CN101113346A - Method for harmony production of bunker fuel by coal oil - Google Patents
Method for harmony production of bunker fuel by coal oil Download PDFInfo
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- CN101113346A CN101113346A CNA200610108947XA CN200610108947A CN101113346A CN 101113346 A CN101113346 A CN 101113346A CN A200610108947X A CNA200610108947X A CN A200610108947XA CN 200610108947 A CN200610108947 A CN 200610108947A CN 101113346 A CN101113346 A CN 101113346A
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Abstract
The invention relates to a method used for producing bunker fuel oil by blending low-temperature carbonization coal tar. The method is to respectively measure the properties of the part over water and the part below water of the low-temperature carbonization coal tar, a blending experiment of the part over water and the part below water of coal tar is practiced according to the measurement result and bunker fuel oil standards and the main indexes of the blend oil are determined to obtain proper blending ration and polypropylene higher alcohols ester additive is added to get qualified bunker fuel oil.
Description
Technical field
The present invention relates to the production of oil fuel, relate in particular to a kind of method that low-temperature pyrolysis coal tar is treated and marine fuel oil is produced in mediation of utilizing.
Background technology
Oil fuel mainly is to be made by the cracking residual oil of oil and straight run residual oil, is characterized in that viscosity is big, and it is many to contain non-hydrocarbon compound, colloid, bituminous matter.According to purposes, oil fuel is divided into marine engine oil fuel and furnace fuel oil two big classes.The former is mixed by straight run heavy oil and a certain proportion of diesel oil, is used for the large-sized low-speed marine diesel; The latter mainly is vacuum residuum or cracking Residual oil or the mixture of the two, or calls in the heavy crude oil fuel that an amount of cracking light oil is made, and acts as a fuel for various industrial furnaces or boiler.
Marine fuel oil normally mixes the light oil constituents mediation and forms in heavy oil component, this is not only because the marine fuel oil specification is having certain requirement aspect the indexs such as viscosity and condensation point, and in order to prevent that the cohesion of marine fuel oil medium pitch matter and greasy filth from generating precipitation, must keep the good stability and the compatibleness of oil fuel.Oil product often because the stability and the compatibleness of oil product are poor, use and produce phenomenon influences such as deposition in the storage tank, whizzer overload and filter stoppage, but oil specification itself is in this respect then without any index in actual use.Mix the character of light oil and quantity the stability and the compatibleness of marine fuel oil had very big influence.Mix light oil and surpass certain ratio, can break the balance between bituminous matter and the oily hydrocarbon medium, cause bituminous matter to condense and precipitate, aromatic hydrocarbons is not easy to cause segregation greatly to bitum intermiscibility (or avidity), therefore (Cai Zhi etc. are modulated in the more secondary processing last running of general most employing aromaticity content, " oil product reconciliation techniques ", Beijing: Sinopec press, 2006).
Along with the fast development of Chinese national economy, the demand of the energy is also being increased day by day, as the oil fuel on energy basis, the effect in Economic development is obvious day by day.In 10 years of 1991～2000, the consumption of China's oil fuel year remains on 3,500 ten thousand tons～3,800 ten thousand tons level always, oil fuel output then reduces to 1,900 ten thousand tons by 3,500 ten thousand tons, although the consumption amount of increase of oil fuel was little in recent years, but total demand still has sizable vacancy need remedy (production department of China PetroChemical Corporation for the domestic market, " petrochemicals complete works ", Beijing: Sinopec press, 1992).Because crude production rate and newly-increased oil-refining capacity deficiency, the die is cast for main petrochemical material of following China and processed oil supply shortage, and price also will be kept a high position.China has processed mink cell focus and has paid close attention, by the end of the year 2005, except that raising the sub-petrochemical industry 1,600,000 t/a heavy oil upgrading projects of having completed, China also has at least 14 delayed coking projects or soon to build, wherein scale has 7 more than 1,000,000 t/a, and aggregated capacity surpasses 1,400 ten thousand t/a.Improving constantly of heavy crude working ability significantly reduced the heavy oil resource that comes into the market, and its price also continues soaring.In order to reduce cost, to meet the need of market, the substitute of seeking heavy oil is extremely urgent.
