CN203530237U - Coal liquefaction reactor - Google Patents
Coal liquefaction reactor Download PDFInfo
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- CN203530237U CN203530237U CN201320718564.XU CN201320718564U CN203530237U CN 203530237 U CN203530237 U CN 203530237U CN 201320718564 U CN201320718564 U CN 201320718564U CN 203530237 U CN203530237 U CN 203530237U
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- reactor
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- inlet pipe
- pipeline section
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Abstract
The utility model discloses a coal liquefaction reactor which comprises a circulating tube section and a straight tube section connected with the circulating tube section, wherein the circulating tube section consists of a reactor barrel body and a diversion barrel which are concentric with each other; the diversion barrel is arranged in the reactor barrel body; the straight tube section is arranged at the bottom of the circulating tube section; a slurry phase inlet tube is arranged at the bottom of the diversion barrel; a gas distributor with a gas inlet pipe is arranged at the bottom of the straight tube section. The coal liquefaction reactor is simple in structure and enables materials to be fully mixed and reacted, so that the reaction efficiency can be improved.
Description
Technical field
The utility model relates to DCL/Direct coal liquefaction and refining of petroleum field, in particular, relates to a kind of New type coal liquefying reactor.
Background technology
At present, on laboratory, lab scale or pilot scale for the reactor of DCL/Direct coal liquefaction normally tubular reactor, ebullated bed reactor or outer circulation suspended-bed reactor; Wherein, tubular reactor is a kind of elongated cylinder, there is no unnecessary object, in order to reach enough residence time, conventionally wants several reactors in series, and owing to being subject to the mobile restriction of fluid, industrial scale is little; Ebullated bed reactor is applicable to the highly active catalyzer of lower concentration high dispersive, has the restriction of catalyst loss and recycle pump critical operation condition; The coking problem that outer circulation suspension reactor exists equally recycle pump operational condition and caused by inner parts structure.
Previous patent has also proposed the liquefying reactor of various structural shapes, such as: Chinese patent CN2613694Y has proposed a kind of reactor, simple in structure, and reaction pressure is lower, reaction mechanism correspondingly should belong to fast pyrolysis process, the CO of reaction needed and CH
4, be not to be well suited for as payable DCL/Direct coal liquefaction reactor.Chinese patent CN2547391Y has proposed a kind of for mink cell focus processing floating bed hydrogenation reactor, discharging at the bottom of reactor top, built-in circulation guide shell structure, bottom feed tangentially, spiral, can prevent bottom feed coking and blocking, simultaneously, the setting of guide shell also can be accelerated its liquid-solid slurry and mix and heat transmission, but material reaction time in reactor is shorter.
Summary of the invention
The purpose of this utility model is to provide a kind of simple in structure, can make material fully mix, and improves the reactor of reaction efficiency.
For achieving the above object, the utility model adopts following technical scheme: a kind of reactor, comprise circulation pipeline section and coupled straight length, described circulation pipeline section is comprised of concentric reactor shell and guide shell, guide shell is placed in reactor shell inside, described straight length is located at circulation pipeline section bottom, and described guide shell bottom is provided with slurry phase materials inlet pipe, and straight length bottom is provided with gas distributor and reaction mass outlet at bottom.
Described slurry phase materials inlet pipe is provided with slurries shower nozzle or grout distribution device.
Described gas distributor comprises inlet pipe and be placed in the distribution pipe in inlet pipe, and described distribution pipe is connected with inlet pipe.
Described gas distributor can arrange at least one.
Circulation pipeline section top is provided with separated space, and the height of described separated space is the 10-50% of circulation section height, is preferably 25-35%.
The sectional area of described straight length is less than the sectional area of guide shell, and flow development length is the 20-70% of circulating pipe segment length, is preferably 30-45%.
The guide shell of described circulation pipeline section can be multistage guide shell.
Described guide shell is provided with hole.
The utlity model has following beneficial effect:
(1) reactor is introduced circulation pipeline section, can make respectively to mix mutually in reactor, prevents local temperature rise, effectively stops the generation of the phenomenons such as coking; In addition, straight length bottom is provided with reaction mass outlet at bottom, for the settlings such as Jiao who produces in reaction process and burnt attached body mineral substance, unconverted coal can take advantage of a situation and under, autoreaction material outlet at bottom is discharged with material, can prevent reactor plugs.
(2) the reserved gas-liquid separation in loop reactor top space, can make to react rear light material and gas delivery, leaves in advance system, makes heavier feeds continue to react in reactor.
(3) reactor bottom is provided with straight length, when increasing residence time of material, can continue to supplement hydrogenation to circulation pipeline section reacting rear material, makes reaction more complete.
(4) circulation section guide shell is set to multistage, or cuts bar hole or other shape perforates at stream guiding barrel, can slow down intensity of circulation, and in increase system, gas closes rate, also can alleviate back-mixing degree simultaneously.
Accompanying drawing explanation
Fig. 1 is example structure schematic diagram of the utility model;
Fig. 2 is another example structure schematic diagram of the utility model;
Fig. 3 is the guide shell structural representation in another embodiment of the utility model;
Fig. 4 is another example structure schematic diagram of the utility model;
Fig. 5 is the grout distribution device structural representation in Fig. 1 to Fig. 4;
Fig. 6 is the vertical view of Fig. 5.
