CN105400537A - Method for processing oil and coal by using mixing refining technology - Google Patents
Method for processing oil and coal by using mixing refining technology Download PDFInfo
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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
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
- C10G1/06—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal by destructive hydrogenation
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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
- C10G45/00—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds
- C10G45/02—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbons; Hydrofinishing
- C10G45/14—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbons; Hydrofinishing with moving solid particles
- C10G45/16—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbons; Hydrofinishing with moving solid particles suspended in the oil, e.g. slurries
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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
- C10G69/00—Treatment of hydrocarbon oils by at least one hydrotreatment process and at least one other conversion process
- C10G69/02—Treatment of hydrocarbon oils by at least one hydrotreatment process and at least one other conversion process plural serial stages only
- C10G69/08—Treatment of hydrocarbon oils by at least one hydrotreatment process and at least one other conversion process plural serial stages only including at least one step of reforming naphtha
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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
- C10G70/00—Working-up undefined normally gaseous mixtures obtained by processes covered by groups C10G9/00, C10G11/00, C10G15/00, C10G47/00, C10G51/00
- C10G70/02—Working-up undefined normally gaseous mixtures obtained by processes covered by groups C10G9/00, C10G11/00, C10G15/00, C10G47/00, C10G51/00 by hydrogenation
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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
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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
- C10G2300/1037—Hydrocarbon fractions
- C10G2300/1044—Heavy gasoline or naphtha having a boiling range of about 100 - 180 °C
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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
- C10G2300/107—Atmospheric residues having a boiling point of at least about 538 °C
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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
- C10G2300/1077—Vacuum residues
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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
- C10G2300/1081—Alkanes
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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
- C10G2400/00—Products obtained by processes covered by groups C10G9/00 - C10G69/14
- C10G2400/02—Gasoline
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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
- C10G2400/00—Products obtained by processes covered by groups C10G9/00 - C10G69/14
- C10G2400/04—Diesel oil
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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
- C10G2400/00—Products obtained by processes covered by groups C10G9/00 - C10G69/14
- C10G2400/06—Gasoil
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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
- C10G2400/00—Products obtained by processes covered by groups C10G9/00 - C10G69/14
- C10G2400/26—Fuel gas
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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
- C10G2400/00—Products obtained by processes covered by groups C10G9/00 - C10G69/14
- C10G2400/30—Aromatics
Abstract
The invention relates to a method for processing oil and coal by using a mixing refining technology. The method comprises the following steps: preprocessing raw oil and coal according to a ratio of 97-30:3-70, adding hydrogen and a catalyst, allowing the above obtained mixture to enter a slurry bed hydrogenation device, carrying out gas treatment process treatment on a gas component produced by the slurry bed device o form a gas product; and carrying out first-stage or multi-stage hydrogenating treatment processes on a liquid component, carrying out catalytic reforming, and carrying out aromatic hydrocarbon extraction to obtain a liquid product. The method for processing oil and coal by using the mixing refining technology has the characteristics of high total yield, short process flow and high device utilization rate; and compared with like methods, the method provided by the invention has the advantages of great reduction of the investment, easy adjustment of the process route, high environmental protection degree, and very good integral effect.
Description
Technical field
The present invention relates to a kind of method adopting mixed refining processes oil and coal, belong to petrochemical complex and coal chemical technology.
Background technology
In recent years, world petroleum resource worsening shortages, and the heaviness of petroleum resources and in poor quality problem are more and more obvious, but along with the quick growth of economy, society grows with each passing day to the demand of petroleum products.Heavy Oil Processing Technology not only effectively can utilize petroleum resources, and the economic benefit of oil-processing enterprises can be improved, but, current refinery processing vacuum residuum (particularly heavy metal content is high) generally adopts delay coking process, its light oil yield is no more than 60%, and inorganization dust discharge during decoking can cause serious environmental pollution.
Based on the fundamental realities of the country that China's coal heavy wool is few, many enterprises coal liquifaction (Coal Chemical Industry) project of carrying out successively in recent years, substantially all adopt coal first gas processed, gas resynthesis be the technique of oil product (industrial chemicals), because project investment is huge, fluctuation of service, water consumption are many and the high reason slower development of carbon emission amount.
Claim:
In order to solve the problem, the invention provides a kind of method adopting mixed refining processes oil and coal.
