CN201598266U

CN201598266U - Coal tar hydrogenation reactor

Info

Publication number: CN201598266U
Application number: CN2009203175892U
Authority: CN
Inventors: 高宏坤
Original assignee: CHANGLING PETRO CHEMICAL ENGINEERING DESIGN Co Ltd
Current assignee: CHANGLING PETRO CHEMICAL ENGINEERING DESIGN Co Ltd
Priority date: 2009-12-16
Filing date: 2009-12-16
Publication date: 2010-10-06
Anticipated expiration: 2019-12-16

Abstract

The utility model relates to a coal tar hydrogenation reactor, which comprises a reactor casing, an inlet and an outlet, wherein the inlet and the outlet are arranged at two ends of the reactor casing. The reactor is characterized in that an inlet diffuser, distribution discs, catalyst bed layers, a catalyst supporting part, hydrogen cooling pipes, hydrogen cooling discs and an outlet collector are arranged inside the reactor casing, fixed on a supporting ring on the inner wall of the reactor or fixed inside the reactor via fastening parts or in a welding form, and arrayed in regular arrangement, wherein the inlet diffuser is disposed at the inlet of the reactor, the distribution discs are mounted on each catalyst bed layer, one hydrogen cooling pipe and one hydrogen cooling disc are arranged between each two catalyst bed layers, and the outlet collector is arranged at the outlet of the reactor. Coal tar entering from the upper portion of the reactor sufficiently reacts with hydrogen via the catalyst bed layers under the operating condition of high temperature and high pressure, qualified product oil is produced with high efficiency, application effect is good, medium distribution is uniform, and the coal tar and cool hydrogen are mixed sufficiently.

Description

The coal tar hydrogenating reactor

Technical field

The utility model relates to coal tar hydrogenating unit, refers in particular to utilize coal tar hydrogenation in reactor, by the catalyst reaction required coal tar hydrogenating reactor of oil that manufactures a finished product.

Background technology

At present, coal and relevant industries thereof produce a large amount of byproduct coal tar, owing to contain a large amount of sulphur and other impurity in the coal tar, domestic modal way is with the coal tar burning that acts as a fuel, and has caused the loss of environmental pollution and economic benefit like this.

Summary of the invention

The purpose of this utility model is improved, is innovated at shortcoming that exists in the background technology and problem, provides a kind of reaction effect good coal tar hydrogenating reactor.

The technical solution of the utility model is a kind of reactor that comprises reactor shell and be arranged on the import and the outlet at reactor shell two ends of structure, is characterized in:

Be provided with inlet diffuser, distribution plate, beds, catalyst support member, cold hydrogen tube, cold hydrogen dish and exit collector in the reactor shell, above inner member all is fixed on the supporting cup of reactor wall, or be fixed in the reactor by the form of fastening piece or welding, and arrange array by rule, wherein:

Inlet diffuser is arranged on the Reactor inlet place, distribution plate be installed in each beds above, cold hydrogen tube and cold hydrogen dish are arranged between per two beds, exit collector is arranged on reactor exit.

The utility model has following advantage and beneficial effect:

The utility model makes coal tar be entered by reactor top, pass through beds, under the operational condition of High Temperature High Pressure, fully react with hydrogen as far as possible, because this reaction is an exothermic process, add a certain amount of hydrogen by the novel cold hydrogen dish of intermediary and reduce temperature of charge, satisfy the reaction requirement of next beds, guarantee to react and carry out the processed oil that high efficiency generation is qualified smoothly.The utility model effect is better, the medium distributed uniform, and coal tar mixes fully with cold hydrogen.

Description of drawings

Fig. 1 is the utility model one-piece construction synoptic diagram

Fig. 2 is the utility model part-structure synoptic diagram one

Fig. 3 is the utility model part-structure synoptic diagram two

Fig. 4 is the utility model inlet diffuser structural representation

Fig. 5 is the utility model dispensing arrangement synoptic diagram

Fig. 6 is the utility model exit collector structural representation

Fig. 7 is the cold hydrogen dish of a utility model structural representation

Embodiment

By Fig. 1 to 7 as can be known, the utility model comprises reactor shell 1 and is arranged on the import and the outlet at reactor shell 1 two ends, is characterized in:

Be provided with inlet diffuser 2, distribution plate 3, beds 4, catalyst support member 5, cold hydrogen tube 6, cold hydrogen dish 7 and exit collector 8 in the reactor shell 1, above inner member all is fixed on the supporting cup of reactor wall, or be fixed in the reactor by the form of fastening piece or welding, and arrange array by rule, wherein:

Inlet diffuser 2 is arranged on the Reactor inlet place, distribution plate 3 be installed in each beds 4 above, cold hydrogen tube 6 and cold hydrogen dish 7 are arranged between per two beds 4, exit collector 8 is arranged on reactor exit.

