CN101381610B - Method for transforming plant asphalt to good quality boiler fuel - Google Patents
Method for transforming plant asphalt to good quality boiler fuel Download PDFInfo
- Publication number
- CN101381610B CN101381610B CN2007100499537A CN200710049953A CN101381610B CN 101381610 B CN101381610 B CN 101381610B CN 2007100499537 A CN2007100499537 A CN 2007100499537A CN 200710049953 A CN200710049953 A CN 200710049953A CN 101381610 B CN101381610 B CN 101381610B
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- China
- Prior art keywords
- plant asphalt
- gained
- washing
- acid
- pitch
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- C10L5/00—Solid fuels
- C10L5/40—Solid fuels essentially based on materials of non-mineral origin
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10C—WORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID
- C10C3/00—Working-up pitch, asphalt, bitumen
- C10C3/02—Working-up pitch, asphalt, bitumen by chemical means reaction
- C10C3/023—Working-up pitch, asphalt, bitumen by chemical means reaction with inorganic compounds
-
- 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
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Working-Up Tar And Pitch (AREA)
Abstract
The invention relates to a method for changing plant asphalt into an excellent boiler fuel and belongs to the technical field of the processing of natural asphalt. The method comprises the following steps: firstly, plant asphalt is subjected to acid addition and soap removal at a temperature of between 50 and 100 DEG C, water washing and impurity and salt removal; sequentially, the mixture is kept stand, layered and water phase is removed, the mixture is subjected to alkali neutralization till the PH value is equal to between 7 and 8 and is washed again, kept stand, layered, and the water phase is separated; and finally, an obtained product is dried to obtain a product. The modified plant asphalt has the advantages of low viscosity, low ash content, low sulphur content, low flash points, easy coking in combustion and the like, not only can ensure the thermal efficiency of the boiler, but also prolong the service life of the boiler and reduce pollution.
Description
The present invention relates to a kind of plant asphalt become the method for high-quality boiler oil, belong to the processing technique field of rock asphalt.
In biofuel and lipid acid production, can produce a large amount of by product---plant asphalts, this pitch is mainly used in produces casting binder, RX, concrete prefabricated separant, black printing printing ink, bituminous composition, surface activity carbon, leather agent and boiler oil or the like.
Yet; Because plant asphalt viscosity is big, ash content is high, flash-point is high, traditional plant asphalt is easy to cause the coking of boiler as the method for boiler oil, boiler thermal output is descended; And the heavy metal under the high temperature in the ash content can produce corrosion to boiler tube, seriously reduces the work-ing life of boiler.The present invention carries out modification to plant asphalt, through after the special process method modification, can be used as the boiler oil of excellent property.
(3) technology contents:
1, goal of the invention the object of the present invention is to provide a kind of method of modifying of plant asphalt, and the plant asphalt of this modification is used for boiler oil.
2, technical scheme the present invention is a kind of method that plant asphalt is converted into the high-quality boiler oil.Its method is that plant asphalt is added s.t. 15～60 minutes under 50～100 ℃.Then gained pitch is washed, removed impurity and salt.Standing demix separates and removes water afterwards.Be neutralized to pH=7～8 with alkali, once more washing.Carry out standing demix, water phase separated.Products therefrom is carried out drying, in products therefrom, add certain quantity of additive at last.
Wherein s.t. is one or more the mixture in hydrochloric acid, nitric acid and the phosphoric acid with acid; The add-on of acid is 0.1～5.0% of a raw materials quality in the described acid treatment process.
Described improved plant pitch is formed (mass content) by the raw material of following composition: plant asphalt 80～100%, additive 20～0%.
3, beneficial effect the present invention implements technique scheme, has at first solved the problem of the utilization of a large amount of plant asphalt by products that produce in the production of biofuel and lipid acid.Experiment shows and traditional directly plant asphalt is easy to cause the coking of boiler as the method for boiler oil, boiler thermal output is descended, and the heavy metal in the ash content can produce corrosion to boiler tube under the high temperature, seriously reduces the work-ing life of boiler.
At first the plant asphalt that produces in the production of biodiesel is carried out modification in the present invention, after adding certain quantity of additive after acidified processing and the desalination as boiler oil.Have LV, low ash content, low sulfur content, low-flash, burning through the plant asphalt of modification and be difficult for advantages such as coking, can guarantee the thermo-efficiency of boiler, work-ing life that again can prolonged boiler, reduce to pollute.Can improve the benefit of biofuel and lipid acid manufacturing enterprise by this method greatly.