Coal tar is resulting a kind of product liquid in the dry distillation of coal process, and the tar that high temperature carbonization (being coking) obtains is called high temperature carbonization coal tar (abbreviation coal-tar heavy oil), and the tar that low-temperature pyrolysis obtains is called low-temperature pyrolysis coal tar (abbreviation coalite tar).Because cheap, the former coal tar that is used as industrial chemicals begins to be much accounted of.Aspect coal tar production boiler oil, people such as Yu Lianhai are main raw material with coal tar, by adding emulsifying water, blending blending and suitable processing, prepare conformance with standard, be suitable for oil fuel (Yu Lianhai, Pan Xiaokui, the Qian Jianqing etc. of boiler combustion, " research of coal tar emulsifying preparation synthetic fuel oil ", " the metallurgical energy ", 2005,24 (1): 41-44).
The research that at present the coal tar reconciliation techniques is used to produce marine fuel oil is less, the industrialization of still being unrealized.Therefore, develop a kind of low-temperature pyrolysis coal tar that is in harmonious proportion and produce the method for marine fuel oil, and be convenient to industrialization, be of great practical significance.
Summary of the invention
The technical problem that institute of the present invention desire solves is to study provides a kind of method of utilizing the mediation production marine fuel oil of low-temperature pyrolysis coal tar, not only makes full use of cheap coal tar, and has reduced the production cost of marine fuel oil.
Provided by the invention coal tar is in harmonious proportion the method for producing marine fuel oil, comprises:
The above water of low-temperature pyrolysis coal tar is separated with underwater portion, collect and obtain two part oil products;
Measure the performance index of above water and underwater portion oil product respectively, contrast, find out the bigger index of oil quality influence with the relevant criterion of marine fuel oil;
Above water and underwater portion oil product are allocated experiment, and the bigger index of influence has all met the bunker fuel oil standard in the oil product after allotment, determines the allotment ratio of above water and underwater portion in view of the above;
Above water and underwater portion are become mixed oil according to determined allotment mixed, add additive, further being in harmonious proportion becomes marine fuel oil, and described additive is selected from polyacrylic acid high-carbon alcohol ester, add-on is 0.01～0.1% of a mixed oil quality, is deployed into required oil fuel.
The proposition of the inventive method is based on the characteristics of low-temperature pyrolysis coal tar itself, by measuring relatively itself and the performance index of marine fuel oil, by suitably allotment and processing, finally provides the marine fuel oil that meets relevant criterion again.According to relevant criterion, the performance index of marine fuel oil mainly comprise kinematic viscosity, flash-point, last pour point, carbon residue, ash content, moisture, mechanical impurity, density and sulphur content etc., the applicant discovers, the above water of low-temperature pyrolysis coal tar oil product and these character of underwater portion oil product are measured respectively, with measurement result and marine fuel oil standard control, find out wherein bigger index with standard difference, the characteristic index that causes in other words conj.or perhaps oil product not use as marine fuel oil, promptly, by suitable allotment experiment, investigate the changing conditions of oil product index in harmonic process, determine to influence the leading indicator of mixed oil quality, after above water oil product and underwater portion oil product are allocated with a suitable proportion, this characteristic index also can meet the bunker fuel oil standard, thereby determines the above water of used coal tar and the allotment ratio between the underwater portion oil product.
Also need to add in the mediation oil product after the allotment have pour point depression, the additive of multiple function such as viscosity reduction, pour point depressing, guarantee that it has good stability and compatibleness, become qualified marine fuel oil (for example 180 bunker oil or 380 bunker oil).
Carrying out the mediation experiment of the above water and the underwater portion oil product of coal tar, determine to influence the leading indicator of mixed oil quality, thereby obtain suitable harmonic proportion, and add the qualified bunker fuel oil production of Additive Production, is key of the present invention.Preferably, polyacrylic acid high-carbon alcohol ester comprises polyacrylic acid 14 esters, polyacrylic acid hexadecyl ester or polyoctodecyl acrylate.Generally speaking, the add-on of this additive can be 0.01～0.05% of mixed oil quality.
For the coal tar that produces under different areas and the different condition, can there be certain difference between its performance index, the leading indicator of being assert that influences oil quality also can be different, therefore above-mentioned allotment ratio and allotment benchmark thereof may be different, but all can determine this ratio with comparalive ease according to the method described above.
