CN105013411B - A kind of heat-insulated also empty suspended-bed reactor in underground - Google Patents
A kind of heat-insulated also empty suspended-bed reactor in underground Download PDFInfo
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- CN105013411B CN105013411B CN201410167235.XA CN201410167235A CN105013411B CN 105013411 B CN105013411 B CN 105013411B CN 201410167235 A CN201410167235 A CN 201410167235A CN 105013411 B CN105013411 B CN 105013411B
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Abstract
The present invention provides a kind of heat-insulated also empty suspended-bed reactor in underground.The reactor is adapted to the mink cell focus hydrogenation lighting technique in petroleum refining process, the hydrogenation direct liquefaction technique of coal and biomass, hydrogenation lighting processing technology, and the high-temperature high-pressure chemical reaction engineering of other fluid foods are refined in the mixing of coal, biomass and heavy oil altogether.
Description
Technical field
The present invention provides a kind of heat-insulated also empty suspended-bed reactor in underground.The reactor is adapted in petroleum refining process
Mink cell focus hydrogenation lighting technique, the hydrogenation direct liquefaction technique of coal and biomass, the mixing of coal, biomass and heavy oil refines altogether
It is hydrogenated with lighting processing technology, and the high-temperature high-pressure chemical reaction engineering of other fluid foods.
Background technology
For a long time, in chemical engineering industry system, with the increase of reaction condition, such as temperature, pressure, high pressure inflammable gas
Deng being carried out in environment, the safety guarantee condition of the design library part editor and reuse made greatly improves, and device manufacturing, safety, environmental protection are carried
Very exacting terms is gone out, so as to substantially increase project cost and safe and environment-friendly cost.
In fossil energy in the lighting of heavy charge, purifying engineering, either DCL/Direct coal liquefaction, or heavy oil add
Hydrogen modification, kerosene refine altogether, reaction process is both needed to carry out in high temperature and pressure, hydrogen environment so that it is above-mentioned no matter which kind of technique bar
Part is all very harsh.Even conventional oil hydrogenation process for refining, need to also it face hydrogen state, 350 DEG C -470 DEG C of operating temperature,
Completed under operating pressure 8MPa-20MPa.
Harsh reaction condition, makes the industry of reaction unit be manufactured into for a huge engineering.For example, one million
Tonne coal, the hydrogenation reaction device of heavy oil, using the heat-resisting 2.25CrMoV steel of new resistant to hydrogen, the quality of separate unit reactor weighs number
Kiloton, not only smelts to steel, forges, being heat-treated and assembly welding, manufacture propose the technology of high intensity, technological requirement, and
Huge challenge is brought to communications and transportation and manufacture cost, limits hydrogenation lighting, the development of purifying engineering of coal.
CN1935943A discloses a kind of coal hydrogenation reaction device and its commercial Application, and the coal hydrogenation reaction device is by gas
Fluidized bed and bubbling bed and coal slurry recycle pump and heat exchanger composition, air flow bed and bubbling bed are contained in same cylindrical shape liner fire resisting altogether
In the housing of material, air flow bed is upper, and bubbling bed is under.Coal slurry can repeatedly enter reactor, can prevent precipitation, pass through
The cross jet of nozzle itself and the opposed percussion flow laid nozzle and formed can realize slurry atomization and droplet and H2 well
Mixing.However, for producing 5000000 tons of above-mentioned reaction units of oil product per year, reactor interior diameter is 6500mm, air-flow height of bed 48m,
Bubbling height of bed 40m, amounts to total high 98m.
CN102234520A, CN102417826A disclose the coal of big L/D ratio, heavy-oil hydrogenation tubular reactor, and set
Repeatedly injection hydrogen device, reduces the hydrogen excess quantity in reaction process, improves the utilization rate of hydrogen and reactor.It is such
Reactor, the succinct feature of device is embodied in medium and small experimental rig；It is but 1,000,000 tons/year light for Large Scale Industrial Process
The device of matter oil, the reaction tube of internal diameter 500mm, length will exceed 2000m, and control valve will exceed hundreds, only safety problem
It can not just solve.
CN1488727A provides a kind of suitable for weight, the hydrocracking reaction of residual oil, particularly inferior heavy, the hydrogenation of residual oil
Cracking method, using the combined unit that gas-liquid separator is set at the top of pipe-in-pipe reactor and inner tube, it is intended to by reduce weight,
The quantity for being hydrocracked engineering high temperature high-pressure installation of residual oil, to improve the security of engineering.
It can be seen from the above that the above-mentioned heavy-oil hydrogenation for being arranged at ground, direct coal liquefaction technology refines hydro-upgrading altogether with kerosene to be made
Large high-temperature high-pressure reactor, to improve the safety of device and environmental protection, causes that reactor wall thickness is big, tonnage
Weight, manufacture difficulty are big, the protection cost of device is much larger than the functional cost of device.
The content of the invention
Itd is proposed for the high temperature and high pressure containers that ground is set in safety and the limitation of environmental protection, the present invention by height
Warm high-pressure bottle is arranged at downhole safety protection and environmental protection space, so as to improve the safety protection level of high temperature and high pressure containers
With environmental protection level, the engineering cost of reduction high temperature and high pressure containers security protection and environmental protection.
