CN101173175A - Method for producing biological diesel oil with waste propagation oil and fat - Google Patents
Method for producing biological diesel oil with waste propagation oil and fat Download PDFInfo
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- CN101173175A CN101173175A CNA2006101509599A CN200610150959A CN101173175A CN 101173175 A CN101173175 A CN 101173175A CN A2006101509599 A CNA2006101509599 A CN A2006101509599A CN 200610150959 A CN200610150959 A CN 200610150959A CN 101173175 A CN101173175 A CN 101173175A
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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
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- 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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Abstract
The invention relates to a preparation method of biodiesel, which is a method to utilize waste animal and vegetable oil to prepare biodiesel. The invention solves the problems of unstable product quality, large differences between batches and low yield existing in prior methods that use waste animal and vegetable oil to prepare biodiesel. The preparation of biodiesel by using waste animal and vegetable oil is carried out by following steps: first, the waste animal and vegetable oil is melted and filtered; second, vacuum dehydration is performed; a third, esterification alkali solution is prepared by dissolving NaOH completely in methanol; fourth, the esterification alkali solution and the dehydrated oil are successively arranged in a stirred tank to be stirred, and then transferred into a layered tank for standing; fifth; the upper layer liquid of the layered tank is pumped into a flash dealcoholization device for dealcoholization; sixth, adsorbent is added into the crude product after flash dealcoholization, and after even agitation and filtration, liquid biodiesel is produced. The biodiesel produced by the preparation method of the invention has the advantages of stable quality, small differences between batches, and a high yield of more than 85%.
Description
Technical field
The present invention relates to a kind of preparation method of biofuel.
Background technology
Along with the soaring all the way of oil price, energy scarcity, the exhaustion day by day of petroleum resources and the raising of people's environmental consciousness, the research and development of biofuel is subjected to extensive concern in recent years.European Union takes policies such as raw material (rapeseed oil) plantation subsidy, biofuel difference tax incentives to biofuel, also require various countries to reduce the biofuel tax rate, and will be since 2009, mandatory biofuel to be called in the vehicle fuel, mediation measures minimum 1%.In 2002, United States Senate proposed to comprise the energy tax reduction plan of biofuel, and in October, 2004, the US President signed the tax incentive bill to biofuel, and biological support diesel oil is in the development of the U.S. energetically; Other country as Brazil, Philippines, Korea S, Japan, Canada also all or have formulated applying of relevant policy and measure biological support diesel oil technology.
Biofuel is compared with conventional diesel oil and is had the following advantages:
1, environmental protection.Sulphur content is low in the biofuel, and the discharging of sulfurous gas and sulfide is low, can reduce about 30% (being 70% when catalyzer is arranged); Do not contain aromatic series alkane in the biofuel, so harmful pollutent reduces in a large number in the biofuel waste gas, detection shows that comparing biofuel with ordinary diesel oil can reduce by 90% air toxicity, the cancer rate of reduction by 94%; Biofuel oxygen level height, smoke evacuation is lacked during burning, and the quantity discharged of carbon monoxide is compared with ordinary diesel oil and is reduced (reducing CO (carbon monoxide converter) emission when catalyzer is arranged is 95%) more than 10%; The biological degradability of biofuel is also apparently higher than ordinary diesel oil; Biofuel satisfies European III emission standard, can reduce CO2 emissions, alleviates Global warming speed.
2, good lubricating property.Biofuel can reduce the wear rate of oil injection pump, engine cylinder-body and connecting rod, prolongs service life of equipment.
3, safe.Biofuel flash-point height does not belong to hazardous substance, and is therefore safer in transportation, storage, use.
4, fuel is good.The cetane value height, incendivity is better than diesel oil.
5, has recyclability.The biofuel resource is inexhausted, can supply use endlessly.
But, utilize waste animal and vegetable oil production method of bio-diesel oil to have unstable product quality at present, batch differences is big, the problem that yield is low.