The present invention compared with prior art, the substantive distinguishing features and the marked improvement that have also are:
The modifying process of present method carries out at normal temperatures and pressures, and technology is simple, and is easy to operate, only needs operations such as heating, stirring, washing and drying, and whole process is easy to control, and modification is with low cost, and easy for industrialized is used.
The employed properties-correcting agent of present method is industry and goes up some bronsted lowry acids and bases bronsted lowries commonly used, need not expensive fine chemical product, not only obtain easily, and low price.
The waste liquid that present method is produced in modifying process is the acidic aqueous solution that has small amount of acid, can be recycled after treatment, environment is not polluted.
Present method can obviously reduce the flash-point and the viscosity of plant asphalt through in plant asphalt, adding a certain amount of special additive (foreshot of gained in the production biofuel process), plays combustion-supporting and effect viscosity reduction.
Having LV, low ash content, low sulfur content, low-flash, burning through the plant asphalt of modification and be difficult for advantages such as coking, can guarantee the thermo-efficiency of boiler, work-ing life that again can prolonged boiler, reduce and pollute, is a kind of novel environment friendly fuel.
(4) description of drawings: Figure of description is a process flow sheet of the present invention.
(5) specific embodiment:
Below in conjunction with specific embodiment the present invention is described further.Embodiment can make the researchist understand the present invention better, but does not limit the present invention in any form.
| The parameter numbering | The s.t. temperature (degree centigrade) | The s.t. time (minute) | With acid amount (%) | Additive capacity (%) | Use sour kind |
| 1 | ?80 | ?25 | 0.74 | ?5 | Nitric acid |
| 2 | ?70 | ?30 | 5.0 | ?8 | Hydrochloric acid |
| 3 | ?90 | ?40 | 0.1 | ?20 | Phosphoric acid |
| 4 | ?100 | ?15 | 0.83 | ?0 | Phosphoric acid+nitric acid |
| 5 | ?50 | ?60 | 1.41 | ?4 | Hydrochloric acid+phosphoric acid |
| 6 | ?75 | ?45 | 1.10 | ?6 | Hydrochloric acid+nitric acid |
The practical implementation of the foregoing description is operating as:
Embodiment 1:
With the plant asphalt that once drops into 1000kg is example.The nitric acid 7.4kg of adding 98%, control reaction temperature is 80 ℃ and reacted 25 minutes down.The water that adds 1000kg then, 70 ℃ are stirred washing 20 minutes down.Standing demix is removed water, gets upper strata pitch phase, is neutralized to pH=7～8 with alkali.The water that adds 1000kg, 70 ℃ are stirred washing 20 minutes down.Standing demix is removed water.Gained upper strata pitch is carried out drying under reduced pressure under 80 ℃, be upgraded to normal pressure after, the foreshot that adds gained in the production biofuel process of 50kg in the pitch of gained stirs as additive, promptly obtains the plant asphalt of modification.
Embodiment 2:
With the plant asphalt that once drops into 1000kg is example.The hydrochloric acid 50kg of adding 36%, control reaction temperature is 70 ℃ and reacted 30 minutes down.The water that adds 1000kg then, 65 ℃ are stirred washing 15 minutes down.Standing demix is removed water.Get upper strata pitch phase, be neutralized to pH=7～8 with alkali, add the water of 1000kg, 65 ℃ are stirred washing 15 minutes down.Standing demix is removed water.Products therefrom is carried out drying under reduced pressure under 80 ℃.After being upgraded to normal pressure, the foreshot that adds gained in the production biofuel process of 80kg in the pitch of gained stirs as additive, promptly obtains the plant asphalt of modification.
Embodiment 3:
With the plant asphalt that once drops into 1000kg is example.The phosphatase 11 .0kg of adding 85%, control reaction temperature is 90 ℃ and reacted 40 minutes down.The water that adds 1000kg then, 65 ℃ are stirred washing 15 minutes down.Standing demix is removed water.Get upper strata pitch phase, be neutralized to pH=7～8 with alkali, add the water of 1000kg, 65 ℃ are stirred washing 15 minutes down.Standing demix is removed water.Products therefrom is carried out drying under reduced pressure under 80 ℃.After being upgraded to normal pressure, the foreshot that adds gained in the production biofuel process of 200kg in the pitch of gained stirs as additive, promptly obtains the plant asphalt of modification.