Adopt a method for mixed refining processes oil and coal, be divided into three kinds of situations according to raw material difference:
When raw material comprises:
Oil: one or more combinations in long residuum, vacuum residuum, catalytic slurry, de-oiled asphalt and coal tar;
Coal: in brown coal, bituminous coal one or more combination time;
Work flow is: stock oil and coal are carried out pre-treatment according to the ratio of 97-30:3-70, then adds hydrogen and catalyzer, enter slurry bed system hydrogenation unit, and the gaseous fraction that slurry bed system device is produced becomes gas products after the process of gas processing operation; Liquid ingredient is successively through one or more levels hydrotreatment operation, and catalytic reforming operation, becomes liquid product after the process of Aromatics Extractive Project operation.
When raw material comprises:
Oil: crude oil;
Coal: in brown coal, bituminous coal one or more combination time;
Work flow is: crude oil is through air distillation, and be light oil distillate oil and gaseous fraction being not less than 250 DEG C of light constituents distilled out, restructuring is divided into atmospheric residue fraction; Atmospheric residue fraction and coal are carried out pre-treatment according to the ratio of 97-30:3-70, then adds hydrogen and catalyzer, enter slurry bed system hydrogenation unit, the gaseous fraction that slurry bed system device is produced becomes gas products after the process of gas processing operation; Liquid ingredient is successively through one or more levels hydrotreatment operation, and catalytic reforming operation, becomes liquid product after the process of Aromatics Extractive Project operation.
When raw material comprises:
Oil: crude oil, and one or more combinations in long residuum, vacuum residuum, catalytic slurry, de-oiled asphalt and coal tar;
Coal: in brown coal, bituminous coal one or more combination time;
Work flow: crude oil is through air distillation, and be light oil distillate oil and gaseous fraction being not less than 250 DEG C of light constituents distilled out, restructuring is divided into atmospheric residue fraction; Described heavy constituent and other stock oil and coal are carried out pre-treatment according to the ratio of 97-30:3-70, then adds hydrogen and catalyzer, enter slurry bed system hydrogenation unit, the gaseous fraction that slurry bed system device is produced becomes gas products after the process of gas processing operation; Liquid ingredient is successively through one or more levels hydrotreatment operation, and catalytic reforming operation, becomes liquid product after the process of Aromatics Extractive Project operation.
The aforementioned oil properties entering paste state bed reactor requires: saturated point of content >=6%, paraffinicity≤6%, aromaticity content >=15%;
The Property requirements entering the coal of paste state bed reactor is: hydrogen-to-carbon ratio >=0.55 of coal, volatile matter >=20%, air-dried moisture≤26%, air dried basis ash content≤27%, and particle diameter is≤470 μm; Coal comprises reaction coal and the coal as support of the catalyst;
Described liquid product is the one or more combination in gasoline, kerosene, diesel oil and aromatic hydrocarbons; Gas products is one or several combinations in dry gas, liquefied gas, alkene.
The cut that slurry bed system hydrogenation unit is produced comprises naphtha fraction, diesel oil distillate, also has dry gas and liquefied gas; Diesel oil distillate is sent into fixed bed device, generates petroleum naphtha, kerosene, diesel oil and heavy gas oil cut at this, heavy gas oil cut is sent into fixed bed hydrogenation device and produces petroleum naphtha, kerosene and diesel oil distillate; Petroleum naphtha, dry gas, liquefied gas and fixed bed hydrogenation device that slurry bed system device is produced produce dry gas, liquefied gas through light ends unit, complete the task of the naphtha fraction in desulfurization and gas recovery at this; Light ends unit produce petroleum naphtha and enter catalytic reforming unit with the petroleum naphtha that fixed bed hydrogenation device is produced, produce aromatic hydrocarbons and stop bracket gasoline.
Dry gas and liquefied gas that preferred light ends unit is produced and enter ethylene producing device with the petroleum naphtha that fixed bed hydrogenation device is produced.
The sour gas of preferred light ends unit enters sulfur recovery facility, recovery sulphur, and molten sulfur uses as vulcanizing agent, and rest part is as sulphur carrying device.
The oily coal tar that preferred slurry bed system device is produced uses as power or hydrogen feedstock after shaping.
Preferred coal is after coal-grinding, and a part carries out oily Coal pretreatment, and a part of hydrogen manufacturing enters slurry bed system hydrogenation unit.
The technology of the present invention effect:
Oil of the present invention and coal mixed refining technique are for raw material with the one or more combination of heavy crude, long residuum, vacuum residuum, catalytic slurry, de-oiled asphalt or coal tar wet goods mink cell focus and the young coal such as bituminous coal and/or brown coal, pass through hydrocracking reaction, mink cell focus and coal hydrogenation are cracked into the process of the product such as light oil and hydrocarbon gas, feature is the flow process of technique.Compared with conventional refinery process, this technique can effectively utilize heavy oil resources and coal resources, and course of processing no dust pollution, waste gas, waste liquid and useless solid quantity discharged are less, light oil yield is higher, and quality product is better, while bringing challenges to traditional refining technology, because its price is lower, and then improve the economic benefit of processing enterprise.Compared with coal liquifaction, less, light oil yield is higher for water loss and CO2 emissions, and quality product height is also better, and economic benefit is better.