The first aspect of the present invention provides a kind of underground heat-insulated also empty suspended-bed reactor, which is placed in underground cylinder
In type composite safe housing (2), which includes heat-proof string (3), inner tube tubing string (4), safety relief valve (5) and ground control
Valve group processed, forms between insulated exterior duct (3) and catalysis inner tube (4) and flows backwards also empty passage, and safety relief valve (5) is located at heat-proof string
(3) bottom, separated by a distance between inner tube tubing string (4) bottom and safety relief valve (5), heat-proof string (3) and inner tube pipe
Use righting in the locus between locus and reactor and underground cartridge type composite safe housing (2) between column (4)
Device controls, and the material inlet (6) of the reactor is located at the top of inner tube tubing string (4), and material outlet (7) is positioned at the also empty passage of refluence
Top.
Underground of the present invention is heat-insulated to go back the reaction vessel that hovering floating bed is draw ratio 10-10000, preferable draw ratio
For 100-5000, preferred draw ratio 200-2000.The draw ratio is the internal diameter and length ratio of heat-proof string (3).
In a preferred embodiment, the reactor described in first aspect present invention, wherein the underground cartridge type is answered
Safety shell is closed to be arranged at the combined housing of ground (1) below, which provides accommodation space for the reactor
With pressure release safe space,
Preferably, the combined housing can be straight well, inclined shaft cartridge type composite shell structure or Horizontal Well
Type tube type composite shell structure.
In a preferred embodiment, first aspect present invention any one of them reactor, wherein heat-proof string (3)
Or the cross section of inner tube tubing string (4) is substantially circular.
In a preferred embodiment, first aspect present invention any one of them reactor, wherein heat-proof string (3)
It is positioned over one heart in the cartridge type composite safe housing of underground with inner tube tubing string (4).
In a preferred embodiment, first aspect present invention any one of them reactor, wherein heat-proof string (3)
It is made of an inner tube and the outer tube being sleeved on outside the inner tube, the both ends of outer tube connect with the outer wall of inner tube to be formed between inner and outer pipes
Seal thermal insulation layer,
Preferably, seal insulated space along the longitudinally covered outer length of tube of outer tube outer wall at least 50%, preferably 70%, more
It is preferred that 90% or 100%.
In a preferred embodiment, first aspect present invention any one of them reactor, wherein sealing thermal insulation layer
For vacuum heat-insulating layer, or to be filled with the sealing thermal insulation layer of heat-barrier material.
In a preferred embodiment, first aspect present invention any one of them reactor, wherein inner tube tubing string (4)
Bottom the interior tapered entrance (8) of alloy material is installed.
In a preferred embodiment, first aspect present invention any one of them reactor, wherein inner tube tubing string (4)
The distance between bottom and safety relief valve (5) are >=0.3 meter (such as 0.5 meter).
In a preferred embodiment, first aspect present invention any one of them reactor, wherein safety relief valve
(5) effect is that accident, pressure occurs more than the safe pressure that safety relief valve is set in the reactor reaction device described in underground
When, safety relief valve automatically turns on, and is connected with pit shaft composite safe shell space, draws off reaction mass and reaction pressure, safety
The safe opening pressure of relief valve is set according to design requirement,
Preferable safety relief valve (5) is chip or ball-valve type valve, is connected with heat-proof string (3) bottom positive/negative thread button
Connect, preferable safe opening pressure be service pressure 1.2-1.5 times (such as 1.3 times), preferable safety relief valve material
Expect that for high-strength carbon tubing, preferred safety relief valve material be the composite pipe of stainless steel and high-strength carbon.
In a preferred embodiment, first aspect present invention any one of them reactor, wherein heat-proof string (3)
It is made of the heat-insulated pipe fitting positive/negative thread mouth connection of standard,
Preferably, the heat-insulated pipe fitting of the standard is the containing vacuum tube-in-tube compound heat-insulation structure of inner and outer pipes seamless welding
Or other types of tube-in-tube compound heat-insulation structure, it is preferably the engine request preparation according to reaction vessel outer wall heat-proof string
Different engineering parameters the heat-insulated pipe fitting of standard,
It is highly preferred that the inner tube of the heat-insulated pipe fitting of the standard is resistant to hydrogen heatproof stainless steel jointless tubing, liner is stainless
The carbon steel composite seamless tubing of steel or high-strength carbon tubing, outer tube are high-strength carbon tubing.
In a preferred embodiment, first aspect present invention any one of them reactor, wherein heat-proof string (3)
Compression strength >=30.0MPa (500 DEG C), apparent heat conductivity≤0.05W (m ° of K) -1 (500 DEG C)/1000m, heat-proof string
Minimum dropout intensity >=450t (500 DEG C)/1000m.
In a preferred embodiment, first aspect present invention any one of them reactor, wherein heat-proof string (3)
Compression strength >=25.0MPa (350 DEG C), apparent heat conductivity≤0.25W (m ° of K) -1 (350 DEG C)/1000m, heat-proof string
Minimum dropout intensity >=450t (350 DEG C)/1000m.
In a preferred embodiment, first aspect present invention any one of them reactor, wherein heat-proof string (3)
Compression strength >=10.0MPa (350 DEG C), apparent heat conductivity≤0.35W (m ° of K) -1 (350 DEG C)/1000m, heat-proof string
Minimum dropout intensity >=450t (350 DEG C)/1000m.
In a preferred embodiment, first aspect present invention any one of them reactor, wherein heat-proof string (3)
Part compression strength >=50.0MPa (500 DEG C), apparent heat conductivity≤0.05W (m ° of K) -1 (500 DEG C)/1000m, instlated tubular
Part dropout intensity >=500t (500 DEG C).
