CN203474728U - Regeneration device for gasification of coke on spent catalyst - Google Patents
Regeneration device for gasification of coke on spent catalyst Download PDFInfo
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- CN203474728U CN203474728U CN201320534878.4U CN201320534878U CN203474728U CN 203474728 U CN203474728 U CN 203474728U CN 201320534878 U CN201320534878 U CN 201320534878U CN 203474728 U CN203474728 U CN 203474728U
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Abstract
A regeneration device for gasification of coke on a spent catalyst is disclosed. A gasifier I and a gasifier II which are connected in series are vertically arranged, a bottom outlet (11) of the gasifier I is arranged above a half-regeneration agent inlet (5) of the gasifier II, a spent catalyst inlet (1) is arranged on the upper part of a gasifier I cylinder (13), a gasifying agent inlet (2) is arranged on the lower part of the gasifier I cylinder (13), a gasification gas outlet (9) is arranged on an upper sealed head (15), the half-regeneration agent inlet (5) is arranged on the upper part of a gasifier II cylinder (18), a gasifying agent inlet (6) is arranged on the lower part of the gasifier II cylinder (18), a gasification gas outlet (10) is arranged on an upper sealed head (20), and a regeneration agent outlet (7) is arranged on a lower sealed head (16). The regeneration device can avoid the synthesis gas secondary reaction caused by excess oxygen, play the role of catalytic gasification of metals supported on a catalyst, mitigate temperature of gasification, and improve the synthesis gas yield.
Description
Technical field
The utility model relates to a kind of reclaim equiment, more particularly, belongs to a kind of reclaim equiment for coke vaporizing system synthetic gas on spent agent.
Background technology
Crude oil heaviness, in poor quality increasingly within the scope of our times, its feature shows as high-sulfur, peracid, high metal, high carbon residue, conventional crude complete processing is subject to the very big restriction of stock oil in poor quality, therefore and the product of processing generally need to could meet service requirements by hydrotreatment, develop new heavy oil upgrading technique and cheap process for making hydrogen becomes an urgent demand.
In heavy oil upgrading process, on catalyzer, can deposit a large amount of coke, utilize this part coke gasification production of synthetic gas to there is good prospect, but the gasification of coke is temperature required higher, when gasification temperature is lower, object product is subject to the double influence of chemical reaction rate and chemical equilibrium, while utilizing oxygen-containing gas gasification, coke is oxidation heat liberation first, for gasification provides heat, gasification is comparatively rapid, but the easy Quick Oxidation of CO generating is CO
2thereby reduce synthetic gas productive rate, the more difficult control of Hypoxic habitats; Utilize water vapour and CO
2during gasification, endothermic heat of reaction and speed are slower, and the temperature that Quick-gasifying needs is higher, and thermal and hydric environment can endanger the recycle value of catalyzer, but to CO and H
2selectivity higher, and under the effect of gasifying catalyst, can relax gasification temperature and improve gasification rate.
CN201678646U proposes a kind of vapourizing furnace containing carbonaceous material gasification, and in this vapourizing furnace, oxygen-containing gas is made fluidizing medium, contacts and is advanced into different gasification zones, for the also sectional charging of carbon containing material character from carbonaceous material.
CN202700507U proposes a kind of revivifier for coke preparing synthetic gas on spent agent, and in this revivifier, the descending and up oxygen-containing gas reaction of spent agent enters different gasification zones, and the catalyzer completely of finally regenerating leaves at oxidation panel.
Utility model content
The purpose of this utility model is to provide the reclaim equiment of coke gasification production of synthetic gas on a kind of spent agent, avoid oxygen surplus in oxygenousization process to make synthetic gas further be oxidized generation secondary reaction, the katalysis of performance gasification reactivity component, coke on spent agent is made full use of, relax gasification temperature, improve synthesis gas yield.
Reclaim equiment for coke gasification on spent agent provided by the utility model, vertically arranges gasifier I and the gasifier II of two series connection, and wherein the outlet at bottom 11 of gasifier I, above the half regenerator entrance 5 of gasifier II, and connects by pipeline 4.