In figure:
1, circulation pipeline section 2, straight length 3, reaction mass top exit 4, guide shell 5, reactor shell 6, slurry phase materials inlet pipe 7, inlet pipe 8, gas distributor 9, reaction mass outlet at bottom 10, distribution pipe 11, hole 12, grout distribution device 13, shower nozzle 14, separated space.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
As can be seen from Figure 1, the utility model DCL/Direct coal liquefaction reactor mainly comprises that circulation pipeline section 1 and straight length 2 form.Circulation pipeline section 1 is comprised of concentric reactor shell 5 and guide shell 4, and circulation pipeline section 1 is placed in the top of direct current section 2; Circulation pipeline section 1 is main reaction section, and straight length 2 is assisted reaction section; Straight length 2 length are short compared with circulation pipeline section 1 length, and straight length 2 length are about the 20-70% of circulation pipeline section 1 length, are preferably 30-45%; Straight length 2 sectional areas are less than the sectional area of guide shell 4, and straight length 2 bottoms are provided with the gas distributor 8 with inlet pipe 7, and gas distributor 8 comprises inlet pipe 7 and be placed in the distribution pipe 10 in inlet pipe 7, and distribution pipe 10 is connected with inlet pipe 7.Gas-liquid separation space 14 is left on the top of circulation pipeline section 1, and the 10-50% that it is highly about circulation pipeline section 1 height, is preferably 25-35%; Guide shell 4 bottoms of reactor loop pipeline section 1 are provided with slurry phase materials inlet pipe 6, and in the end of slurry phase materials inlet pipe 6, are provided with single shower nozzle 13 or with the grout distribution device 12 of cushioning pocket, the structure of grout distribution device 12 as shown in Figure 5 and Figure 6.
In addition, guide shell 4 can be one or more snippets, when one section of guide shell is set, can perforate 11 on guide shell, and shown in Fig. 3, on guide shell 4, have exactly a plurality of parallel bar holes 11; Guide shell 4 shown in Fig. 2 is comprised of multistage guide shell.Guide shell 4 becomes multistage or can slow down intensity of circulation to a certain extent in stack shell rise hole, increases intrasystem gas holdup, also can alleviate back-mixing degree simultaneously.
Shown in Fig. 4, be, in direct current section lower end, two gas distributors are set, can make straight length gas-to-liquid contact more abundant, be conducive to hydrogenation reaction.
Concrete reaction process is as follows: slurries are interior up from guide shell 4, arrive the separated space 14 at circulation cylinder top, material after partial reaction is isolated gas, light ends steam and partially liq from reaction mass top exit 3, leftover materials are carried portion gas descending continuation reaction along the outer annular space of guide shell 4 space secretly, when arriving bottom, part material continues to get back to guide shell 4 and participates in circulation, most of material arrival straight length of taking advantage of a situation, the live gas entering with straight length bottom carries out after counter current contact reaction, and autoreaction material outlet at bottom 9 is discharged outside reactor.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. a reactor, it is characterized in that, comprise circulation pipeline section and coupled straight length, described circulation pipeline section is comprised of concentric reactor shell and guide shell, guide shell is placed in reactor shell inside, described straight length is located at circulation pipeline section bottom, and described guide shell bottom is provided with slurry phase materials inlet pipe, and straight length bottom is provided with gas distributor and reaction mass outlet at bottom.
2. reactor according to claim 1, is characterized in that: described slurry phase materials inlet pipe is provided with slurries shower nozzle or grout distribution device.
3. reactor according to claim 1, is characterized in that: described gas distributor comprises inlet pipe and be placed in the distribution pipe in inlet pipe, and described distribution pipe is connected with inlet pipe.
4. reactor according to claim 3, is characterized in that: described gas distributor arranges at least one.
5. reactor according to claim 1, is characterized in that: circulation pipeline section top is provided with separated space, and the height of described separated space is the 10-50% of circulation section height.
6. reactor according to claim 5, is characterized in that: the height of described separated space is the 25-35% of circulation section height.
7. according to the reactor described in claim 5 or 6, it is characterized in that: the sectional area of described straight length is less than the sectional area of guide shell, flow development length is the 20-70% of circulating pipe segment length.
8. reactor according to claim 7, is characterized in that: described flow development length is the 30-45% of circulating pipe segment length.
9. reactor according to claim 1, is characterized in that: the guide shell of described circulation pipeline section is multistage guide shell.
10. reactor according to claim 1, is characterized in that: described guide shell is provided with hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320718564.XU CN203530237U (en) | 2013-11-15 | 2013-11-15 | Coal liquefaction reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320718564.XU CN203530237U (en) | 2013-11-15 | 2013-11-15 | Coal liquefaction reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203530237U true CN203530237U (en) | 2014-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320718564.XU Expired - Fee Related CN203530237U (en) | 2013-11-15 | 2013-11-15 | Coal liquefaction reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203530237U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104789253A (en) * | 2015-04-20 | 2015-07-22 | 神华集团有限责任公司 | Coal liquefaction reactor and coal liquefaction production system |
-
2013
- 2013-11-15 CN CN201320718564.XU patent/CN203530237U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104789253A (en) * | 2015-04-20 | 2015-07-22 | 神华集团有限责任公司 | Coal liquefaction reactor and coal liquefaction production system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140409 Termination date: 20141115 |
|
| EXPY | Termination of patent right or utility model |