In a preferred embodiment, first aspect present invention any one of them reactor, wherein heat-proof string (3)
Part compression strength >=30.0MPa (350 DEG C), apparent heat conductivity≤0.25W (m ° of K) -1 (350 DEG C)/1000m, instlated tubular
Part dropout intensity >=500t (350 DEG C).
In a preferred embodiment, first aspect present invention any one of them reactor, wherein heat-proof string (3)
Part compression strength >=20.0MPa (350 DEG C), apparent heat conductivity≤0.35W (m ° of K) -1 (350 DEG C)/1000m, instlated tubular
Part dropout intensity >=500t (350 DEG C).
In a preferred embodiment, first aspect present invention any one of them reactor, wherein inner tube tubing string (4)
It is made of the connection of standard inner tube pipe fitting, the connection mode between standard inner tube pipe fitting is：Standard inner tube pipe fitting both ends positive/negative thread
Mouth connection, dropout intensity >=200t (500 DEG C) of standard inner tube pipe fitting.
In a preferred embodiment, first aspect present invention any one of them reactor, wherein the standard
Inner tube pipe fitting is high-strength carbon tubing or resistant to hydrogen heatproof stainless steel jointless tubing.
In a preferred embodiment, first aspect present invention any one of them reactor, wherein heat-proof string (3)
Centralizer between inner tube tubing string (4) is preferably trilobal cross or five blade profile centralizers, it is preferable dispose number for 0.5-2/
100 meters；
Preferably, the centralizer between heat-proof string (3) and underground cartridge type composite safe housing (2) is trilobal cross or five leaves
Type centralizer, it is preferable to dispose number as 0.5-2/100 meters.
In a preferred embodiment, first aspect present invention any one of them reactor, wherein heat-proof string (3)
It is connected respectively with outer, the inner tube in the control valve group of ground with inner tube tubing string (4) top, connection mode can be welding or positive and negative spiral shell
Line button connects.
In a preferred embodiment, first aspect present invention any one of them reactor, it is characterised in that described
Relative position of the reactor in the cartridge type composite safe housing of underground be by reactor in the cartridge type composite safe housing of underground
Lower deep coefficient h in the cartridge type composite safe housing of underground of safe capacity space factor k and reactorkDetermine, safe capacity
Space factor k is reduced, lower depth coefficient h with the increase of reaction severekFunction proportional with safe capacity space factor k closes
System, safe capacity space factor k is smaller, lower depth coefficient hkIt is smaller, safe capacity space factor k and lower deep coefficient hkCalculating it is public
Formula is as follows：
In a preferred embodiment, the reactor described in first aspect present invention, the reactor is in well
Relative position in cartridge type composite safe housing can be determined according to following principle：
Operating temperature≤500 DEG C in reactor, when operating pressure is 20-25MPa, safe capacity space factor k≤0.05,
Lower depth coefficient hk≤0.5；
Operating temperature≤500 DEG C in reactor, when operating pressure is 15-20MPa, safe capacity space factor k≤0.10,
Lower depth coefficient hk=0.5-0.6；
Operating temperature≤500 DEG C in reactor, when operating pressure is 8-15MPa, safe capacity space factor k≤0.15,
Lower depth coefficient hk=0.5-0.65；
Operating temperature≤500 DEG C in reactor, when operating pressure is 5-8MPa, safe capacity space factor k≤0.20, under
Deep coefficient hk=0.50-0.70；
Operating temperature≤500 DEG C in reactor, during operating pressure≤5MPa, safe capacity space factor k≤0.25, lower depth
Coefficient hk=0.60-0.70.
In a preferred embodiment, first aspect present invention any one of them reactor, it is characterised in that this is anti-
The workflow for answering device is：Fluid mechanics enter reactor by the entrance (6) at the top of inner tube tubing string (4), by inner tube pipe
After column (4) flows to the bottom of inner tube tubing string (4), above return to flowing backwards in also empty passage, through going out positioned at refluence also empty channel roof
Mouth (7) discharge.
The second aspect of the present invention is related to the heat-insulated also empty suspended-bed reactor well group in underground, any by first aspect present invention
Reactor composition described in, the underground by ground control valve group from the different hole patterns of surface line serial or parallel connection composition
Heat-insulated reverse-flow fixed bed reactors well group, preferable hole pattern are straight-line, 3 points anti-, inverted five spot or anti-7 points of cloth
Well form, well spacing >=5.0m.
In a specific embodiment, heat-insulated also empty suspended-bed reactor well group can be adopted in well of the present invention
Straight-line arranges shown in Fig. 3, can also use, the hole pattern formula of inverted five spot or anti-(referring to Fig. 4), well spacing at anti-3 points at 7 points
≥5.0m.Each reactor in the well in heat-insulated reverse-flow fixed bed reactors well group can be by being controlled by ground
Valve group is connected in series or in parallel with surface line, to form complete underground technological process.These hole patterns energy in engineering
Operation and maintenance is enough carried out to heat-insulated reverse-flow fixed bed reactors in the well after installation by the maintained equipment on ground.
The third aspect of the present invention is related to the purposes of first aspect present invention any one of them reactor, for oil plus
Mink cell focus hydrogenation lighting technique during work, the hydrogenation direct liquefaction technique of coal and biomass, coal, biomass and heavy oil
Mixing refining hydrogenation lighting processing technology, and the high-temperature high-pressure chemical reaction engineering of other fluid foods altogether.