The method according to this invention, if a certain performance test exceeds standard seriously, only be difficult to overcome by allocating, perhaps carrying out suitable processing just can overcome, can before mediation, carry out suitable pre-treatment, for example, when measurement result showed that the moisture content of above water and/or underwater portion oil product surpasses described standard, this method also comprised the process of it being implemented dehydration; Usually also can comprise process to described oil product filtering and removing mechanical impurity.Help making oil product after the allotment to be more prone to meet the quality standard of marine fuel oil by suitable pre-treatment.Pre-treatment at different index item all can be adopted known and any feasible method.These pre-treatment can be to above water with carry out respectively after underwater portion separates, also can be after earlier whole coal tar being implemented to handle again row separate.
Preferably, described dehydration can heat collection moisture at 70 ℃～140 ℃ organic solvent jointly for add boiling point in oil product.Described organic solvent comprises toluene, sherwood oil, heptane or octane, and the volume ratio of organic solvent and this oil product is 1: 10～1: 3 (agent-oil ratio).For the benefit of remove the moisture in the oil product, dehydration is with organic solvent and oil product is common heated 80 ℃～100 ℃ of Heating temperatures 1～3 hour.For example, adopt the method for distillation dehydration, low-temperature pyrolysis coal tar oil product is positioned in the distilling flask, add organic solvent, in 80 ℃～100 ℃ scopes of temperature, heated 1～3 hour, moisture is taken out of by solvent.
When removing the mechanical impurity pre-treatment, then can adopt filtering method.
The applicant discovers, except the impurity that dewaters, takes off was handled, some coal tar may also need to carry out earlier desulfurization to be handled, and sulphur content wherein can be met the requirements.
Pre-treatments such as above-mentioned dehydration, off line tool impurity, desulfurization can be implemented before separating above water and underwater portion, also can implement respectively at above water and underwater portion oil product.
For the coalite tar of majority, generally can other indexs except that density be met the requirements earlier by pre-treatment, by being allocated with suitable proportion, above water and underwater portion oil product produce qualified bunker oil then.
In a word, the enforcement of the inventive method has tangible economic implications for the research and the range of application of developing coal tar, and simultaneously, this method is easy and simple to handle, is convenient to industrializing implementation, no matter be that realization from economic benefit and social benefit all has crucial meaning.
Embodiment
Further describe technical characterstic of the present invention below by specific embodiment, but but these embodiment do not constitute any qualification to the present invention's practical range.
Embodiment 1
Select Shenmu County, Shaanxi low-temperature pyrolysis coal tar, Preliminary detection thinks that its water content and content of impurities are higher, therefore dewaters earlier and removes the mechanical impurity pre-treatment.The organic solvent of selecting during dehydration is a toluene, and agent-oil ratio is 1: 5, places water distilling apparatus, and temperature is 80 ℃, and the time is 2 hours, removes excessive moisture.Adopt filtering method when removing mechanical impurity.
Shenmu County's low-temperature pyrolysis coal tar oil product after the above-mentioned processing is separated, collect above water and underwater portion respectively, measure its performance index respectively, contrast with the bunker fuel oil standard by (subordinate list 1), determine that density is the leading indicator that influences the mixed oil quality, carry out the mediation experiment of the above water and the underwater portion of coal tar, the mediation mass ratio of determining the two is 30: 70.Additive is selected the polyacrylic acid hexadecyl ester, and add-on is 0.01～0.02% of a mixed oil quality, is in harmonious proportion to obtain qualified bunker fuel oil production.
Above-mentioned impurity and the processed of taking off also can be to implement respectively at above water and underwater portion oil product after having carried out in advance separating.
Embodiment 2
Select Shenmu County, Shaanxi low-temperature pyrolysis coal tar, working method is all identical with embodiment 1 with measurement result, but the organic solvent of selection is a sherwood oil when dewatering.
Embodiment 3
Select Shenmu County, Shaanxi low-temperature pyrolysis coal tar, working method is all identical with embodiment 1 with measurement result, but the mediation of the above water of coal tar and underwater portion experiment, the mediation mass ratio of determining the two is 20: 80.
Embodiment 4
Select Shenmu County, Shaanxi low-temperature pyrolysis coal tar, first filtering and removing mechanical impurity, separated and collected above water and underwater portion oil product then, the pre-treatment of dewatering respectively.The organic solvent of selecting during dehydration is a sherwood oil, and agent-oil ratio is 1: 5, and temperature is 80 ℃, and the time is 2 hours.Measure the performance index of dehydration back two part oil products respectively.