Summary of the invention
The objective of the invention is to utilize waste animal and vegetable oil production method of bio-diesel oil to have unstable product quality at present in order to solve, batch differences is big, the problem that yield is low, and a kind of method of utilizing preparing biological diesel oil from waste animals and plants grease that provides.Utilize preparing biological diesel oil from waste animals and plants grease to carry out according to the following steps: (one) fusing is also filtered waste animal and vegetable oil; (2) vacuum hydro-extraction; (3) NaOH is dissolved fully with methyl alcohol in be mixed with esterification alkali lye, wherein the quality of NaOH is 0.9%～1.2% of dehydration back oil quality, the quality of methyl alcohol is 20%～30% of dehydration back oil quality; (4) esterification alkali lye and dehydration grease are successively added stirring tank, under temperature is 60 ℃～65 ℃, the condition of 100～150r/min, stir 40～60min, change over to then in the layering jar and leave standstill 60 ± 10min; (5) glycerin layer of lower floor in the layering jar is discharged, supernatant liquid pumps into flash distillation dealcoholysis device and carries out dealcoholysis, and temperature is controlled to be 60 ℃～90 ℃ in the flash distillation dealcoholysis device; (6) sorbent material of the thick quality product 0.5%～2.0% of adding in the thick product that obtains after the flash distillation dealcoholysis evenly stirs 10～30min after-filtration, promptly obtains liquid biofuel.The biofuel steady quality that biodiesel oil preparing process of the present invention is produced, batch differences is little, look number≤3.0, oxidation stability≤1.5, and yield is up to more than 85%.
Embodiment
Embodiment one: present embodiment utilizes preparing biological diesel oil from waste animals and plants grease to carry out according to the following steps: (one) fusing is also filtered waste animal and vegetable oil; (2) vacuum hydro-extraction; (3) NaOH is dissolved fully with methyl alcohol in be mixed with esterification alkali lye, wherein the quality of NaOH is 0.9%～1.2% of dehydration back oil quality, the quality of methyl alcohol is 20%～30% of dehydration back oil quality; (4) esterification alkali lye and dehydration grease are successively added stirring tank, under temperature is 60 ℃～65 ℃, the condition of 100～150r/min, stir 40～60min, change over to then in the layering jar and leave standstill 60 ± 10min; (5) glycerin layer of lower floor in the layering jar is discharged, supernatant liquid pumps into flash distillation dealcoholysis device and carries out dealcoholysis, and temperature is controlled to be 60 ℃～90 ℃ in the flash distillation dealcoholysis device; (6) sorbent material of the thick quality product 0.5%～2.0% of adding in the thick product that obtains after the flash distillation dealcoholysis evenly stirs 10～30min after-filtration, promptly obtains liquid biofuel.
The available waste animal and vegetable oil of present embodiment comprises sewer oil, soup oil, butter and useless lard.The glycerin layer of discharging in the present embodiment by centralized collection as by-product sale, but additional income reduces production costs.Present embodiment adopts the adsorption and purification method, compares with the washing method of purification of present employing, has no effluent, pollution-free, saves the advantage of water resources, and the minimizing purifying products time only is 10～30min.Biofuel to prior biological diesel oil and present embodiment preparation compares test, and test-results is as shown in table 1.
Table 1
| Sequence number | Project | Test method | Existing biofuel | The biofuel of present embodiment preparation |
| 1 | Colourity, number | GB/T 6540 | 3.5 | 2.0 |
| 2 | Oxidation stability, total insoluble substance mg/100mL | SH/T 0175 | 2.5 | 1.4 |
| 3 | Sulphur content, % (m/m) | GB/T 380 | 0.2 | 0.03 |
| 5 | 10% steams excess carbon residue, % (m/m) | GB/T 268 | 0.3 | 0.3 |
| 6 | Ash content, % (m/m) | GB/T 508 | 0.01 | 0.004 |
| 7 | Copper corrosion (50 ℃, 3h), level | GB/T 5096 | 1 | 1 |
| 8 | Moisture, % (v/v) | GB/T 260 | Vestige | Vestige |
| 9 | Mechanical impurity | GB/T 511 | Do not have | Do not have |
| 10 | Kinematic viscosity (20 ℃), mm 2/s | GB/T 265 | 3.0～8.0 | 7.66 |
| 11 | Flash-point (remaining silent), ℃ | GB/T 261 | 55 | 140 |
| 12 | Cetane value | GB/T 386 | 45 | 48 |
| 13 | Calorific value, MJ/kg | 35 | 38 |
The every performance of biofuel of comparative test result proof present embodiment preparation all is better than prior biological diesel oil.