Advantageous effect of the invention
The heat-insulated also empty suspended-bed reactor in underground of the present invention overcomes the existing high temperature and high pressure containers for being arranged at ground
It is high temperature by improving safe, explosion-proof, the environmentally friendly environment of high temperature and high pressure containers in security protection and problem present in environmental protection
High-pressure bottle, which provides, sets underground composite safe space, not only increases security control, environmental protection ability, also reduces high temperature
The manufacture cost and operating cost of high-pressure bottle device.
The heat-insulated also empty suspended-bed reactor in underground of the present invention, can combine according to the size operational blocks which partition systemization of reactor, and
The underground reactor well group of the different hole patterns of the composition connected in series or in parallel of the pipeline between the control valve group of ground can be passed through.The well
Under heat-insulated also empty suspended-bed reactor be adapted to mink cell focus hydrogenation lighting technique in petroleum refining process, coal and biomass
Direct liquefaction technique is hydrogenated with, hydrogenation lighting processing technology, and other fluid foods are refined in the mixing of coal, biomass and heavy oil altogether
High-temperature high-pressure chemical reaction engineering.
Brief description of the drawings
Fig. 1 undergrounds of the present invention are heat-insulated to go back hovering floating bed reaction vessel structure diagram.
The heat-insulated pipe fitting structure diagram of Fig. 2 standards of the present invention, wherein：
A is box cupling, and b is inner tube, and c is righting pipe, and d is thermal insulation layer, and e is outer tube.
Fig. 3 is a kind of schematic diagram of well spacing form of the heat-insulated also empty suspended-bed reactor well group in underground of the present invention.
Fig. 4 is the schematic diagram of another well spacing form of the heat-insulated also empty suspended-bed reactor well group in underground of the present invention.
Embodiment
To further illustrate the specific features of the heat-insulated also empty suspended-bed reactor in underground of the present invention, said with reference to attached drawing
It is bright but not thereby limiting the invention.
The heat-insulated also empty suspended-bed reactor in underground of the present invention is arranged in the cartridge type composite safe housing of underground, its structure group
See Fig. 1 into schematic diagram.
The reactor is placed in underground cartridge type composite safe housing 2 of the ground below 1, which includes heat-proof string
3rd, inner tube tubing string 4, safety relief valve 5 and ground control valve group, it is also empty logical to form refluence between insulated exterior duct 3 and catalysis inner tube 4
Road, safety relief valve 5 is located at the bottom of heat-proof string 3, separated by a distance between 4 bottom of inner tube tubing string and safety relief valve 5,
The space between locus and reactor and underground cartridge type composite safe housing 2 between heat-proof string 3 and inner tube tubing string 4
Position is controlled with centralizer, and the material inlet 6 of the reactor is located at the top of inner tube tubing string 4, and material outlet 7 is gone back positioned at refluence
The top of empty passage.
Underground of the present invention is heat-insulated to go back the reaction vessel that hovering floating bed is draw ratio 10-10000, preferable draw ratio
For 100-5000, preferred draw ratio 200-2000.
The structural characteristic parameter of the heat-insulated also empty suspended-bed reactor in underground of the present invention, such as the volume of reaction vessel, length
Footpath ratio, and the parameter such as reaction vessel material and structure, and underground cartridge type composite safe shell structure characteristic parameter and ground
Control valve group characteristic parameter, according to production capacity with reacting conversion condition, such as：Reaction liquid phase volume amount in unit interval, liquid phase air speed,
Linear velocity, fluidised form type, temperature, pressure and other parameters design to obtain.
The structure that the heat-insulated also empty suspended-bed reactor in underground of the present invention is set in pit shaft composite safe shell structure is special
Parameter is levied, is determined by the heat-insulated hovering floating bed structure of reactor characteristic parameter of going back in underground with pit shaft composite shell structure characteristic parameter,
The heat-insulated also empty suspended-bed reactor placement parameter in underground is under usual conditions, downhole safety capacity coefficient k=0.05-0.20, anti-
Answer deep coefficient h under devicek=0.4-0.7.
The heat-insulated also empty suspended-bed reactor in underground of the present invention, the heat-insulated pipe fitting of its standard is the closing of inner and outer pipes seamless welding
Vacuum tube-in-tube compound heat-insulation structure or other type tube-in-tube compound heat-insulation structures.It is heat-insulated according to reaction vessel outer wall during design
The engine request of tubing string, prepares the heat-insulated pipe fitting of standard of different engineering parameters.The structure diagram of the heat-insulated pipe fitting of standard referring to
Fig. 2, the heat-insulated pipe fitting of standard are made of inner tube b and the outer tube e being sleeved on outside inner tube b, and the both ends of outer tube connect with the outer wall of inner tube
Formed between inner and outer pipes and seal thermal insulation layer d, the relative position between inner and outer pipes is controlled by centralizer c, the heat-insulated pipe fitting of standard
One end be provided with box cupling a.
The heat-insulated also empty suspended-bed reactor in underground of the present invention, the inner tube b of its Plays instlated tubular part for resistant to hydrogen heatproof not
Rust steel seamless tubular goods, liner are high-strength carbon pipe for the carbon steel composite seamless tubing or high-strength carbon tubing, outer tube e of stainless steel
Material.
The heat-insulated also empty suspended-bed reactor in underground of the present invention, wherein, the safety relief valve 5 of 3 bottom of heat-proof string is piece
Formula structure, is connected with instlated tubular tubing string bottom positive/negative thread button, composition underground insulating reactor closing control space.