According to Shenmu County's low-temperature pyrolysis coal tar oil product above water and underwater portion The performance test results and bunker fuel oil standard (subordinate list 1), determine that density is the leading indicator that influences the mixed oil quality, carry out the mediation experiment of the above water and the underwater portion of coal tar, the mediation mass ratio of selecting the two is 20: 80, additive is selected the polyacrylic acid hexadecyl ester, add-on is 0.01～0.02% of a mixed oil quality, is in harmonious proportion to obtain qualified bunker fuel oil production.
Embodiment 5
Select Shenmu County, Shaanxi low-temperature pyrolysis coal tar, working method is all identical with embodiment 4 with measurement result, but the organic solvent that when dehydration selected is a toluene, and the mediation mass ratio of above water and underwater portion oil product is 30: 70, and the additive of selection is a polyoctodecyl acrylate when being in harmonious proportion.
Embodiment 6
Select Shenmu County, Shaanxi low-temperature pyrolysis coal tar, working method is all identical with embodiment 5 with measurement result, but the mediation mass ratio of above water and underwater portion oil product is 20: 80.
Subordinate list 1 Shenmu County's coal tar above water and underwater portion test result and corresponding bunker fuel oil standard
| Test index | Shenmu County's coal tar above water | Shenmu County's coal tar underwater portion | 180 bunker oil | 380 bunker oil | Testing standard |
| Kinematic viscosity, 50 ℃, mm 2/s | 10.18 | 69.71 | ＜180 | ＜380 | GB/T 265 |
| Flash-point (closed-cup), ℃ | 106 | 124 | ＞60 | ＞60 | GB/T 261 |
| Last pour point, ℃ | 24 | 28 | ＜30 | ＜30 | GB/T 3535 |
| Carbon residue, electric furnace process % | 1.92 | 4.33 | ＜15 | ＜18 | GB/T 0170 |
| Ash content, % (m/m) | 0.01 | 0.023 | ＜0.10 | ＜0.15 | GB/T 508 |
| Moisture, % (ml/m) | 0.45 | 0.82 | ＜1.0 | ＜1.0 | GB/T 260 |
| Mechanical impurity, % (m/m) | 0.06 | 0.09 | ＜0.10 | ＜0.10 | GB/T 511 |
| Density, kg/m 3 | 943.8 | 1015.4 | ＜991 | ＜991 | GB/T 1884 |
| Sulphur content, % (m/m) | 0.12 | 0.12 | ＜3.5 | ＜3.5 | ASTM D4629 |
Claims (10)
1. one kind is in harmonious proportion the method for producing marine fuel oil to coal tar, comprising:
The above water of low-temperature pyrolysis coal tar is separated with underwater portion, collect and obtain two part oil products;
Measure the performance index of above water and underwater portion oil product respectively, contrast, find out the bigger index of oil quality influence with the relevant criterion of marine fuel oil;
Above water and underwater portion oil product are allocated experiment, and the bigger index of influence has all met the bunker fuel oil standard in the oil product after allotment, determines the allotment ratio of above water and underwater portion in view of the above;
Above water and underwater portion are become mixed oil according to determined allotment mixed, add additive, further being in harmonious proportion becomes marine fuel oil, and described additive is selected from polyacrylic acid high-carbon alcohol ester, add-on is 0.01～0.1% of a mixed oil quality, is deployed into required oil fuel.
2. method according to claim 1 wherein, is measured the performance index of above water and underwater portion oil product, comprises its kinematic viscosity of mensuration, flash-point, goes up pour point, carbon residue, ash content, moisture, mechanical impurity, density and sulphur content.
3. method according to claim 1 and 2, wherein, when measurement result showed that the moisture content of above water and/or underwater portion oil product surpasses described standard, this method also comprised the process of it being implemented dehydration.
4. method according to claim 3, wherein, described dehydration heats collection moisture for adding boiling point jointly at 70 ℃～140 ℃ organic solvent.
5. method according to claim 4, wherein, described organic solvent comprises toluene, sherwood oil, heptane or octane, the volume ratio of organic solvent and this oil product is 1: 10～1: 3.
6. according to claim 4 or 5 described methods, wherein, dehydration is with organic solvent and oil product is common heated 80 ℃～100 ℃ of Heating temperatures 1～3 hour.
7. method according to claim 1 and 2, it also comprises the process to described oil product filtering and removing mechanical impurity.
8. method according to claim 1, wherein, polyacrylic acid high-carbon alcohol ester comprises polyacrylic acid 14 esters, polyacrylic acid hexadecyl ester or polyoctodecyl acrylate.
