CN104152169B - A kind of technique of Methanol diesel oil - Google Patents
A kind of technique of Methanol diesel oil Download PDFInfo
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- CN104152169B CN104152169B CN201410416571.3A CN201410416571A CN104152169B CN 104152169 B CN104152169 B CN 104152169B CN 201410416571 A CN201410416571 A CN 201410416571A CN 104152169 B CN104152169 B CN 104152169B
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Abstract
The object of the present invention is to provide a kind of can be the technique of the high-quality diesel oil being rich in straight chain hydrocarbon by methanol conversion.In this technique, be first synthetic gas by the cartalytic decomposition effect of methyl alcohol by methanol conversion, then in same reactor, again synthetic gas produced the diesel component being rich in straight chain hydrocarbon by Fischer-Tropsch synthesis.Utilize the present invention, in the relatively oversaturated situation in ammonia from coal market, the methanol conversion of a part can be become diesel oil fuel, realize the efficiency utilization to existing resource.
Description
Technical field
The present invention relates to the technique that a kind of methanol conversion utilizes, being specifically related to a kind of is the technological process of the high-quality diesel oil being rich in straight chain hydrocarbon by methanol conversion.
Background technology
In order to improve the security of energy utilization structure, reduce the degree depending on petroleum resources unduly, the domestic investment construction carrying out a large amount of Coal Chemical Industries after entering 21 century, near large-scale coal storage base, large quantities of Coal Chemical Base goes into operation operation, and multiple is that the technique in source is widely used at different Coal Chemical Bases with coal resource.The source of Coal Chemical Industry technique, substantially be all that coal is transformed into synthetic gas (gas mixture of CO and H2) through gasification, for economy and security consideration, synthetic gas cannot to realize as Sweet natural gas by Cemented filling to user, so after first must being translated into some basic industrial chemicals, then utilize or accumulating.Wherein, be methyl alcohol by Synthetic holography be a kind of conventional process means, domestic had many families large-scale take coal as the methanol production base of raw material.Methyl alcohol is a kind of widely used basic chemical raw materials inherently.Senior alcohols can be prepared from methyl alcohol, ester compound, more derivative can be synthesized with other industrial chemicals such as benzene, and methyl alcohol also can be converted into Fuel Petroleum.The MTG technology of Mobile company is exactly the technique of typical preparing gasoline by methanol.In MTG technique, the ZSM-5 molecular sieve of the various modification of main employing, with the conversion of two sections, fixed bed, first paragraph is dimethyl ether by methanol dehydration, generates gasoline from the mixture of first paragraph methyl alcohol, dme and water out second segment reactor with ZSM-5 contact action.Be diesel oil by methanol conversion, that will make the application surface of the technique from methyl alcohol in Coal Chemical Industry more widen.
Summary of the invention
The object of the present invention is to provide a kind of can be the technique of the high-quality diesel oil being rich in straight chain hydrocarbon by methanol conversion.In this technique, be first synthetic gas by the cartalytic decomposition effect of methyl alcohol by methanol conversion, the namely gas mixture of CO and H2, then produces synthetic gas the diesel component being rich in straight chain hydrocarbon again in same reactor by Fischer-Tropsch synthesis.
Methanolysis is the reaction of synthetic gas is a reaction of absorbing heat, and Cu-series catalyst carries out, such as Cu-Zn-Al system.Consider from thermodynamics, favors low temperature carries out in methyl alcohol to the direction being decomposed into synthetic gas, but consider from kinetics, in order to make reaction process effectively carry out, in actual industrial process, methyl alcohol is decomposed into the temperature of reaction of synthetic gas between 200 DEG C to 280 DEG C under catalyst action.
The process of a heat release through the process that F-T synthesis produces diesel component by synthetic gas, how to carry out on Co series catalysts, consider from raising diesel component selectivity angle, cryogenic high pressure is conducive to F-T synthesis and produces diesel oil, so in actual production operating process, F-T synthesis is also between 200 DEG C to 250 DEG C.The effect tendency of reaction pressure to methanolysis and F-T synthesis two processes is also consistent, higher pressure is all favourable to the two, therefore, the catalyzer that these two processes use can be placed in respectively the two sections of same reactor, be namely together in series two reaction process the conversion realized from methyl alcohol to diesel oil in same reactor.
The technique of a kind of Methanol diesel oil provided by the invention comprises following several unit: turnover material-heat-exchanging unit E101, heating raw materials unit E102, reaction member R001, cooling unit E103, gas-liquid separation unit EF104.By these unit, first methanolysis is generated synthetic gas, and then by F-T synthesis, synthetic gas highly selective is converted into the diesel component being rich in straight chain hydrocarbon.