The heat-insulated also empty suspended-bed reactor in underground of the present invention, wherein, the work of the safety relief valve 5 of 3 bottom of heat-proof string
With being that accident occurs in the insulating reactor of underground, when pressure exceedes safety relief valve setting safe pressure, relief valve is opened automatically
Open, connected with pit shaft combined housing space, draw off reaction mass and reaction pressure.The safe opening pressure of safety relief valve according to
Design requirement is set, and in a specific embodiment, safe opening pressure is set as normal work pressure in the reactor
1.2 times of power.
The heat-insulated also empty suspended-bed reactor in underground of the present invention, wherein, inner tube tubing string is positioned in heat-proof string, inner tube pipe
Column is connected and composed by standard inner tube pipe fitting positive/negative thread button, arrives safety relief valve top 0.5m or 0.3m under inner tube tubing string deeply,
With the heat-insulated also empty reaction vessel in heat-proof string composition underground.
The heat-insulated also empty suspended-bed reactor in underground of the present invention, wherein, standard inner tube pipe fitting is respectively provided with for pipe fitting both ends
The N80 oil well oil conduit tubing of positive/negative thread button, its dropout intensity >=200t (500 DEG C).
The heat-insulated also empty suspended-bed reactor in underground of the present invention, wherein, the righting between heat-proof string 3 and inner tube tubing string 4
Device (referred to as inner tube centralizer) is three leaf pulley-type arrangements, and placement number is 2.0/100m.Heat-proof string 3 is answered with underground cartridge type
The centralizer (referred to as outer tube centralizer) closed between Safety shell 2 is trilobal cross centralizer, and placement number is 2.0/100m.
The heat-insulated also empty suspended-bed reactor in underground of the present invention, wherein, the heat-insulated also empty suspended-bed reactor in underground and ground
The connection mode of control valve group is that instlated tubular tubing string with outer, the inner tube in the control valve group of ground with connecting respectively at the top of inner tube tubing string
Connect, connection mode can be that welding or the connection of positive/negative thread button, composition are arranged at heat-insulated in the cartridge type composite safe housing of underground
Also blank pipe formula high-temperature high-voltage reaction container.
In a specific embodiment, when the underground of the present invention, heat-insulated also empty suspended-bed reactor is urged for heavy charge
When during carburetion slurry hydrogenation lighting engineering or for being catalyzed fluid preparation technique, safe capacity can be selected according to process conditions
Space factor k=0.18, deep coefficient h under reactork=0.6, it is temperature≤350 DEG C that reactor, which is adapted to operating condition, at this time,
High-temperature high-voltage reaction under pressure≤10MPa.
In a specific embodiment, the heat-insulated also empty suspended-bed reactor in underground of the invention is urged for heavy charge
When during carburetion slurry hydrogenation lighting engineering or for being catalyzed fluid preparation technique, heat-proof string can be selected according to process conditions
Compression strength >=10.0MPa (350 DEG C), apparent heat conductivity≤0.35W (m ° of K)-1(350 DEG C)/1000m, heat-proof string
Minimum dropout intensity >=450t (350 DEG C)/1000m.
In another specific embodiment, when the underground of the present invention, heat-insulated also empty suspended-bed reactor is used for heavy charge
When during catalytic slurry hydrogenation lighting engineering or for being catalyzed fluid preparation technique, the heat-insulated pipe fitting compression strength of standard >=
20.0MPa (350 DEG C), apparent heat conductivity≤0.35W (m ° of K)-1(350 DEG C)/1000m, heat-insulated pipe fitting dropout intensity >=
500t(350℃)。
In another specific embodiment, according to process conditions, safe capacity space factor k=0.12 is selected, it is and anti-
Deep coefficient h k=0.55 is answered under device, it is temperature≤350 DEG C that reactor, which is adapted to operating condition, at this time, the height under pressure≤10MPa
Warm high pressure is anti-.
In another specific embodiment, the heat-insulated also empty suspended-bed reactor in underground of the invention is for heavy charge
When during catalytic slurry hydrogenation lighting engineering or for being catalyzed fluid preparation technique, instlated tubular can be selected according to process conditions
Column compression strength >=25.0MPa (350 DEG C), apparent heat conductivity≤0.25W (m ° of K)-1(350 DEG C)/1000m, heat-proof string
Minimum dropout intensity >=450t (350 DEG C)/1000m.
In another specific embodiment, the heat-insulated also empty suspended-bed reactor in underground of the invention is for heavy charge
When catalytic slurry is hydrogenated with lighting engineering or during for being catalyzed fluid preparation technique, can according to process conditions, selection criteria every
Heat pipe part compression strength >=30.0MPa (350 DEG C), apparent heat conductivity≤0.25W (m ° of K)-1(350 DEG C)/1000m, it is heat-insulated
Pipe fitting dropout intensity >=500t (350 DEG C).
In another specific embodiment, the heat-insulated also empty suspended-bed reactor in underground of the invention is for heavy charge
When during catalytic slurry hydrogenation lighting engineering or for being catalyzed fluid preparation technique, according to process conditions safety can be selected to hold
Quantity space coefficient k=0.08, with deep coefficient h under reactork=0.48, at this time reactor be adapted to operating condition for temperature≤
500 DEG C, the high-temperature high-voltage reaction container under pressure≤25MPa.
In another specific embodiment, the heat-insulated also empty suspended-bed reactor in underground of the invention is for heavy charge
When during catalytic slurry hydrogenation lighting engineering or for being catalyzed fluid preparation technique, instlated tubular can be selected according to process conditions
Column compression strength >=30.0MPa (500 DEG C), apparent heat conductivity≤0.05W (m ° of K)-1(500 DEG C)/1000m, heat-proof string
Minimum dropout intensity >=450t (500 DEG C)/1000m.