Gasifier I is vertically followed successively by bottom cone 12, cylindrical shell 13, top cone 14, top end socket 15 from bottom to up, on the top of cylindrical shell 13, spent agent entrance 1 is set, in the bottom of cylindrical shell 13, gasification agent inlet 2 is set, at top end socket 15, gasification gas outlet 9 is set;
Gasifier II is vertically followed successively by bottom head 16, bottom cone 17, cylindrical shell 18, top cone 19, top end socket 20 from bottom to up, half regenerator entrance 5 is set on the top of cylindrical shell 18, in the bottom of cylindrical shell 18, gasification agent inlet 6 is set, at top end socket 20, gasification gas outlet 10 is set, at bottom head 16, regenerator outlet 7 is set.
The vaporized chemical that coke gasification adopts is conventionally pure oxygen, oxygen rich gas, air, carbonic acid gas, water vapour etc., and wherein the speed of reaction of coke and oxygen is the fastest, and gasification can be carried out at lower temperature, but the more difficult control of oxygen deprivation condition; And the speed of reaction of water vapour and carbonic acid gas and coke is slower, and be thermo-negative reaction, need comparatively high temps, generally use basic metal, alkaline-earth metal or transition metal salt can improve synthetic gas productive rate as gasifying catalyst.
The reclaim equiment that the utility model provides is gasifier I and the gasifier II of the vertical setting of series connection, spent agent entrance 1 enters gasifier I, oxygenous agent autopneumatolysis agent entrance 2 enters gasifier I, after being uniformly distributed, distributing disc 3 fully contacts generation oxidizing reaction with descending spent agent, whereabouts along with spent agent, gasifier I is divided into oxygen deprivation gasification zone and oxygen-enriched combusting district from top to bottom, until spent agent falls to the gasification agent inlet of oxygenous agent, stop oxidizing reaction below 2, half regenerator enters gasifier II from half regenerator entrance 5 after pipeline 4.No oxygen agent is entered gasifier II after grid distributor 22 is uniformly distributed by gasification agent inlet 6, contact with descending half regenerator, and on half regenerator, residual coke carries out quick anaerobic catalytic gasification in gasifier II.The catalyzer completely of regenerating is discharged from regenerator outlet 7.The synthetic gas secondary reaction that this reclaim equiment can avoid oxygen surplus to cause, and can bring into play the catalytic gasification effect of loaded metal on catalyzer, relax gasification temperature, improve synthesis gas yield.
The diameter of described gasifier I cylindrical shell is less than the diameter of gasifier II cylindrical shell.Preferably gasifier I cylindrical shell is (0.2～0.6) with the diameter ratio of gasifier II cylindrical shell: 1.
The outlet at bottom 11 of gasifier I is 0.2～1.0m above the half regenerator entrance 5 of gasifier II.
Described gasifier I, the height of bottom cone 12 accounts for 10%～20% of gasifier I whole height, the height of top cone 14 accounts for 10%～20% of gasifier I whole height, the height of top end socket 15 accounts for 5%～15% of gasifier I whole height, the height of cylindrical shell 13 accounts for 50%～70% of gasifier I whole height, and each position height ratio sum is 100%.
Described gasifier II, the height of bottom cone 17 accounts for 10%～20% of gasifier II whole height, the height of bottom head 16 accounts for 5%～15% of gasifier II whole height, the height of top cone 19 accounts for 10%～20% of gasifier II whole height, the height of top end socket 20 accounts for 5%～15% of gasifier II whole height, the height of cylindrical shell 18 accounts for 50%～70% of gasifier II whole height, and each position height ratio sum is 100%.
Half regenerator entrance 5 is 50%～75% of gasifier II cylindrical shell 18 height with the distance of regenerator outlet 7.
Gasification agent inlet 2 is 50%～80% of gasifier I cylindrical shell 13 height with the distance of spent agent entrance 1.
