CN1289637C - Process for producing alternative diesel oil with coal as main raw materials - Google Patents
Process for producing alternative diesel oil with coal as main raw materials Download PDFInfo
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- CN1289637C CN1289637C CN 200510045938 CN200510045938A CN1289637C CN 1289637 C CN1289637 C CN 1289637C CN 200510045938 CN200510045938 CN 200510045938 CN 200510045938 A CN200510045938 A CN 200510045938A CN 1289637 C CN1289637 C CN 1289637C
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Abstract
The present invention provides a method which adopts coal as a main raw material to prepare alternative diesel oil, and relates to the field of preparation of energy. Aiming at solving the problems which exist in research and preparation of alternative diesel oil, the present invention provides a novel method which adopts coal as a main raw material to prepare alternative diesel oil. The technical process of the method comprises a crushing step, a pulverizing step, a stirring step, a reacting step, a distilling step, etc. The the ratio of coal to aluminium chloride to solvent to auxiliary agents is equal to (60 to 30)%: 1%: (30 to 60)%: 9%; the optimum reaction temperature is from 420 to 440 DEG C, the optimum reaction pressure is from 5.8 to 6.0MPa, the optimum reaction time is from 1.5 to 2.5 hours, the final distillation temperature is 380 DEG C, the extracting temperature of gas oil is 340 DEG C, and the extracting temperature of the solvent is from 340 to 380 DEG C. The technical performance data of finished products accords with the data of common diesel oil. Because the price is low, the product is deeply welcomed by users.
Description
Technical field
The present invention relates to energy field, is that employing coal is a kind of novel method that main raw material(s) is produced oil fuel specifically.
Background technology
In the world today of energy scarcity, fuel saving oil becomes the task of top priority.So, people's water mixing in diesel oil is arranged, so that fuel saving oil; Also the someone utilizes the mixed replacement of various chemical reagent with oily; The external coal liquefaction method that adopts is produced bavin, gasoline, because of market petroleum price rise also extremely all circles' attention; But this type of miscellaneous novel method all exists apparatus expensive, complex process, product cost height, invests many problems that are difficult to promotion and implementation such as huge.Therefore, the social concern of oil fuel shortage does not obtain fine solution so far.
Summary of the invention
The objective of the invention is at the world today, many difficult problems that development fuel substitute oil exists have been invented a kind of novel method of producing oil fuel; Whole process flow does not adopt method of hydrotreating and hydrogenation unit, and facility investment reduces significantly, and starting material are easily obtained, and processing method is simple, produces with low costly, provides high-quality, inexpensive, the substitute diesel that possesses market competition as energy market.
Adopting coal is the method that main raw material(s) is produced substitute diesel, its technical process by broken, pulverize, stir, react, distill, concoct, filter each operation and form, it is characterized in that:
A) formula for raw stock and content (% by weight) ratio:
Coal: 60～30 aluminum chloride or zinc chloride: 1
Solvent: 30～60 auxiliary agents: 9
A) auxiliary agent is the wherein a kind of of methyl alcohol, hexadecanol or stearyl alcohol;
B) solvent: feeding intake first is carbolineum, and during the reaction continuous service, adopting the distillations of 340～380 ℃ of distillation process temperature is solvent;
C) blending agents is an amyl nitrate;
B) method and each operation technical parameter of production substitute diesel:
A) granularity of coal crushing is 1cm, and grinding particle size is 200 orders, and broken process should remove metal species impurity;
B) temperature of reaction: 410～450 ℃, pressure is 5.5～6.89MPa, and the reaction times is 1～3 hour;
Optimal reaction temperature is 420～440 ℃, and optimum response pressure is 5.8～6.0MPa, and optimum reacting time is 1.5～2.5 hours;
C) distillation temperature: outlet temperature is 380 ℃, and the temperature that cuts of work in-process gas oil is 340 ℃, and it is 340～380 ℃ that the solvent cut thing cuts temperature;
D) the blending agents quantity that adds of blending process is determined the weight of dosing of blending agents by the diesel oil GB; Usually under the state, blending agents should be by 1～0.5 ‰ of blending material.