In another specific embodiment, the heat-insulated also empty suspended-bed reactor in underground of the invention is for heavy charge
When catalytic slurry is hydrogenated with lighting engineering or during for being catalyzed fluid preparation technique, can according to process conditions, selection criteria every
Heat pipe part compression strength >=50.0MPa (500 DEG C), apparent heat conductivity≤0.05W (m ° of K)-1(500 DEG C)/1000m, it is heat-insulated
Pipe fitting dropout intensity >=500t (500 DEG C).
In a specific embodiment, the heat-insulated also empty suspended-bed reactor in underground of the invention can pass through ground well head
Control valve group is connected with surface line, the heat-insulated also empty suspended-bed reactor well group in composition underground.
When the heat-insulated also empty suspended-bed reactor in underground of the present invention is used in heavy charge catalytic slurry hydrogenation lighting engineering,
Can according to technological process, form be used for be catalyzed fluid preparation, catalytic slurry prepare, catalytic slurry hydrogenation and etc. underground every
The also empty suspended-bed reactor well group of heat, is connected, altogether by ground well head control valve group with surface line and other related equipment
With composition heavy charge hydrogenation lighting process unit system.
It is further heat-insulated to underground of the invention to go back hovering floating bed structure of reactor and using effect below in conjunction with embodiment
Fruit illustrates.
Embodiment
Using the heat-insulated also empty suspended-bed reactor in underground of the present invention, pass through 1.5t/d grades of heavy charge catalytic slurries
Hydrogenation lighting commerical test verification, wherein for being catalyzed the heat-insulated also empty suspended-bed reactor in the underground of fluid preparation, being used for
The heat-insulated also empty suspended-bed reactor in underground prepared by catalytic slurry, for the underground of catalytic slurry hydrogenation, heat-insulated to go back hovering floating bed anti-
The architectural feature of device is answered to be shown in Table 1.
1 underground of table is heat-insulated to go back hovering floating bed reaction unit architectural feature
In embodiment of the present invention, tested by the hydrogenation lighting commerical test of 1.5t/d grades of heavy charge catalytic slurries
Card, wherein, initial solvent is Huadian lignite and Erdos coal for the mixed solvent and circulation solvent, coal base heavy charge prepared
(Shenhua hydrogenation liquefaction coal), by the device, realizes the hydrogenation lighting engineering of coal base heavy charge.
Wherein, the heat-insulated also empty suspended-bed reactor realization in underground prepared by the present invention of fluid is catalyzed, reactor
Parameters are shown in Table 1, and result of the test is shown in Table 2, wherein the initial solvent used in catalysis fluid preparation, the raw material for circulating solvent have
Body is prepared and property is referring to the specification that Chinese Patent Application No. is 201410028794.2.
Table 2 is catalyzed the preparation effect of fluid
Wherein, hydrogenation slurry prepares the heat-insulated also empty suspended-bed reactor in underground of (i.e. prepared by catalytic slurry) by the present invention
To realize, the parameters of reactor are shown in Table 1, and catalysis fluid is the catalysis fluid that above-mentioned catalysis fluid preparation process is prepared,
Result of the test is shown in Table 3.
Table 3 is hydrogenated with slurry and prepares effect
Wherein, it is hydrogenated with lighting reaction to realize by the heat-insulated also empty suspended-bed reactor in underground of the present invention, by above-mentioned system
Standby hydrogenation slurry is sent into the heat-insulated also empty suspended-bed reactor in underground for being used for catalytic slurry hydrogenation, and the parameters of reactor are shown in
Table 1, result of the test is shown in Table 4.
Table 4 is hydrogenated with lighting reaction effect
Claims (40)
1. a kind of system containing the heat-insulated also empty suspended-bed reactor in underground, the reactor are placed in underground cartridge type composite safe shell
In body (2), which includes heat-proof string (3), inner tube tubing string (4), safety relief valve (5) and ground control valve group, heat-insulated
Being formed between tubing string (3) and inner tube tubing string (4) and flow backwards also empty passage, safety relief valve (5) is located at the bottom of heat-proof string (3),
It is separated by a distance between inner tube tubing string (4) bottom and safety relief valve (5), between heat-proof string (3) and inner tube tubing string (4)
Locus between locus and reactor and underground cartridge type composite safe housing (2) is controlled with centralizer, this is anti-
The material inlet (6) of device is answered to be located at the top of inner tube tubing string (4), material outlet (7) is described positioned at the top for flowing backwards also empty passage
Underground cartridge type composite safe housing to be arranged at the combined housing of ground (1) below, which is the reactor
Accommodation space and pressure release safe space are provided.
2. the system of claim 1, the underground is heat-insulated to go back the reaction vessel that hovering floating bed is draw ratio 10-10000.
3. the system of claim 2, wherein the underground is heat-insulated to go back the reaction vessel that hovering floating bed is draw ratio 100-5000.
4. the system of claim 3, wherein the underground is heat-insulated to go back the reaction vessel that hovering floating bed is draw ratio 200-2000.
5. the system of claim 1, wherein the combined housing is straight well, inclined shaft cartridge type composite shell structure, or water
Horizontal well well type cartridge type composite shell structure.
6. the cross section of the system of any one of claim 1-5, wherein heat-proof string (3) or inner tube tubing string (4) is substantially in circle
Shape.