In gasifier I, gasification agent inlet 2 is 0.1～0.4m with the distance of cylindrical shell 13 bottoms, and in gasifier II, gasification agent inlet 6 is 0.1～0.3m with cylindrical shell 18 distances from bottom.
The taper base angle of gasifier I bottom cone 12 is 20～45 degree, and the taper base angle β of top cone 14 is 45～75 degree; The taper base angle of gasifier II bottom cone 17 ' be 20～45 degree, the taper base angle β ' of top cone 19 is 45～75 degree.
1～4 cyclonic separator 8 is set gasifier I top end socket 15 is interior; 1～4 cyclonic separator 21 is set gasifier II top end socket 20 is interior.
In gasifier I cylindrical shell 13, the top of gasification agent inlet 2 arranges gas distribution dish 3, and in gasifier II cylindrical shell 18, the top of gasification agent inlet 6 arranges gas distribution dish 22.
Between the half regenerator entrance 5 of the outlet at bottom 11 of gasifier I and gasifier II, heating installation is set.
The reclaim equiment that the utility model provides can be for the catalyzer gasification regeneration of coke content 1.5～8 % by weight in heavy oil upgrading process, be mainly used in existing heavy oil contact cracking spent agent gasification regeneration and heavy oil fluid catalytic cracking spent agent gasification regeneration, also can be for other solid carbon particle material as the gasification production of synthetic gas of fine coal, refinery coke, biomass etc.
The applicable catalyzer of this reclaim equiment be selected from amorphous aluminum silicide, kaolin, carclazyte, aluminum oxide, quartz sand, rectorite leng etc. one or more, and load gasification reactivity component basic metal, alkaline-earth metal or transistion metal compound one or more, the preferred potassium of basic metal, the preferred calcium of alkaline-earth metal, the preferred iron of transition metal.
The coke content entering on half regenerator of gasifier II is 0.3～2.0 % by weight; On regenerator after gasifier II has gasified, coke content is less than 0.1 % by weight.
In this reclaim equiment gasifier I, oxygenous agent is the combination of air or oxygen and water vapour, generation gas, CO that the no oxygen agent of using in gasifier II is gasifier I
2, water vapour one or more combination.
The reclaim equiment that the utility model provides, in gasifier I, most of coke on spent agent Quick-gasifying under oxygen deprivation condition, and make coke layer attenuation, in gasifier II, coke on half regenerator carries out anaerobic gasification, and catalyst surface gasification reactivity component enters anaerobic catalytic gasification in the time of can bringing into play katalysis preferably.The synthetic gas that this reclaim equiment can avoid oxygen surplus to cause is further oxidized, and can give full play to the catalytic gasification effect of loaded metal on catalyzer, relaxes gasification temperature, improves synthesis gas yield.
Accompanying drawing explanation
Fig. 1 is the reclaim equiment schematic diagram for coke gasification on spent agent provided by the utility model.
Embodiment
Below in conjunction with accompanying drawing, describe detailed structure feature of the present utility model in detail, but accompanying drawing does not limit the utility model.
As shown in Figure 1, described reclaim equiment comprises gasifier I and the gasifier II of two series connection of vertical setting, gasifier I is vertically followed successively by bottom cone 12, cylindrical shell 13, top cone 14, top end socket 15 from bottom to up, on the top of cylindrical shell 13, spent agent entrance 1 is set, in the bottom of cylindrical shell 13, gasification agent inlet 2 is set, 1～4 cyclonic separator 8 is set gasifier I top end socket 15 is interior, cyclonic separator is connecting gasification gas outlet 9.The top of gasification agent inlet 2 arranges gas distribution dish 3.Between the half regenerator entrance 5 of the outlet at bottom 11 of gasifier I and gasifier II, by pipeline 4, connect.Gasifier II is vertically followed successively by bottom head 16, bottom cone 17, cylindrical shell 18, top cone 19, top end socket 20 from bottom to up, half regenerator entrance 5 is set on the top of cylindrical shell 18, in the bottom of cylindrical shell 18, gasification agent inlet 6 is set, the top of gasification agent inlet 6 arranges gas distribution dish 22,1～4 cyclonic separator 21 is set gasifier II top end socket 20 is interior, cyclonic separator is connecting gasification gas outlet 10, and regenerator outlet 7 is set in bottom head 16 bottoms.