Embodiment 4:
With the plant asphalt that once drops into 1000kg is example.The nitric acid 5.2kg of adding 98% and 85% phosphoric acid 3.1kg, control reaction temperature is 100 ℃ and reacted 15 minutes down.The water that adds 1000kg then, 65 ℃ are stirred washing 15 minutes down.Standing demix is removed water.Get upper strata pitch phase, be neutralized to pH=7～8 with alkali, add the water of 1000kg, 65 ℃ are stirred washing 15 minutes down.Standing demix is removed water.Products therefrom is carried out drying under reduced pressure under 80 ℃.Promptly obtain the plant asphalt of modification.
Embodiment 5:
With the plant asphalt that once drops into 1000kg is example.The hydrochloric acid 10kg of adding 36% and 85% phosphatase 24 .1kg, control reaction temperature is 50 ℃ and reacted 60 minutes down.The water that adds 1000kg then, 65 ℃ are stirred washing 15 minutes down.Standing demix is removed water.Get upper strata pitch phase, be neutralized to pH=7～8 with alkali, add the water of 1000kg, 65 ℃ are stirred washing 15 minutes down.Standing demix is removed water.Products therefrom is carried out drying under reduced pressure under 80 ℃.After being upgraded to normal pressure, the foreshot that adds gained in the production biofuel process of 40kg in the pitch of gained stirs as additive, promptly obtains the plant asphalt of modification.
Embodiment 6:
With the plant asphalt that once drops into 1000kg is example.The hydrochloric acid 5.6kg of adding 36% and 98% phosphoric acid 5.2kg, control reaction temperature is 75 ℃ and reacted 45 minutes down.The water that adds 1000kg then, 65 ℃ are stirred washing 15 minutes down.Standing demix is removed water.Get upper strata pitch phase, be neutralized to pH=7～8 with alkali, add the water of 1000kg, 65 ℃ are stirred washing 15 minutes down.Standing demix is removed water.Products therefrom is carried out drying under reduced pressure under 80 ℃.After being upgraded to normal pressure, the foreshot that adds gained in the production biofuel process of 60kg in the pitch of gained stirs as additive, promptly obtains the plant asphalt of modification.
Claims (4)
1. one kind becomes the method for high-quality boiler oil with plant asphalt, it is characterized in that may further comprise the steps:
(1) acidification adds in plant asphalt that mineral acid comes unstuck, fine fisssure is separated, and it is characterized in that mineral acid and plant asphalt are joined in the reaction kettle, under agitation is warmed up to 50～100 ℃, under constant temperature, reacts 15～60 minutes;
(2) step (1) gained pitch is washed, removed impurity and inorganic salt, water and bituminous volume ratio are when it is characterized in that washing: 0.5: 1～10: 1, washing temperature was 50～100 ℃, and the washing time is 1～30 minute;
(3) step (2) gained material is carried out standing demix, water phase separated;
(4) step (3) gained upper strata pitch is neutralized to pH=7～8 with alkali, to the washing of gained pitch, water and bituminous volume ratio are during washing: 0.5: 1～10: 1, washing temperature was 50～100 ℃, and the washing time is 1～15 minute again;
(5) step (4) gained material is carried out standing demix, water phase separated;
(6) step (5) gained pitch is carried out drying and get product.
2. according to claim 1 plant asphalt is become the method for high-quality boiler oil, it is characterized in that, s.t. is one or more the mixture in hydrochloric acid, nitric acid, the phosphoric acid with acid.
3. according to claim 1 plant asphalt is become the method for high-quality boiler oil, it is characterized in that the add-on of acid is 0.1～5% of a raw materials quality during s.t..