Positively effect of the present invention is the devices such as crusher, pulverizer, still kettle and retort that adopted, be the conventional oil chemical industry equipment, do not adopt method of hydrotreating and hydrogenation unit, saved that high facility investment, starting material are easy to get, processing method is simple, non-environmental-pollution, with low cost; To the social difficult problem of fuel oil shortage, provide a kind of new solution route.
Description of drawings
Fig. 1 is a process flow sheet of the present invention.
Embodiment
Embodiment 1
Produce qualified substitute diesel provided by the invention.According to formula for raw stock provided by the invention and content (% by weight) ratio, promptly coal 60%, solvent 30%, and aluminum chloride 1%, the ratio of auxiliary agent 9% is prepared desired raw material, coal 600kg, carbolineum 300kg, aluminum chloride 10kg, methyl alcohol 90kg; Then operate by technical process shown in Figure 1, the coal that will get all the ready at broken process makes the granularity of coal reach 1cm through crusher; Make the granularity of coal reach 200 orders when entering pulverizing process coal through pulverizer; Agitating procedure is the coal dust of 200 order granularities, and the solvent of having got ready promptly feeds intake first carbolineum, aluminum chloride and the auxiliary agent methyl alcohol of 300kg are put in the stirred pot by formula rate, stirs; Afterwards, enter reactor and change reaction process over to, temperature of reaction is 410 ℃, and pressure is 5.5MPa, and the time is 3 hours; Then enter distillation process, top temperature is 380 ℃ in the still kettle, and 340 ℃ fraction is waited to concoct for work in-process gas oil, and 340～380 ℃ of fractionated materials can be made solvent, in continuous flow procedure, can be recycled, and remaining residue is a pitch; Gas oil enters blending process and selects for use amyl nitrate to make blending agents, at normal temperatures, when in gas oil, adding amyl nitrate, should detect the technical indicator of gas oil in advance, meet the gas oil that substitutes of ordinary diesel oil GB, should stop to add amyl nitrate, the blending agents add-on is generally 0.5～1 ‰, purify through filtering again, remove impurity, can produce the finished product substitute diesel.
Heating process in the production process can adopt electrically heated or steam-heated cal(l)andria mode, also can be coal gas, fuel oil, or coal-fired, and the operating process of reactor, still kettle can be adopted intermittently or continuous mode.
The substitute diesel of being produced, every technical indicator all reach or are better than the ordinary diesel oil performance index; On probation at the agricultural diesel oil car, starting, operation, load, climbing effect and ordinary diesel oil roughly the same because of price is low, receive praises from customers.
Embodiment 2
Adopt the present invention to produce substitute diesel.According to composition of raw materials and content (% by weight) ratio, promptly coal 50%, solvent 40%, zinc chloride 1%, the ratio of auxiliary agent 9%, the coal 500kg that gets the raw materials ready, solvent adopt the fraction of 340～380 ℃ of temperature of still kettle to make solvent 400kg, zinc chloride 10kg, hexadecanol 90kg altogether;
Manufacturing condition: at first raw coal is crushed to 1cm, then is crushed to 200 orders; Then changing agitating procedure over to, is the 500kg granularity that 200 purpose coal dusts, 400kg solvent, zinc chloride 10kg and auxiliary agent hexadecanol 90kg add respectively in the stirred pot, stirs; Then enter reactor, adopt Electric heating to be heated to 420 ℃, pressure is 6.0MPa, reacts 2 hours; Afterwards, change distillation process over to, still kettle internal heating to 380 ℃, cutting temperature is 340 ℃, and the fraction before 340 ℃ is for substituting gas oil, and 340～380 ℃ of fractions are solvent, and reusable edible, recrement are pitch; Gas oil changes blending process over to, add amyl nitrate at normal temperatures, and the add-on of amyl nitrate is determined with detected result, when the gas oil technical indicator reaches the regulation GB, should stop to add amyl nitrate; Usually, the amyl nitrate amount of filling is 0.5～1 ‰; Pass through filtering and impurity removing matter operation again, promptly produce substitute diesel.