Embodiment two: the difference of present embodiment and embodiment one is: keeping the grease temperature in waste animal and vegetable oil fusing and the filtration procedure in the step () is 45 ℃～55 ℃.Other step is identical with embodiment one.
Embodiment three: the difference of present embodiment and embodiment one is: filtering accuracy is not more than 10 μ m in the step ().Other step is identical with embodiment one.
Embodiment four: the difference of present embodiment and embodiment one is: the grease temperature is 35 ℃～100 ℃ in step (two) the vacuum hydro-extraction process, and vacuum tightness is 4000Pa～6000Pa.Other step is identical with embodiment one.
Embodiment five: the difference of present embodiment and embodiment one is: flash distillation dealcoholysis device is a shell and tube flash distillation dealcoholysis device in the step (five), and heat interchanging area is 5～20m
2Other step is identical with embodiment one.
Present embodiment adopts shell and tube flash distillation dealcoholysis device, and dealcoholysis is rapid, the heated time of product is short, has guaranteed that the quality of product, the yield of raising product reach more than 85%, have reduced production energy consumption again, the potential safety hazard of having avoided electrically heated to bring simultaneously.
Embodiment six: the difference of present embodiment and embodiment one is: thick product temperature remains 60 ℃～80 ℃ in the step (six).Other step is identical with embodiment one.
Embodiment seven: the difference of present embodiment and embodiment one is: sorbent material is a Magnesol D60 sorbent material in the step (six).Other step is identical with embodiment one.
Magnesol D60 sorbent material in the present embodiment is available from American Dallas Group of AmericaInc.
Embodiment eight: the difference of present embodiment and embodiment one is: filtering accuracy is not more than 1 μ m in the step (six).Other step is identical with embodiment one.
Embodiment nine: the difference of present embodiment and embodiment one is: keeping the grease temperature in waste animal and vegetable oil fusing and the filtration procedure in the step () is 48 ℃～53 ℃.Other step is identical with embodiment one.
Embodiment ten: the difference of present embodiment and embodiment one is: keeping the grease temperature in waste animal and vegetable oil fusing and the filtration procedure in the step () is 50 ℃.Other step is identical with embodiment one.
Embodiment 11: the difference of present embodiment and embodiment one is: the grease temperature is 40 ℃～95 ℃ in step (two) the vacuum hydro-extraction process, and vacuum tightness is 4100Pa～5900Pa.Other step is identical with embodiment one.
Embodiment 12: the difference of present embodiment and embodiment one is: the grease temperature is 45 ℃～90 ℃ in step (two) the vacuum hydro-extraction process, and vacuum tightness is 4500Pa～5500Pa.Other step is identical with embodiment one.
Embodiment 13: the difference of present embodiment and embodiment one is: the grease temperature is 60 ℃～85 ℃ in step (two) the vacuum hydro-extraction process, and vacuum tightness is 5000Pa.Other step is identical with embodiment one.
Embodiment 14: the difference of present embodiment and embodiment one is: flash distillation dealcoholysis device is a shell and tube flash distillation dealcoholysis device in the step (five), and heat interchanging area is 8～18m
2Other step is identical with embodiment one.
Embodiment 15: the difference of present embodiment and embodiment one is: flash distillation dealcoholysis device is a shell and tube flash distillation dealcoholysis device in the step (five), and heat interchanging area is 10～15m
2Other step is identical with embodiment one.
Embodiment 16: the difference of present embodiment and embodiment one is: thick product temperature remains 65 ℃～75 ℃ in the step (six).Other step is identical with embodiment one.
Embodiment 17: the difference of present embodiment and embodiment one is: thick product temperature remains 70 ℃ in the step (six).Other step is identical with embodiment one.