The technical process of a kind of Methanol diesel oil provided by the invention as shown in Figure 1, the methanol feedstock of liquid passes in and out material-heat-exchanging unit through E101() time, by from R001(reaction member) in the product heats that flows out, and then through E102(heating raw materials unit) be heated to temperature of reaction after enter R001(reaction member), first by the carbinol resolving catalyst bed I of the epimere of R001, then by the fischer-tropsch synthetic catalyst bed II of hypomere, flow out from R001, material-heat-exchanging unit is passed in and out through E101() time, after methanol feeding logistics cooling, again by E103(cooling unit) continue cooling after, enter EF104(gas-liquid separation unit), gas-liquid two-phase product enters downstream units after realizing separation.
Utilize the technique of a kind of Methanol diesel oil provided by the invention, in the relatively oversaturated situation in ammonia from coal market, the methanol conversion of a part can be become diesel oil fuel, not only efficiently utilize existing resource, but also provide fuel oil source of high quality and at a reasonable price to national society.
Accompanying drawing explanation
Fig. 1 is the process flow diagram (dotted line is heat transferring medium) of a kind of Methanol diesel oil provided by the invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further detailed.
The following examples only for explaining explanation the present invention in detail, and limit the scope of the invention never in any form.
Embodiment 1
Methanol feeding enters R001 after the heating of E101 and E102, and what load in the beds I of R001 epimere is the methanol cracking catalyst of Cu-Zn-Al system, and bed I upper end temperature is 285 DEG C; What load in R001 lower section catalyst bed II is the fischer-tropsch synthetic catalyst of Co system, and the temperature of bed II upper end is 255 DEG C.The product flowed out from R001 reactor, after the cooling of E101 and E103, is divided into gas-liquid two-phase in EF104, flows into downstream units respectively.
Claims (3)
1. the technique of a Methanol diesel oil, this technique comprises turnover material-heat-exchanging unit (E101), heating raw materials unit (E102), reaction member (R001), cooling unit (E103), gas-liquid separation unit (EF104), is characterized in that first utilizing methanolysis to produce synthetic gas, by F-T synthesis, Synthetic holography is become the high-quality diesel oil being rich in straight chain hydrocarbon again, and these two processes are carried out in same reactor.
2. the technique of a kind of Methanol diesel oil according to claim 1, it is characterized in that in turnover material-heat-exchanging unit (E101), cold medium is liquid methanol feedstock, thermal medium is the product flowed out from reaction member (R001).
3. the technique of a kind of Methanol diesel oil according to claim 1, it is characterized in that reaction member (R001) is two sections of fixed-bed reactor, two sections beds is set in this reactor, what load in epimere beds is carbinol resolving catalyst, and what load in hypomere bed is fischer-tropsch synthetic catalyst.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410416571.3A CN104152169B (en) | 2014-08-22 | 2014-08-22 | A kind of technique of Methanol diesel oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410416571.3A CN104152169B (en) | 2014-08-22 | 2014-08-22 | A kind of technique of Methanol diesel oil |
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| Publication Number | Publication Date |
|---|---|
| CN104152169A CN104152169A (en) | 2014-11-19 |
| CN104152169B true CN104152169B (en) | 2016-02-10 |
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| CN201410416571.3A Expired - Fee Related CN104152169B (en) | 2014-08-22 | 2014-08-22 | A kind of technique of Methanol diesel oil |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1417291A (en) * | 2001-11-05 | 2003-05-14 | 中国科学院大连化学物理研究所 | Technological process of preparing diesel oil fraction selectively with Fischer-tropsch synthetic gas |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8137531B2 (en) * | 2003-11-05 | 2012-03-20 | Chevron U.S.A. Inc. | Integrated process for the production of lubricating base oils and liquid fuels from Fischer-Tropsch materials using split feed hydroprocessing |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1417291A (en) * | 2001-11-05 | 2003-05-14 | 中国科学院大连化学物理研究所 | Technological process of preparing diesel oil fraction selectively with Fischer-tropsch synthetic gas |
Non-Patent Citations (1)
| Title |
|---|
| 费托合成CeO2助Co/SiO2催化剂的失活;代小平等;《催化学报》;20071231;第1047页-第1050页 * |
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Inventor after: Zhao Jinling Inventor after: Wang Hongming Inventor after: Wang Anqiao Inventor before: Zhao Jinling Inventor before: Wang Hongming |
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