7. the system of any one of claim 1-5, wherein heat-proof string (3) and inner tube tubing string (4) are positioned over underground cylinder with one heart
In type composite safe housing.
8. the system of any one of claim 1-5, wherein heat-proof string (3) are by an inner tube and the outer tube structure being sleeved on outside the inner tube
Into the both ends of outer tube connect with the outer wall of inner tube forms sealing thermal insulation layer between inner and outer pipes.
9. the system of claim 8, wherein sealing insulated space along at least the 50% of the longitudinally covered outer length of tube of outer tube outer wall.
10. the system of claim 9, wherein sealing insulated space along the longitudinally covered outer length of tube of outer tube outer wall at least
70%.
11. the system of claim 10, wherein sealing insulated space along the longitudinally covered outer length of tube of outer tube outer wall at least
90%.
12. the system of claim 11, wherein sealing insulated space along the 100% of the longitudinally covered outer length of tube of outer tube outer wall.
13. the system of claim 8, wherein sealing thermal insulation layer is vacuum heat-insulating layer, or to be filled with the sealing of heat-barrier material
Thermal insulation layer.
14. the system of any one of claim 1-5, the bottom of wherein inner tube tubing string (4) be provided with alloy material it is interior it is tapered enter
Mouth (8).
15. the distance between the system of any one of claim 1-5, wherein inner tube tubing string (4) bottom and safety relief valve (5) are
>=0.3 meter.
16. the distance between the system of claim 15, wherein inner tube tubing string (4) bottom and safety relief valve (5) are 0.5 meter.
17. the effect of the system of any one of claim 1-5, wherein safety relief valve (5) is in the reactor hair described in underground
When business is outer, pressure exceedes the safe pressure of safety relief valve setting, safety relief valve automatically turns on, with pit shaft composite safe shell
Body space connects, and draws off reaction mass and reaction pressure, the safe opening pressure of safety relief valve is set according to design requirement.
18. the system of claim 17, wherein safety relief valve (5) are chip or ball-valve type valve, with heat-proof string (3) bottom
Positive/negative thread button connects.
19. the safe opening pressure of the system of claim 17, wherein safety relief valve (5) is the 1.2- of service pressure
1.5 again.
20. the system of claim 17, wherein safety relief valve material are high-strength carbon tubing, or stainless steel and high strength carbon
The composite pipe of element.
21. the system of any one of claim 1-5, wherein heat-proof string (3) are by the heat-insulated pipe fitting positive/negative thread mouth connection of standard
Composition,
Containing vacuum tube-in-tube compound heat-insulation structure or other class of the heat-insulated pipe fitting of the standard for inner and outer pipes seamless welding
The tube-in-tube compound heat-insulation structure of type.
22. the system of claim 21, wherein the heat-insulated pipe fitting of the standard is the work according to reaction vessel outer wall heat-proof string
The heat-insulated pipe fitting of standard of different engineering parameters prepared by range request.
23. the system of claim 21, wherein the inner tube of the heat-insulated pipe fitting of the standard be resistant to hydrogen heatproof stainless steel jointless tubing,
Liner is high-strength carbon tubing for the carbon steel composite seamless tubing or high-strength carbon tubing, outer tube of stainless steel.
24. compression strength >=30.0MPa (500 DEG C) of the system of claim 22, wherein heat-proof string (3), apparent heat conductivity
≤ 0.05W (m ° of K) -1 (500 DEG C)/1000m, heat-proof string minimum dropout intensity >=450t (500 DEG C)/1000m.
25. compression strength >=25.0MPa (350 DEG C) of the system of claim 22, wherein heat-proof string (3), apparent heat conductivity
≤ 0.25W (m ° of K) -1 (350 DEG C)/1000m, heat-proof string minimum dropout intensity >=450t (350 DEG C)/1000m.
26. compression strength >=10.0MPa (350 DEG C) of the system of claim 23, wherein heat-proof string (3), apparent heat conductivity
≤ 0.35W (m ° of K) -1 (350 DEG C)/1000m, heat-proof string minimum dropout intensity >=450t (350 DEG C)/1000m.
27. part compression strength >=50.0MPa (500 DEG C) of the system of claim 22, wherein heat-proof string (3), depending on heat conduction system
Number≤0.05W (m ° of K) -1 (500 DEG C)/1000m, heat-insulated pipe fitting dropout intensity >=500t (500 DEG C).
28. part compression strength >=30.0MPa (350 DEG C) of the system of claim 22, wherein heat-proof string (3), depending on heat conduction system
Number≤0.25W (m ° of K) -1 (350 DEG C)/1000m, heat-insulated pipe fitting dropout intensity >=500t (350 DEG C).
29. part compression strength >=20.0MPa (350 DEG C) of the system of claim 22, wherein heat-proof string (3), depending on heat conduction system
Number≤0.35W (m ° of K) -1 (350 DEG C)/1000m, heat-insulated pipe fitting dropout intensity >=500t (350 DEG C).
30. the system of any one of claim 1-5, wherein inner tube tubing string (4) are made of the connection of standard inner tube pipe fitting, standard inner tube
Connection mode between pipe fitting is：The connection of standard inner tube pipe fitting both ends positive/negative thread mouths, the dropout intensity of standard inner tube pipe fitting >=
200t(500℃)。
31. the system of claim 30, wherein the standard inner tube pipe fitting is high-strength carbon tubing or resistant to hydrogen heatproof stainless steel
Seamless tubular goods.