With embodiment, further illustrate effect of the present utility model below, but therefore do not limit the utility model.
Embodiment
The present embodiment adopts reclaim equiment shown in Fig. 1, gasifier I total height is 3.8m, diameter is 0.4m, and bottom cone 12 is highly 0.57m, and taper base angle is 35 degree, top cone 14 is highly 0.38m, taper base angle β is 45 degree, and top end socket 15 is highly 0.19m, and cylindrical shell 13 is highly 2.66m, gasification agent inlet 2 is 1.82m with spent agent entrance 1 vertical range, and gasification agent inlet 2 is 0.3m apart from cylindrical shell 13 distances from bottom; The outlet at bottom 11 of gasifier I is 0.5m above the half regenerator entrance 5 of gasifier II; Gasifier II is highly 2.5m, diameter is 1.6m, bottom cone 17 is highly 0.25m, taper base angle ' be 30 degree, bottom head 16 is highly 0.13m, top cone 19 is highly 0.25m, taper base angle β ' is 45 degree, and top end socket height is 0.18m, and cylindrical shell 18 is highly 1.69m, vertical range between gasification agent inlet 6 and half regenerator entrance 5 is 1.19m, and gasification agent inlet 6 is 0.2m apart from cylindrical shell 18 distances from bottom.
Selecting heavy oil contact cracking catalyst is the gasification reactivity component of load potassium, calcium on amorphous alumina, with live catalyst weighing scale, Element Potassium content 2.0%, calcium contents 1.5%, by heavy oil, contact cracking and obtain spent agent, mainly gasify regenerative operation condition and products distribution of spent agent listed in table 1, and the vaporized chemical in gasifier II is selected the gasification gas in 80 (volume) % water vapour and gasifier I.As shown in Table 1, the reclaim equiment that adopts the utility model to provide, gained synthetic gas volume fraction is 70.35%, residual 0.1 % by weight that is less than of coke on regenerator.
Table 1 embodiment equipment coke gasification operational condition and product composition
Claims (13)
1. the reclaim equiment for coke gasification on spent agent, it is characterized in that, gasifier I and the gasifier II of two series connection is vertically set, and wherein the outlet at bottom of gasifier I (11) is in the top of the half regenerator entrance (5) of gasifier II, and connect by pipeline (4)
Gasifier I is vertically followed successively by bottom cone (12), cylindrical shell (13), top cone (14), top end socket (15) from bottom to up, on the top of cylindrical shell (13), spent agent entrance (1) is set, in the bottom of cylindrical shell (13), gasification agent inlet (2) is set, at top end socket (15), gasification gas outlet (9) is set;
Gasifier II is vertically followed successively by bottom head (16), bottom cone (17), cylindrical shell (18), top cone (19), top end socket (20) from bottom to up, half regenerator entrance (5) is set on the top of cylindrical shell (18), in the bottom of cylindrical shell (18), gasification agent inlet (6) is set, at top end socket (20), gasification gas outlet (10) is set, at bottom head (16), regenerator outlet (7) is set.
2. according to the reclaim equiment of claim 1, it is characterized in that, the diameter of gasifier I cylindrical shell is less than the diameter of gasifier II cylindrical shell.
3. according to the reclaim equiment of claim 1, it is characterized in that, gasifier I cylindrical shell is (0.2～0.6) with the diameter ratio of gasifier II cylindrical shell: 1.
4. according to the reclaim equiment of claim 1, it is characterized in that, the outlet at bottom of gasifier I (11) is at the top 0.2～1.0m of the half regenerator entrance (5) of gasifier II.