9. one kind is in harmonious proportion the method for producing marine fuel oil to coal tar, comprising:
The above water of low-temperature pyrolysis coal tar is separated with underwater portion, collect and obtain two part oil products;
Above-mentioned two part oil products are all implemented off line tool impurity and processed respectively, the performance index of the oil product after the processing are compared with the bunker fuel oil standard, have only density not meet this standard, off line tool impurity adopts and filters, processed then is to add boiling point at 70 ℃～140 ℃ organic solvent in oil product, and the temperature of control 80 ℃～100 ℃ heated 1～3 hour jointly;
To allocate according to definite ratio through two part oil products of above-mentioned processing, and make the density of the mixed oil that obtains meet described bunker fuel oil standard;
Add polyacrylic acid higher alcohols ester additive in above-mentioned mixed oil, add-on is 0.01～0.1% of a mixed oil quality, is deployed into required oil fuel.
10. a marine fuel oil utilizes low-temperature pyrolysis coal tar to form according to claim 1 or 9 described method allotments.
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| CN200610108947A CN101113346B (en) | 2006-07-28 | 2006-07-28 | Method for mixing for production of bunker fuel by coal oil |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101921633A (en) * | 2010-09-06 | 2010-12-22 | 锦州港船舶燃料供应有限责任公司 | Fuel oil composition |
| CN106556685A (en) * | 2015-09-24 | 2017-04-05 | 中国石油化工股份有限公司 | A kind of method for quick of heavy bunker fuel oil storage stability |
| CN108521781A (en) * | 2015-12-28 | 2018-09-11 | 国际壳牌研究有限公司 | Fuel oil " A " composition |
| CN109705909A (en) * | 2017-10-25 | 2019-05-03 | 中国石油化工股份有限公司 | By the method for coal tar production bunker fuel oil |
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| US4030894A (en) * | 1975-06-30 | 1977-06-21 | Interlake, Inc. | Stabilized fuel slurry |
| CN1012072B (en) * | 1988-08-27 | 1991-03-20 | 任春山 | Formulation and preparation of fuel reagent replacing diesel |
| CN1019586B (en) * | 1990-01-11 | 1992-12-23 | 任春山 | Formulation of substituted fuel oil for gasoline and its compounding process |
| RU2087403C1 (en) * | 1991-05-22 | 1997-08-20 | Юрий Федорович Просянов | Method of conveyance of dehydrated high-viscosity liquid fuel |
| CN1090316A (en) * | 1993-01-19 | 1994-08-03 | 郭德明 | Effective energy-saving oil fuel additive |
| CN1226397C (en) * | 2002-11-18 | 2005-11-09 | 中唯炼焦技术国家工程研究中心有限责任公司 | Oil for fuel preparation modified from coke tar refuse in cokeoven plant and preparing method thereof |
| CN1276059C (en) * | 2004-07-30 | 2006-09-20 | 山西东辉煤焦化集团有限公司 | Process for producing chemical industry products and fuel oil from coal tar |
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- 2006-07-28 CN CN200610108947A patent/CN101113346B/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101921633A (en) * | 2010-09-06 | 2010-12-22 | 锦州港船舶燃料供应有限责任公司 | Fuel oil composition |
| CN101921633B (en) * | 2010-09-06 | 2012-12-19 | 锦州港船舶燃料供应有限责任公司 | Fuel oil composition |
| CN106556685A (en) * | 2015-09-24 | 2017-04-05 | 中国石油化工股份有限公司 | A kind of method for quick of heavy bunker fuel oil storage stability |
| CN106556685B (en) * | 2015-09-24 | 2019-01-25 | 中国石油化工股份有限公司 | A kind of rapid detection method of heavy bunker fuel oil storage stability |
| CN108521781A (en) * | 2015-12-28 | 2018-09-11 | 国际壳牌研究有限公司 | Fuel oil " A " composition |
| CN108521781B (en) * | 2015-12-28 | 2020-07-24 | 国际壳牌研究有限公司 | Fuel oil "A" composition |
| US11091714B2 (en) | 2015-12-28 | 2021-08-17 | Shell Oil Company | Fuel oil “A” composition |
| CN109705909A (en) * | 2017-10-25 | 2019-05-03 | 中国石油化工股份有限公司 | By the method for coal tar production bunker fuel oil |
| CN109705909B (en) * | 2017-10-25 | 2020-11-13 | 中国石油化工股份有限公司 | Method for producing bunker fuel oil from coal tar |
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