32. the centralizer between the system of any one of claim 1-5, wherein heat-proof string (3) and inner tube tubing string (4) is three leaves
Type or five blade profile centralizers, placement number are 0.5-2/100 meters.
33. the system of any one of claim 1-5, the righting between heat-proof string (3) and underground cartridge type composite safe housing (2)
Device is trilobal cross or five blade profile centralizers, and placement number is 0.5-2/100 meters.
34. controlled respectively with ground at the top of the system of any one of claim 1-5, wherein heat-proof string (3) and inner tube tubing string (4)
Outer, inner tube connection in valve group, connection mode are welding or the connection of positive/negative thread button.
35. the system of any one of claim 1-5, it is characterised in that the system is in the cartridge type composite safe housing of underground
Relative position be in underground cartridge type by safe capacity space factor k of the system in the cartridge type composite safe housing of underground and system
Lower deep coefficient h in composite safe housingkDetermining, safe capacity space factor k is reduced with the increase of reaction severe, under
Deep coefficient hkWith the proportional functional relations of safe capacity space factor k, safe capacity space factor k is smaller, lower depth coefficient hkMore
It is small, safe capacity space factor k and lower deep coefficient hkCalculation formula it is as follows：
Safe capacity space factor
Lower depth coefficient
36. the system of claim 35, wherein relative position of the reactor in well in cartridge type composite safe housing is pressed
Determined according to following principle：
Operating temperature≤500 DEG C in reactor, when operating pressure is 20-25MPa, safe capacity space factor k≤0.05, lower depth
Coefficient hk≤0.5；
Operating temperature≤500 DEG C in reactor, when operating pressure is 15-20MPa, safe capacity space factor k≤0.10, lower depth
Coefficient hk=0.5-0.6；
Operating temperature≤500 DEG C in reactor, when operating pressure is 8-15MPa, safe capacity space factor k≤0.15, lower depth
Coefficient hk=0.5-0.65；
Operating temperature≤500 DEG C in reactor, when operating pressure is 5-8MPa, safe capacity space factor k≤0.20, lower deep system
Number hk=0.50-0.70；
Operating temperature≤500 DEG C in reactor, during operating pressure≤5MPa, safe capacity space factor k≤0.25, lower depth coefficient
hk=0.60-0.70.
37. the system of any one of claim 1-5, the workflow of the system are：Fluid mechanics positioned at inner tube tubing string (4) by pushing up
The material inlet (6) in portion enters reactor, after inner tube tubing string (4) flows to the bottom of inner tube tubing string (4), above returns to refluence also
In empty passage, through being discharged positioned at the material outlet (7) for flowing backwards also empty channel roof.
38. the heat-insulated also empty suspended-bed reactor well group in underground, is made of the system of any one of claim 1-37, is controlled by ground
The heat-insulated reverse-flow fixed bed reactors well group in underground of valve group processed and the different hole patterns of surface line serial or parallel connection composition.
39. the heat-insulated also empty suspended-bed reactor well group in the underground of claim 38, wherein hole pattern be straight-line, it is 3 points anti-,
Inverted five spot or anti-7 points of well spacing form, well spacing >=5.0m.
40. the purposes of the system of any one of claim 1-37, lightweight chemical industry is hydrogenated with for the mink cell focus in petroleum refining process
Hydrogenation lighting processing technology is refined in the hydrogenation direct liquefaction technique of skill, coal and biomass, the mixing of coal, biomass and heavy oil altogether,
And the high-temperature high-pressure chemical reaction engineering of other fluid foods.
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| CN201410167235.XA CN105013411B (en) | 2014-04-24 | 2014-04-24 | A kind of heat-insulated also empty suspended-bed reactor in underground |
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| CN201410167235.XA CN105013411B (en) | 2014-04-24 | 2014-04-24 | A kind of heat-insulated also empty suspended-bed reactor in underground |
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| CN107805519B (en) * | 2016-09-09 | 2020-10-16 | 北京华石联合能源科技发展有限公司 | Suspension bed hydrogenation discharge system |
| WO2024081198A1 (en) * | 2022-10-11 | 2024-04-18 | Enoverra Energy & Environment, Inc. | Systems and methods for converting biomass to biocrude using hydrothermal liquefaction |
Citations (4)
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|---|---|---|---|---|
| US3449247A (en) * | 1965-10-23 | 1969-06-10 | William J Bauer | Process for wet oxidation of combustible waste materials |
| CN1525882A (en) * | 2001-06-04 | 2004-09-01 | High pressure extraction | |
| CN1935943A (en) * | 2006-09-06 | 2007-03-28 | 华东理工大学 | Coal hydrogenation reaction device and its industrial application |
| CN202638402U (en) * | 2012-06-15 | 2013-01-02 | 江苏科圣化工机械有限公司 | Organosilicone fluidized bed reactor |
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2014
- 2014-04-24 CN CN201410167235.XA patent/CN105013411B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3449247A (en) * | 1965-10-23 | 1969-06-10 | William J Bauer | Process for wet oxidation of combustible waste materials |
| CN1525882A (en) * | 2001-06-04 | 2004-09-01 | High pressure extraction | |
| CN1935943A (en) * | 2006-09-06 | 2007-03-28 | 华东理工大学 | Coal hydrogenation reaction device and its industrial application |
| CN202638402U (en) * | 2012-06-15 | 2013-01-02 | 江苏科圣化工机械有限公司 | Organosilicone fluidized bed reactor |
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