Inlet diffuser 2 described in the utility model is double-layer porous plate structure, and the cone-shaped body 20 of a promotion reaction medium rectification is established in its inside, and cone-shaped body 20 connects the orifice plate 9 of two-layer diffusion reaction medium.Be provided with divider 10 uniformly on the described distribution plate 3, divider 10 is made up of upflow tube 11 and outer cover 12, and outer cover 12 is arranged on the top of upflow tube 11, and and upflow tube 11 between form the reaction medium circulation passage.It is in aggregates that described cold hydrogen dish 7 connects assembly unit by the upper, middle and lower-ranking plank frame, and wherein: the upper strata is that small piece plate is spliced into a monoblock throttle plate 13 by fastening piece, has symmetric two throttle orifices 14 on the throttle plate 13; Eddy flow passage 15 is set between upper strata and the la m, and eddy flow passage 15 is left and right two groups, and eddy flow passage 15 connects with the throttle orifice 14 of upper strata throttle plate 13; Described la m middle part also has a centre hole 16 that connects with lower plywood; Described lower plywood is a distributing disc 17, has through hole on the distributing disc 17 uniformly.Described catalyst support member 5 comprises T type beam, grid and silk screen, and wherein T type girder span is in reactor, and the top is the sharpening shape, adopts the plate welding structure to make.Described exit collector 8 is fixed by bolts on the end socket mounting block, it is made up of collector cylindrical shell 18 and blind plate 19, wherein have manhole on the blind plate 19, have strip through-hole on the cylindrical shell 18, with the silk screen wrapping, reaction medium enters in the exit collector 8 by circular port or bar hole after silk screen filter again in the outside.

Each inner member principle of work of the utility model:

Inlet diffuser: reaction medium is after the rectification of upper taper body, and throttling, the impact effect through hole on the two-layer orifice plate is diffused on the whole reactor cross section, promotes gas-liquid phase medium thorough mixing, to reach the purpose of refining reaction.

Distribution plate: each reactor has a plurality of distribution plates, be installed in respectively each beds above.Its main effect is to make reaction mass energy uniform distribution on following one deck beds, and realization fully contacts with catalyzer, improves flow state, so that bring into play the effect of catalyzer better.A plurality of dividers are arranged, the similar bubble cap tray of its profile on every layer of distribution plate.The gas-liquid two-phase medium at first is an also stream from top to bottom, and liquid phase drops on the dish, and gas phase turns back 180; And by outer cover and overflow tube lane.Therefore locate circulation area and dwindle suddenly, the corresponding increase of gas speed, liquid phase is taken the admission passage from coiling to be sucked with shaped liquid film, the intense mixing stream of entrained liquid in passage, occurs, cause liquid crushing, and upwards turbulent along passage, until the top, mixed flow sharply overturns 180.After enter inner cover and overflow tube lane, circulation area is littler herein, has further strengthened gas phase velocity, and gas-liquid is further mixed mutually, collides then on the bocca of bottom, liquid phase is by strong broken, expands suddenly again in the exit to enlarge and evenly sprayed.This structure strengthens gas phase velocity by progressively reducing channel cross-sectional flow area, and gas-liquid two-phase is acutely mixed, and produces a desired effect.