Heavy oil is vacuum residuum, long residuum or coal tar after crude oil processing and the mixture of residual oil, and coal is bituminous coal.The mixing liquid product of oil coal is aromatic hydrocarbons, gasoline, boat coal and diesel oil, and each product proportion adjustable elastic is large, can adjust each product production flexibly according to market situation.
Take crude oil as raw material, crude oil is through air distillation, and the light constituent distilled out is benzoline and gaseous fraction, and restructuring is divided into atmospheric residue fraction, and benzoline as ethylene cracking material, also can enter catalytic reforming unit and make oil product or solvent oil.
The invention provides the technology transboundary of a kind of oil refining and Coal Chemical Industry, technique designed according to this invention, when with crude oil and coal for raw material, crude refining is become in the process of processed oil and chemicals again and driven the conversion of coal, overall light oil yield is more than 70%, close with the light oil yield of crude refining; When with mink cell focus and coal for raw material, the mink cell focus of low value and coal dust directly can be processed into aromatic hydrocarbons and processed oil, while raising mink cell focus transformation efficiency, drive the conversion of coal, overall light oil yield is about 70%.Two kinds of mode common features are:
1, technical process is short, utilization ratio of device is high, and compared with similar projects, investment significantly reduces.
2, the high-efficiency cleaning facilitating coal utilizes, and its light oil yield is higher than DCL/Direct coal liquefaction and indirect liquefaction;
3, according to the market requirement, products scheme can be adjusted flexibly, the accounting of the liquid products such as allotment aromatic hydrocarbons, gasoline, kerosene and diesel oil;
4, improve quality product, the boat coal density of producing is large, condensation point is low, has obvious quality-advantage, is particularly suitable for military aircraft; Relative to the petrol and diesel oil of other explained hereafter, the petrol and diesel oil of this explained hereafter can reach higher standard, and when not adding pour point depressant, the condensation point of diesel oil is all below-35 DEG C.
5, compared with refinery, avoid the dust uncontrollable discharge of coker, oxynitride discharge significantly reduces, and compared with the Coal Chemical Engineering Project of same size, water consumption and carbon emission significantly reduce.
The two organically fully utilizes by the present invention, build petrochemical complex and Coal Chemical Industry degree of depth integrative development pattern, improve the level of resources utilization, reduce crude oil consumption amount, realize the Sustainable development of petrochemical industry and coal chemical industry, reduce the dependence to imported crude oil simultaneously, promote national energy security.
Accompanying drawing explanation
Fig. 1 is device and the schematic flow sheet of the embodiment of the present invention 1;
Fig. 2 is device and the schematic flow sheet of the embodiment of the present invention 2.
Embodiment
In order to better explain the present invention, below in conjunction with embodiment, the present invention is further explained.
Embodiment 1
1, raw material: with crude oil and bituminous coal for raw material, its character is in table 1 and table 2.
The essential property table of table 1. crude oil
The essential property table of table 2. coal
2, products scheme: this products scheme does not consider the product of ethylene unit, and products scheme is in table 3.
