CN106000241A - Cold hydrogen distribution pipe for hydrogenation reactor - Google Patents
Cold hydrogen distribution pipe for hydrogenation reactor Download PDFInfo
- Publication number
- CN106000241A CN106000241A CN201610455372.2A CN201610455372A CN106000241A CN 106000241 A CN106000241 A CN 106000241A CN 201610455372 A CN201610455372 A CN 201610455372A CN 106000241 A CN106000241 A CN 106000241A
- Authority
- CN
- China
- Prior art keywords
- cold hydrogen
- pipe
- distribution
- hydrogenation reactor
- distribution pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
- B01J8/04—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds the fluid passing successively through two or more beds
- B01J8/0496—Heating or cooling the reactor
-
- 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
- C10G49/00—Treatment of hydrocarbon oils, in the presence of hydrogen or hydrogen-generating compounds, not provided for in a single one of groups C10G45/02, C10G45/32, C10G45/44, C10G45/58 or C10G47/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00008—Controlling the process
- B01J2208/00017—Controlling the temperature
- B01J2208/00327—Controlling the temperature by direct heat exchange
- B01J2208/00336—Controlling the temperature by direct heat exchange adding a temperature modifying medium to the reactants
- B01J2208/00345—Cryogenic coolants
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
A cold hydrogen distribution pipe for a hydrogenation reactor comprises a feeding pipe connected with a cold hydrogen storage tank, a plurality of distribution branch pipes are arranged on the feeding pipe, and evenly-distributed columnar nozzles are arranged at the bottom of the feeding pipe and the bottoms of the distribution branch pipes. The cold hydrogen distribution pipe has the advantages of being reliable in structure and sufficient in mixing of hydrogen and reactant flow; branch type or annular design is adopted so that cold hydrogen can flow in the branch or circumferential direction and flow out of the nozzles at the bottoms of the distribution branch pipes. The cold hydrogen distribution pipe can well suppress material temperature drop nonuniformity caused by nonuniform distribution of cold hydrogen and prevent catalyst failures caused by local hot points, and has very good economic benefits and social benefits.
Description
Technical field
The present invention relates to a kind of hydrogenation reactor, especially relate to a kind of cold hydrogen for hydrogenation reactor and divide
Pipe arrangement.
Background technology
In recent years, owing to the demand of high-quality distillate is continuously increased by domestic market, environmental requirement is the tightest
Lattice, and the heaviness of crude oil, in poor quality, promote oil plant to be badly in need of expanding the production capacity of hydrogenation plant,
And be hydrocracked and be currently the technique that uniquely can be produced high-quality light ends oil by inferior distillate oil.Reaction
Device is the nucleus equipment of hydrocracking process.The beds of more than 2 it is typically provided with in reactor,
Hydrocracking reaction is that exothermic reaction exothermic heat of reaction is the most, and bed temperature rise is the highest.In order to make catalyst performance
Stable and equipment safety, the temperature rise of beds and reaction temperature must be effectively controlled.Generally exist
Cold hydrogen is injected between two beds.Cold hydrogen is sprayed by cold hydrogen distribution pipe and is carried out with material
Mixing.
If cold hydrogen divides PIPING DESIGN unreasonable, cold hydrogen can be caused and material mixability is low, cooling effect
The poorest, local may produce focus, causes catalyst failure, meeting cause the reaction of follow-up bed and continues
Impact.
Summary of the invention
It is an object of the invention to provide a kind of cold hydrogen for hydrogenation reactor and distribute pipe, to improve because of cold hydrogen
Point the unreasonable cold hydrogen caused of PIPING DESIGN is low with material mixability, cooling-down effect is poor, and local may
Produce focus, cause catalyst failure, affect the technical problems such as subsequent reactions.
The present invention mainly solves above-mentioned technical problem by following technical proposals: one is used for being hydrogenated with instead
Answer the cold hydrogen distribution pipe of device, including the feed pipe being connected with cold hydrogen-holder, feed pipe is provided with multiple
Equally distributed column nozzle it is provided with bottom dispensing branch, feed pipe and dispensing branch.
As preferably, described dispensing branch is dendriform or annular spread.