4. according to claim 1,2, one of 3 the method that plant asphalt is become the high-quality boiler oil, it is characterized in that the foreshot that adds gained in the production biofuel process in the pitch after step (6) is handled is as additive.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100499537A CN101381610B (en) | 2007-09-06 | 2007-09-06 | Method for transforming plant asphalt to good quality boiler fuel |
| US12/204,556 US20090078610A1 (en) | 2007-09-06 | 2008-09-04 | Method of turning vegetable asphalt into superior boiler fuel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100499537A CN101381610B (en) | 2007-09-06 | 2007-09-06 | Method for transforming plant asphalt to good quality boiler fuel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101381610A CN101381610A (en) | 2009-03-11 |
| CN101381610B true CN101381610B (en) | 2012-02-29 |
Family
ID=40461668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100499537A Expired - Fee Related CN101381610B (en) | 2007-09-06 | 2007-09-06 | Method for transforming plant asphalt to good quality boiler fuel |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US20090078610A1 (en) |
| CN (1) | CN101381610B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102703103B (en) * | 2012-06-20 | 2014-01-29 | 东华大学 | Method for preparing environment-friendly waterproof plant asphalt by using plant raw materials |
| CN103666769B (en) * | 2013-12-10 | 2015-04-22 | 浙江嘉澳环保科技股份有限公司 | Method for extracting fatty acid methyl ester from vegetable pitch |
| CN104312612B (en) * | 2014-11-04 | 2018-08-07 | 华文蔚 | A method of converting plant oil asphalt to clean fuel |
| CN104498196B (en) * | 2014-11-26 | 2018-02-02 | 辽宁石油化工大学 | A kind of method for reducing high acid value plant asphalt acid number |
| CN110408419B (en) * | 2019-07-31 | 2021-12-03 | 浙江通宜交通科技有限公司 | Preparation method of high-viscosity high-elasticity asphalt |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB670479A (en) * | 1949-12-14 | 1952-04-16 | Fernando Mario Mora | Process and apparatus for cracking vegetable tar |
| CN1763068A (en) * | 2005-09-20 | 2006-04-26 | 南京工业大学 | Method for extracting phytosterol acetate from vegetable oil asphalt |
| CN1807444A (en) * | 2006-02-07 | 2006-07-26 | 南京工业大学 | Method for extracting phytosterol from vegetable oil pitch |
| CN101016466A (en) * | 2006-02-09 | 2007-08-15 | 徐永林 | Method of preparing biological diesel oil from plant bitumen |
| CN101029245A (en) * | 2007-04-13 | 2007-09-05 | 清华大学 | Production of biological diesel oil by integrated hydrogenation |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7252755B2 (en) * | 2003-04-07 | 2007-08-07 | Marathon Ashland Petroleum Co. | Viscosity modification of heavy hydrocarbons |
| US20070113465A1 (en) * | 2005-11-21 | 2007-05-24 | Pech Craig W | Method for manufacture and use of the waste stream from biodiesel production (crude glycerin) as a commercial fuel |
| JP5757603B2 (en) * | 2006-06-30 | 2015-07-29 | ユニヴァーシティー オブ ノースダコタ | Production method of biojet fuel stable at low temperature |
| WO2008100798A1 (en) * | 2007-02-09 | 2008-08-21 | Primafuel, Inc. | Biodiesel production method and apparatus |
| WO2009005767A1 (en) * | 2007-06-29 | 2009-01-08 | Archer-Daniels-Midland Company | Process for desalting glycerol solutions and recovery of chemicals |
| US7534923B2 (en) * | 2007-08-15 | 2009-05-19 | Rohm And Haas Company | Method for purification of glycerol from biodiesel production |
-
2007
- 2007-09-06 CN CN2007100499537A patent/CN101381610B/en not_active Expired - Fee Related
-
2008
- 2008-09-04 US US12/204,556 patent/US20090078610A1/en not_active Abandoned
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB670479A (en) * | 1949-12-14 | 1952-04-16 | Fernando Mario Mora | Process and apparatus for cracking vegetable tar |
| CN1763068A (en) * | 2005-09-20 | 2006-04-26 | 南京工业大学 | Method for extracting phytosterol acetate from vegetable oil asphalt |
| CN1807444A (en) * | 2006-02-07 | 2006-07-26 | 南京工业大学 | Method for extracting phytosterol from vegetable oil pitch |
| CN101016466A (en) * | 2006-02-09 | 2007-08-15 | 徐永林 | Method of preparing biological diesel oil from plant bitumen |
| CN101029245A (en) * | 2007-04-13 | 2007-09-05 | 清华大学 | Production of biological diesel oil by integrated hydrogenation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101381610A (en) | 2009-03-11 |
| US20090078610A1 (en) | 2009-03-26 |
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