Embodiment 3
By prescription of the present invention and component concentration (% by weight) ratio, coal 30%, solvent 60%, aluminum chloride 1%, the ratio of auxiliary agent stearyl alcohol 9% is prepared each material, coal 300kg, solvent 600kg, aluminum chloride 10kg, stearyl alcohol 90kg;
In the technological process of production, reactor is heated to 450 ℃, and reaction pressure is 6.89MPa, and the reaction times is 1 hour; Other operations are identical with aforementioned two embodiment, can produce qualified substitute diesel equally.
Embodiment 4
Compare by prescription of the present invention and component concentration (weight %), coal 50%, solvent 40%, zinc chloride 1%, the ratio of auxiliary agent 9%, prepare required starting material, coal 500kg, solvent 400kg, because production process is carried out continuously, solvent can directly extract 340～380 ℃ of fractions from distillation process and get final product, and auxiliary agent is stearyl alcohol 90kg, zinc chloride 10kg;
In the technological process of production, reaction is heated to 440 ℃, and reaction pressure is 5.8MPa, and the reaction times is 1.5 hours; Other operations and previous embodiment also can be produced qualified substitute diesel together.
Above-mentioned final product, every technical indicator all reaches the ordinary diesel oil standard, and cost is low, and equipment is simple, and less investment has promotional value very much.
Claims (2)
1. adopting coal is the method that main raw material(s) is produced substitute diesel, its technical process by broken, pulverize, stir, react, distill, concoct, filter each operation and form, it is characterized in that:
A) formula for raw stock and content (% by weight) ratio:
Coal: 60～30 aluminum chloride or zinc chloride: 1
Solvent: 30～60 auxiliary agents: 9
A) auxiliary agent is the wherein a kind of of methyl alcohol, hexadecanol or stearyl alcohol;
B) solvent: feeding intake first is carbolineum, and during the reaction continuous service, adopting the distillations of 340～380 ℃ of distillation process temperature is solvent;
C) blending agents is an amyl nitrate.
B) method and each operation technical parameter of production substitute diesel:
A) granularity of coal crushing is 1cm, and grinding particle size is 200 orders, and broken process should remove metal species impurity;
B) temperature of reaction: 410～450 ℃, pressure is 5.5～6.89MPa, and the reaction times is 1～3 hour;
C) distillation temperature: outlet temperature is 380 ℃, and the temperature that cuts of work in-process gas oil is 340 ℃, and it is 340～380 ℃ that the solvent cut thing cuts temperature;
D) the blending agents quantity of blending process adding, the diesel oil GB is determined the weight of dosing of blending agents; Usually under the state, blending agents should be by 0.5～1.0 ‰ of blending material.
2. be the method that main raw material(s) is produced substitute diesel according to the described employing coal of claim 1, it is characterized in that: when temperature of reaction was 420～440 ℃, reaction pressure was 5.8～6.0MPa, and the reaction times is 1.5～2.5 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510045938 CN1289637C (en) | 2005-02-25 | 2005-02-25 | Process for producing alternative diesel oil with coal as main raw materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510045938 CN1289637C (en) | 2005-02-25 | 2005-02-25 | Process for producing alternative diesel oil with coal as main raw materials |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1664071A CN1664071A (en) | 2005-09-07 |
| CN1289637C true CN1289637C (en) | 2006-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200510045938 Expired - Fee Related CN1289637C (en) | 2005-02-25 | 2005-02-25 | Process for producing alternative diesel oil with coal as main raw materials |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100392043C (en) * | 2006-01-25 | 2008-06-04 | 任春山 | Method for preparing substituted diesel oil by utilizing organic waste and coal |
| CN102533305B (en) * | 2012-02-20 | 2014-01-01 | 六盘水师范学院 | Method for improving co-liquefaction oil yield of coal and waste plastic by using mixed solvent |
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2005
- 2005-02-25 CN CN 200510045938 patent/CN1289637C/en not_active Expired - Fee Related
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Granted publication date: 20061213 Termination date: 20170225 |