Claims (8)
1. method of utilizing preparing biological diesel oil from waste animals and plants grease is characterized in that utilizing preparing biological diesel oil from waste animals and plants grease to carry out according to the following steps: waste animal and vegetable oil is also filtered in (one) fusing; (2) vacuum hydro-extraction; (3) NaOH is dissolved fully with methyl alcohol in be mixed with esterification alkali lye, wherein the quality of NaOH is 0.9%～1.2% of dehydration back oil quality, the quality of methyl alcohol is 20%～30% of dehydration back oil quality; (4) esterification alkali lye and dehydration grease are successively added stirring tank, under temperature is 60 ℃～65 ℃, the condition of 100～150r/min, stir 40～60min, change over to then in the layering jar and leave standstill 60 ± 10min; (5) glycerin layer of lower floor in the layering jar is discharged, supernatant liquid pumps into flash distillation dealcoholysis device and carries out dealcoholysis, and temperature is controlled to be 60 ℃～90 ℃ in the flash distillation dealcoholysis device; (6) sorbent material of the thick quality product 0.5%～2.0% of adding in the thick product that obtains after the flash distillation dealcoholysis evenly stirs 10～30min after-filtration, promptly obtains liquid biofuel.
2. a kind of method of utilizing preparing biological diesel oil from waste animals and plants grease according to claim 1 is characterized in that keeping the grease temperature in middle waste animal and vegetable oil fusing of step () and the filtration procedure is 45 ℃～55 ℃.
3. a kind of method of utilizing preparing biological diesel oil from waste animals and plants grease according to claim 1 is characterized in that filtering accuracy is not more than 10 μ m in the step ().
4. a kind of method of utilizing preparing biological diesel oil from waste animals and plants grease according to claim 1 is characterized in that the grease temperature is 35 ℃～100 ℃ in step (two) the vacuum hydro-extraction process, and vacuum tightness is 4000Pa～6000Pa.
5. a kind of method of utilizing preparing biological diesel oil from waste animals and plants grease according to claim 1 is characterized in that flash distillation dealcoholysis device is a shell and tube flash distillation dealcoholysis device in the step (five), and heat interchanging area is 5～20m
2
6. a kind of method of utilizing preparing biological diesel oil from waste animals and plants grease according to claim 1 is characterized in that thick product temperature remains 60 ℃～80 ℃ in the step (six).
7. a kind of method of utilizing preparing biological diesel oil from waste animals and plants grease according to claim 1 is characterized in that sorbent material is a Magnesol D60 sorbent material in the step (six).
8. a kind of method of utilizing preparing biological diesel oil from waste animals and plants grease according to claim 1 is characterized in that filtering accuracy is not more than 1 μ m in the step (six).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101509599A CN101173175A (en) | 2006-10-30 | 2006-10-30 | Method for producing biological diesel oil with waste propagation oil and fat |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101509599A CN101173175A (en) | 2006-10-30 | 2006-10-30 | Method for producing biological diesel oil with waste propagation oil and fat |
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| CN101173175A true CN101173175A (en) | 2008-05-07 |
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| CNA2006101509599A Pending CN101173175A (en) | 2006-10-30 | 2006-10-30 | Method for producing biological diesel oil with waste propagation oil and fat |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102533438A (en) * | 2011-08-16 | 2012-07-04 | 中国海洋石油总公司 | Refining method for biodiesel coarse product |
| CN102559380A (en) * | 2011-09-26 | 2012-07-11 | 中国海洋石油总公司 | Method and system for refining biodiesel crude product |
| CN101475824B (en) * | 2009-01-22 | 2012-09-19 | 王立 | Wash-free, energy-saving and environment friendly technological process and system apparatus for producing clean fuel oil |
| CN103013681A (en) * | 2012-12-28 | 2013-04-03 | 北京石油化工学院 | Method for preparing fatty acid methyl ester by using waste edible oil |
-
2006
- 2006-10-30 CN CNA2006101509599A patent/CN101173175A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101475824B (en) * | 2009-01-22 | 2012-09-19 | 王立 | Wash-free, energy-saving and environment friendly technological process and system apparatus for producing clean fuel oil |
| CN102533438A (en) * | 2011-08-16 | 2012-07-04 | 中国海洋石油总公司 | Refining method for biodiesel coarse product |
| CN102559380A (en) * | 2011-09-26 | 2012-07-11 | 中国海洋石油总公司 | Method and system for refining biodiesel crude product |
| CN103013681A (en) * | 2012-12-28 | 2013-04-03 | 北京石油化工学院 | Method for preparing fatty acid methyl ester by using waste edible oil |
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Open date: 20080507 |