difference is that embodiment 4 is in waste grease and micro emulsion
Agent is dehydrated before preparing to waste grease, and embodiment 5 is not dehydrated then, and the yield of embodiment 4 is compared with embodiment 5
Yield high explanation, dehydration has been carried out to waste grease before prepared by waste grease and micro-emulsifier and has been conducive to improving useless biology
The yield of fuel.
The bio-fuel that embodiment 1-5 is generated carries out gas chromatography-mass spectrography detection, finds embodiment 1-5 generations
Bio-fuel mainly contain the organic compounds such as benzene derivative, aromatic compound and acid esters alkanes polycyclic aromatic hydrocarbons (PAH),
Contain part aldehydes and ketone compounds simultaneously.Thus its calorific value is higher than bio-oil prepared by other methods, and performance is stable.
In summary, the waste grease of high acid value is if Direct Pyrolysis, the acid number in product it is too high, it is necessary to carry out after
Processing, so adds technique, improves cost, and the bio-oil performance prepared is unstable, is urged if directly strengthening alkali
Change, the heavy constituent content formed in cracking fat products can significantly rise.And the advantage of the invention is that whole course of reaction exists
Cracking is effectively stripped of the aliphatic acid in pyrolysis product simultaneously, is significantly lowered while recombinating component, and react, separate step
Rapid few, waste water, waste gas discharge are few, and technique is simple, few using equipment number of units, and bio-oil steady quality, the yield of preparation are high.This
The preparation method of the fuel combination provided is invented, due to preparing the side of bio-fuel including waste grease provided by the present invention
Method so that it has the method identical advantage that bio-fuel is prepared with waste grease.
The preferred embodiment of the present invention is the foregoing is only, is not intended to limit the invention, for this area
For technical staff, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made is any
Modification, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (10)
1. a kind of method that waste grease prepares bio-fuel, it is characterised in that comprise the following steps：
By APEO, tween, Qula be logical and at least one of neopelex and oleate 1- in mass ratio
3:14-17 carries out being mixed to prepare micro-emulsifier；
13-15 in mass ratio:1 is well mixed the waste grease with the micro-emulsifier, obtains the first mixed liquor；
The strong base solution and first mixed solution for being 6-7.5mol/L by molar concentration are 1 in mass ratio：12-14 is mixed
Merge stirring, obtain the second mixed liquor；
Assistant for emulsifying agent is added microemulsified waste grease is stirred to obtain in second mixed liquor, the assistant for emulsifying agent and described second
The mass ratio of mixed liquor is 1:30-35；
The microemulsified waste grease is cracked into 8- under conditions of 450-600 degrees Celsius, nitrogen flow are 70-90mL/min
12min obtains bio-fuel.
2. the method that waste grease according to claim 1 prepares bio-fuel, it is characterised in that by the abandoned oil
Fat also includes being dehydrated the waste grease before being mixed with the micro-emulsifier.
3. the method that waste grease according to claim 2 prepares bio-fuel, it is characterised in that to the waste grease
It is that the waste grease is heated into 100-120 degrees Celsius to carry out dehydration, in the case where vacuumizing, de- using anhydrous calcium chloride
Water process is separated by filtration after 20-26 hours.
4. the method that waste grease according to claim 3 prepares bio-fuel, it is characterised in that the anhydrous calcium chloride
Mass ratio with the waste grease is 1-3:18-19.
5. the method that waste grease according to claim 1 prepares bio-fuel, it is characterised in that by the waste grease
After being mixed with the micro-emulsifier, 50-70min is stirred.
6. the method that waste grease according to claim 1 prepares bio-fuel, it is characterised in that the assistant for emulsifying agent bag
Include at least one of methanol, ethanol, propyl alcohol and butanol.
7. the method that waste grease according to claim 1 prepares bio-fuel, it is characterised in that the highly basic includes hydrogen
At least one of sodium oxide molybdena or potassium hydroxide.
8. the method that waste grease according to claim 1 prepares bio-fuel, it is characterised in that use tube cracking furnace
The microemulsified waste grease is cracked.
9. the method that waste grease according to claim 1 prepares bio-fuel, it is characterised in that by the strong base solution
It is mixed and stirred for first mixed solution, mixing time is 2-4 hours, obtains second mixed liquor.
10. a kind of preparation method of fuel combination, it is characterised in that including the abandoned oil as described in claim any one of 1-9
The method that fat prepares bio-fuel.
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| JP2004035873A (en) * | 2002-07-04 | 2004-02-05 | Field Technology Kenkyushitsu:Kk | Method for manufacturing fatty acid ester and glycerin with low additional energy and low environmental load |
| CN1775913A (en) * | 2005-12-20 | 2006-05-24 | 北京化工大学 | New process for preparing biodiesel from high acid value swill oil |
| CN102296000A (en) * | 2011-07-25 | 2011-12-28 | 河北工业大学 | Method for fast preparation of bio-fuel at normal temperature and pressure by homogeneous base catalysis |
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2017
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|---|---|---|---|---|
| JP2004035873A (en) * | 2002-07-04 | 2004-02-05 | Field Technology Kenkyushitsu:Kk | Method for manufacturing fatty acid ester and glycerin with low additional energy and low environmental load |
| CN1775913A (en) * | 2005-12-20 | 2006-05-24 | 北京化工大学 | New process for preparing biodiesel from high acid value swill oil |
| CN102296000A (en) * | 2011-07-25 | 2011-12-28 | 河北工业大学 | Method for fast preparation of bio-fuel at normal temperature and pressure by homogeneous base catalysis |
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