5. according to the reclaim equiment of claim 1, it is characterized in that, described gasifier I, the height of bottom cone (12) accounts for 10%～20% of gasifier I whole height, the height of top cone (14) accounts for 10%～20% of gasifier I whole height, the height of top end socket (15) accounts for 5%～15% of gasifier I whole height, and the height of cylindrical shell (13) accounts for 50%～70% of gasifier I whole height, and each position height ratio sum is 100%.
6. according to the reclaim equiment of claim 1, it is characterized in that, described gasifier II, the height of bottom cone (17) accounts for 10%～20% of gasifier II whole height, the height of bottom head (16) accounts for 5%～15% of gasifier II whole height, the height of top cone (19) accounts for 10%～20% of gasifier II whole height, the height of top end socket (20) accounts for 5%～15% of gasifier II whole height, the height of cylindrical shell (18) accounts for 50%～70% of gasifier II whole height, and each position height ratio sum is 100%.
7. according to the reclaim equiment of claim 1, it is characterized in that, half regenerator entrance (5) is 50%～75% of gasifier II cylindrical shell (18) height with the distance of gasification agent inlet (6).
8. according to the reclaim equiment of claim 1, it is characterized in that, gasification agent inlet (2) is 50%～80% of gasifier I cylindrical shell (13) height with the distance of spent agent entrance (1).
9. according to the reclaim equiment of claim 1, it is characterized in that, gasification agent inlet in gasifier I (2) is 0.1～0.4m with the distance of cylindrical shell (13) bottom, and gasification agent inlet in gasifier II (6) is 0.1～0.3m with the distance of cylindrical shell (18) bottom.
10. according to the reclaim equiment of claim 1, it is characterized in that, the taper base angle of gasifier I bottom cone (12) is 20～45 degree, and the taper base angle β of top cone (14) is 45～75 degree; The taper base angle of gasifier II bottom cone (17) ' be 20～45 degree, the taper base angle β ' of top cone (19) is 45～75 degree.
11. according to the reclaim equiment of claim 1, it is characterized in that, 1～4 cyclonic separator (8) is set in gasifier I top end socket (15); 1～4 cyclonic separator (21) is set in gasifier II top end socket (20).
12. according to the reclaim equiment of claim 1, it is characterized in that, in gasifier I cylindrical shell (13), the top of gasification agent inlet (2) arranges gas distribution dish (3), and in gasifier II cylindrical shell (18), the top of gasification agent inlet (6) arranges gas distribution dish (22).
13. according to the reclaim equiment of claim 1, it is characterized in that, between the half regenerator entrance (5) of the outlet at bottom of gasifier I (11) and gasifier II, heating installation is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320534878.4U CN203474728U (en) | 2013-08-30 | 2013-08-30 | Regeneration device for gasification of coke on spent catalyst |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320534878.4U CN203474728U (en) | 2013-08-30 | 2013-08-30 | Regeneration device for gasification of coke on spent catalyst |
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| CN203474728U true CN203474728U (en) | 2014-03-12 |
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| CN201320534878.4U Expired - Lifetime CN203474728U (en) | 2013-08-30 | 2013-08-30 | Regeneration device for gasification of coke on spent catalyst |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104371756A (en) * | 2014-11-07 | 2015-02-25 | 中国石油大学(北京) | Method for simultaneously treating inferior heavy oil and producing synthetic gas |
| CN105713676A (en) * | 2014-12-03 | 2016-06-29 | 中国石油天然气股份有限公司 | Coke-containing solid particle gasification method and device |
-
2013
- 2013-08-30 CN CN201320534878.4U patent/CN203474728U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104371756A (en) * | 2014-11-07 | 2015-02-25 | 中国石油大学(北京) | Method for simultaneously treating inferior heavy oil and producing synthetic gas |
| CN105713676A (en) * | 2014-12-03 | 2016-06-29 | 中国石油天然气股份有限公司 | Coke-containing solid particle gasification method and device |
| CN105713676B (en) * | 2014-12-03 | 2019-05-07 | 中国石油天然气股份有限公司 | Gasification process and device containing burnt solid particle |
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