Cold hydrogen dish: it is the place that the caloric response thing carries out thermal exchange in the hydrogenator, its effect is that the thermal response thing that upper bed layer is flow down mixes fully with the cold hydrogen that is injected by cold hydrogen tube, to reduce temperature of charge, satisfy the reaction requirement of next beds, guarantee to react and carry out smoothly, typical several structure formation is arranged.Liquid Flow situation in the cold hydrogen dish: the biphase gas and liquid flow that flows down from top is before entering throttle orifice, major part accumulates on the liquid collecting plate, form a thick layer of liquid, when cold hydrogen sprays in cold hydrogen tube, consumingly the liquid layer on the liquid collecting plate is dispelled, part liquid along continuous straight runs is pushed barrel to, plays the premix effect.Gas-liquid is dashed to the eddy flow channel base plate after throttle orifice penetrates, and the liquid disturbance is reinforced, and has produced to splash and vortex, enters then in the eddy flow passage, produces eddy flow, has prolonged mixing time.In eddy flow, mix, enter interstitial hole then, flow on the distributing disc, gas-liquid is further contacted, reach the purpose of thermal exchange.The distribution hole that last gas-liquid communicated on the distributing disc is distributed down.

Catalyst support member: its T type beam adopts the plate welding structure, and the T type back portion in reactor fines away, so that its sectional area that influences material stream passed reduces to minimum.

Exit collector: reaction product behind the Stainless Steel Wire net filtration, enters in the collector by bar hole or circular hole earlier again, reaches the purpose of collection.

The utility model shell adopts stainless steel or base material Cr-Mo steel inner wall overlaying stainless steel, and all the other internals all adopt stainless steel.

Embodiment described in the utility model only is the description that preferred implementation of the present utility model is carried out; be not that the utility model design and scope are limited; under the prerequisite that does not break away from the utility model design philosophy; engineering technical personnel make the technical solution of the utility model in this area various modification and improvement; all should fall into protection domain of the present utility model; the technology contents that the utility model is asked for protection all is documented in claims.

Claims

1. coal tar hydrogenating reactor comprises reactor shell (1) and is arranged on the import and the outlet at reactor shell (1) two ends, it is characterized in that:

Be provided with inlet diffuser (2), distribution plate (3), beds (4), catalyst support member (5), cold hydrogen tube (6), cold hydrogen dish (7) and exit collector (8) in the reactor shell (1), above inner member all is fixed on the supporting cup of reactor wall, or be fixed in the reactor by the form of fastening piece or welding, and arrange array by rule, wherein:

Inlet diffuser (2) is arranged on the Reactor inlet place, distribution plate (3) be installed in each beds (4) above, cold hydrogen tube (6) and cold hydrogen dish (7) are arranged between per two beds (4), and exit collector (8) is arranged on reactor exit.

2. coal tar hydrogenating reactor according to claim 1, it is characterized in that described inlet diffuser (2) is double-layer porous plate structure, the cone-shaped body (20) of a promotion reaction medium rectification is established in its inside, and cone-shaped body (20) connects the orifice plate (9) of two-layer diffusion reaction medium.

3. coal tar hydrogenating reactor according to claim 1, it is characterized in that being provided with uniformly on the described distribution plate (3) divider (10), divider (10) is made up of upflow tube (11) and outer cover (12), outer cover (12) is arranged on the top of upflow tube (11), and and upflow tube (11) between form the reaction medium circulation passage.

4. coal tar hydrogenating reactor according to claim 1, it is in aggregates to it is characterized in that described cold hydrogen dish (7) connects assembly unit by the upper, middle and lower-ranking plank frame, wherein: the upper strata is that small piece plate is spliced into a monoblock throttle plate (13) by fastening piece, has symmetric two throttle orifices (14) on the throttle plate (13); Eddy flow passage (15) is set between upper strata and the la m, and eddy flow passage (15) is left and right two groups, and eddy flow passage (15) connects with the throttle orifice (14) of upper strata throttle plate (13); Described la m middle part also has a centre hole (16) that connects with lower plywood; Described lower plywood is distributing disc (17), and distributing disc has through hole on (17) uniformly.

5. coal tar hydrogenating reactor according to claim 1 is characterized in that described catalyst support member (5) comprises T type beam, grid and silk screen, and wherein T type girder span is in reactor, and the top is the sharpening shape, adopts the plate welding structure to make.

6. coal tar hydrogenating reactor according to claim 1, it is characterized in that described exit collector (8) is fixed by bolts on the end socket mounting block, it is made up of collector cylindrical shell (18) and blind plate (19), wherein have manhole on the blind plate (19), cylindrical shell has strip through-hole on (18), with the silk screen wrapping, reaction medium enters in the exit collector (8) by circular port or bar hole after silk screen filter again in the outside.