Table 3. products scheme table
| Liquefied gas yield, wt% | 4.2 |
| Oil coal tar productive rate, wt% | 12.4 |
| Other | 8.4 |
| Light oil yield, wt% | 75 |
| Each product accounting in light oil, wt% | |
| Petroleum naphtha | 6.0 |
| Gasoline | 15.3 |
| Boat coal | 18.3 |
| Diesel oil | 24.4 |
| Aromatic hydrocarbons | 36.0 |
3, work flow: crude oil distills through atmospheric distillation plant, more than 250 DEG C, fractionate out petroleum naphtha, kerosene, diesel oil, atmospheric residue fraction, also have a small amount of dry gas and liquefied gas, long residuum and coal carry out pre-treatment according to the ratio of 1:1, add hydrogen and catalyzer again, enter slurry bed system hydrogenation unit, slurry bed system hydrogenation unit is produced naphtha fraction, diesel oil distillate, is also had dry gas and liquefied gas, diesel oil distillate is sent into fixed bed device (hydro-upgrading unit), generate petroleum naphtha, kerosene, diesel oil and heavy gas oil cut at this, the kerosene that heavy gas oil cut, atmospheric unit are produced is sent into fixed bed hydrogenation device (Hydrocracking unit) together with diesel oil distillate and produces petroleum naphtha, kerosene and diesel oil distillate, the dry gas of petroleum naphtha, dry gas, liquefied gas and the fixed bed hydrogenation device production that atmospheric unit, slurry bed system device are produced, liquefied gas enter light ends unit, complete the task of the naphtha fraction in desulfurization and gas recovery at this, light ends unit produce petroleum naphtha and be divided into two-way with the petroleum naphtha that fixed bed hydrogenation device is produced, one tunnel enters catalytic reforming unit (containing Aromatics Extractive Project) and produces aromatic hydrocarbons and stop bracket gasoline, another road and dry gas, liquefied gas is together as the raw material of cracking of ethylene, enter ethylene unit, the sour gas of light ends unit enters sulfur recovery facility (containing sewage stripping and solvent reclamation), recovery sulphur, molten sulfur uses as vulcanizing agent, rest part is as sulphur carrying device, the oily coal tar that slurry bed system device is produced uses as power or hydrogen feedstock after shaping.Concrete technical process as shown in Figure 1.
Embodiment 2
1, raw material: with vacuum residuum and bituminous coal for raw material, Vacuum Residue Properties is in table 4, and bituminous coal character is with the bituminous coal of example 1.
The essential property table of table 4. vacuum residuum
2, products scheme: products scheme is in table 5.
Table 5. products scheme table
| Liquefied gas yield, wt% | 5.2 |
| Oil coal tar productive rate, wt% | 14.8 |
| Other | 5 |
| Light oil yield, wt% | 70 |
| Each product accounting in light oil, wt% | |
| Gasoline | 20 |
| Boat coal | 15 |
| Diesel oil | 18 |
| Aromatic hydrocarbons | 47 |
3, work flow: carry out pre-treatment by the stock oil selected and coal according to the ratio of 1:1, then add hydrogen and catalyzer, enter slurry bed system hydrogenation unit, slurry bed system hydrogenation unit is produced naphtha fraction, diesel oil distillate, also had dry gas and liquefied gas; Diesel oil distillate is sent into fixed bed device (hydro-upgrading unit), generate petroleum naphtha, kerosene, diesel oil and heavy gas oil cut at this, heavy gas oil cut is sent into fixed bed hydrogenation device (Hydrocracking unit) and produces petroleum naphtha, kerosene and diesel oil distillate; Petroleum naphtha, dry gas, liquefied gas and fixed bed hydrogenation device that slurry bed system device is produced produce dry gas, liquefied gas through light ends unit, complete the task of the naphtha fraction in desulfurization and gas recovery at this; The petroleum naphtha that light ends unit is produced and enter catalytic reforming unit (containing Aromatics Extractive Project) with the petroleum naphtha that fixed bed hydrogenation device is produced and produce aromatic hydrocarbons and stop bracket gasoline; The sour gas of light ends unit enters sulfur recovery facility (containing sewage stripping and solvent reclamation), recovery sulphur, molten sulfur uses as vulcanizing agent, and rest part is as sulphur carrying device, and the oily coal tar that slurry bed system device is produced uses as power or hydrogen feedstock after shaping.Concrete technical process as shown in Figure 2.
As can be seen from above-described embodiment, a kind of method light oil total recovery of mixed refining processes oil and coal that adopts of the present invention is high, technical process is short, utilization ratio of device is high, compared with similar projects, investment significantly reduces, and operational path adjustment easily, environmental friendliness is high, and entirety has extraordinary effect.
The foregoing is only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; the replacement that can expect easily, other processing mode such as adopted with other raw material hydrogen manufacturing, other process approach of sulphur, oily coal tar, the preparation path of ethene and each product, cut all should be encompassed within protection scope of the present invention according to the selection etc. of practical situation.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (10)
1. adopt a method for mixed refining processes oil and coal, it is characterized in that:
Raw material comprises:
Oil: one or more combinations in long residuum, vacuum residuum, catalytic slurry, de-oiled asphalt and coal tar;
Coal: one or more combinations in brown coal, bituminous coal;
Work flow: stock oil and coal are carried out pre-treatment according to the ratio of 97-30:3-70, then adds hydrogen and catalyzer, enter slurry bed system hydrogenation unit, the gaseous fraction that slurry bed system device is produced becomes gas products after the process of gas processing operation; Liquid ingredient is successively through one or more levels hydrotreatment operation, and catalytic reforming operation, becomes liquid product after the process of Aromatics Extractive Project operation.