As preferably, bottom described cold hydrogen distribution pipe, it is provided with support beam.
The present invention has that structure is reliable, hydrogen mixes sufficient feature with reaction logistics, employing dendritic or
The design of annular can make cold hydrogen flow by tree-shaped or circumferencial direction, and the nozzle bottom distribution pipe flows out.
This invention cold hydrogen distribution pipe can well suppress the material temperature drop that causes because of cold hydrogen maldistribution not
All, it is to avoid the catalyst failure that hot localised points causes, there is good good in economic efficiency social benefit.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is a kind of schematic diagram of cold hydrogen allotter；
Fig. 3 is the another kind of schematic diagram of cold hydrogen allotter.
Detailed description of the invention
Below in conjunction with the accompanying drawings and detailed description of the invention, technical scheme is made more specifically
Bright.
Fig. 1 is the structural representation of the present invention, and Fig. 2 is a kind of schematic diagram of cold hydrogen allotter, and Fig. 3 is
The another kind of schematic diagram of cold hydrogen allotter.As seen from the figure, this cold hydrogen distribution pipe, including with cold hydrogen-holder
The feed pipe 1 connected, feed pipe 1 is provided with multiple dispensing branch 2, and described dispensing branch 2 is in branch
Ring shape is distributed.Equally distributed column nozzle 3 it is provided with bottom feed pipe 1 and dispensing branch 2.
It is provided with support beam 4 bottom cold hydrogen distribution pipe.
When reaction mass falls from hydrogenation reactor top, cold with what nozzle sprayed near cold hydrogen allotter
Hydrogen premixes, and the special construction of distribution straight tube and nozzle can make cold olefin hydrogen uniform, it is to avoid reactant
Material hot-spot.
Finally it is pointed out that above detailed description of the invention is only the more representational example of the present invention.Aobvious
So, the invention is not restricted to above-mentioned detailed description of the invention, it is also possible to have many deformation.Every according to the present invention
Technical spirit any simple modification, equivalent variations and modification that above detailed description of the invention is made, all
It is considered as belonging to protection scope of the present invention.
Claims (3)
1. the cold hydrogen distribution pipe for hydrogenation reactor, including the feed pipe being connected with cold hydrogen-holder,
It is characterized in that being provided with on described feed pipe bottom multiple dispensing branch, feed pipe and dispensing branch and be respectively provided with
There is equally distributed column nozzle.
A kind of cold hydrogen for hydrogenation reactor the most according to claim 1 distributes pipe, its feature institute
Stating dispensing branch is dendriform or annular spread.
A kind of cold hydrogen for hydrogenation reactor the most according to claim 1 distributes pipe, it is characterized in that
It is provided with support beam bottom described cold hydrogen distribution pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610455372.2A CN106000241A (en) | 2016-06-21 | 2016-06-21 | Cold hydrogen distribution pipe for hydrogenation reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610455372.2A CN106000241A (en) | 2016-06-21 | 2016-06-21 | Cold hydrogen distribution pipe for hydrogenation reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106000241A true CN106000241A (en) | 2016-10-12 |
Family
ID=57085655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610455372.2A Pending CN106000241A (en) | 2016-06-21 | 2016-06-21 | Cold hydrogen distribution pipe for hydrogenation reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106000241A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109364683A (en) * | 2018-11-19 | 2019-02-22 | 江苏环集团有限公司 | A kind of activated coke moving bed nitrogen heats oxygen barrier regenerative system and regeneration method |
| CN111558338A (en) * | 2020-05-25 | 2020-08-21 | 中国石油化工股份有限公司 | Gas-liquid mixing system |
-
2016
- 2016-06-21 CN CN201610455372.2A patent/CN106000241A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109364683A (en) * | 2018-11-19 | 2019-02-22 | 江苏环集团有限公司 | A kind of activated coke moving bed nitrogen heats oxygen barrier regenerative system and regeneration method |
| CN111558338A (en) * | 2020-05-25 | 2020-08-21 | 中国石油化工股份有限公司 | Gas-liquid mixing system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161012 |
|
| WD01 | Invention patent application deemed withdrawn after publication |