2. adopt a method for mixed refining processes oil and coal, it is characterized in that:
Raw material comprises:
Oil: crude oil;
Coal: one or more combinations in brown coal, bituminous coal;
Work flow: crude oil is through air distillation, and be light oil distillate oil and gaseous fraction being not less than 250 DEG C of light constituents distilled out, restructuring is divided into atmospheric residue fraction; Atmospheric residue fraction and coal are carried out pre-treatment according to the ratio of 97-30:3-70, then adds hydrogen and catalyzer, enter slurry bed system hydrogenation unit, the gaseous fraction that slurry bed system device is produced becomes gas products after the process of gas processing operation; Liquid ingredient is successively through one or more levels hydrotreatment operation, and catalytic reforming operation, becomes liquid product after the process of Aromatics Extractive Project operation.
3. adopt a method for mixed refining processes oil and coal, it is characterized in that:
Raw material comprises:
Oil: crude oil, and one or more combinations in long residuum, vacuum residuum, catalytic slurry, de-oiled asphalt and coal tar;
Coal: one or more combinations in brown coal, bituminous coal;
Work flow: crude oil is through air distillation, and be light oil distillate oil and gaseous fraction being not less than 250 DEG C of light constituents distilled out, restructuring is divided into atmospheric residue fraction; Described heavy constituent and other stock oil and coal are carried out pre-treatment according to the ratio of 97-30:3-70, then adds hydrogen and catalyzer, enter slurry bed system hydrogenation unit, the gaseous fraction that slurry bed system device is produced becomes gas products after the process of gas processing operation; Liquid ingredient is successively through one or more levels hydrotreatment operation, and catalytic reforming operation, becomes liquid product after the process of Aromatics Extractive Project operation.
4., according to the arbitrary described method of claim 1-3, it is characterized in that the oil properties requirement entering paste state bed reactor is: saturated point of content >=6%, paraffinicity≤6%, aromaticity content >=15%;
The Property requirements entering the coal of paste state bed reactor is: hydrogen-to-carbon ratio >=0.55 of coal, volatile matter >=20%, air-dried moisture≤26%, air dried basis ash content≤27%, and particle diameter is≤470 μm; Coal comprises reaction coal and the coal as support of the catalyst.
5., according to the arbitrary described method of claim 1-3, it is characterized in that liquid product is the one or more combination in gasoline, kerosene, diesel oil and aromatic hydrocarbons; Gas products is one or several combinations in dry gas, liquefied gas, alkene.
6., according to the arbitrary described method of claim 1-3, it is characterized in that the cut that slurry bed system hydrogenation unit is produced comprises naphtha fraction, diesel oil distillate, also has dry gas and liquefied gas; Diesel oil distillate is sent into fixed bed device, generates petroleum naphtha, kerosene, diesel oil and heavy gas oil cut at this, heavy gas oil cut is sent into fixed bed hydrogenation device and produces petroleum naphtha, kerosene and diesel oil distillate; Petroleum naphtha, dry gas, liquefied gas and fixed bed hydrogenation device that slurry bed system device is produced produce dry gas, liquefied gas through light ends unit, complete the task of the naphtha fraction in desulfurization and gas recovery at this; Light ends unit produce petroleum naphtha and enter catalytic reforming unit with the petroleum naphtha that fixed bed hydrogenation device is produced, produce aromatic hydrocarbons and stop bracket gasoline.
7. method according to claim 6, is characterized in that the dry gas that light ends unit is produced and liquefied gas and enters ethylene producing device with the petroleum naphtha that fixed bed hydrogenation device is produced.
8. method according to claim 6, it is characterized in that the sour gas of light ends unit enters sulfur recovery facility, recovery sulphur, molten sulfur uses as vulcanizing agent, and rest part is as sulphur carrying device.
9. method according to claim 6, is characterized in that the oily coal tar that slurry bed system device is produced uses as power or hydrogen feedstock after shaping.
10. method according to claim 6, it is characterized in that coal is after coal-grinding, a part carries out oily Coal pretreatment, and a part of hydrogen manufacturing enters slurry bed system hydrogenation unit.
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| PCT/CN2015/094148 WO2017067029A1 (en) | 2015-10-23 | 2015-11-09 | Method for processing oil and coal using mixed refining process |
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| CN116948683B (en) * | 2023-09-15 | 2023-12-12 | 克拉玛依市先能科创重油开发有限公司 | Slurry bed reaction on-line switching method using cycloalkyl residual oil and ethylene cracking tar as raw materials |
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