CN109046230A - A kind of preparation method of bird-nest type Fischer Tropsch waxes depth removing impurities adsorbent - Google Patents
A kind of preparation method of bird-nest type Fischer Tropsch waxes depth removing impurities adsorbent Download PDFInfo
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- CN109046230A CN109046230A CN201810985072.4A CN201810985072A CN109046230A CN 109046230 A CN109046230 A CN 109046230A CN 201810985072 A CN201810985072 A CN 201810985072A CN 109046230 A CN109046230 A CN 109046230A
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- 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
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
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- 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
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/04—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
- B01J20/041—Oxides or hydroxides
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- 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
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
- B01J20/08—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04 comprising aluminium oxide or hydroxide; comprising bauxite
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- 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
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
- B01J20/28042—Shaped bodies; Monolithic structures
- B01J20/28045—Honeycomb or cellular structures; Solid foams or sponges
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- 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
- C10G73/00—Recovery or refining of mineral waxes, e.g. montan wax
- C10G73/42—Refining of petroleum waxes
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Abstract
The invention discloses a kind of preparation methods of bird-nest type Fischer Tropsch waxes depth removing impurities adsorbent, first rolled after mixing by boehmite, containing silicon inorganic oxide, auxiliary agent and binder, the mixed aqueous solution for being added at one time inorganic acid organic acid and surfactant be rolled into can plasticized body, material is obtained after health, orifice plate is crushed to green body and obtains carrier through drying and roasting, carrier impregnation is in bicarbonate metal salt solution, it takes out again through drying and roasting, obtains Fischer Tropsch waxes depth removing impurities adsorbent after cooling.Not only compression strength is high for removing impurities adsorbent prepared by the present invention, and specific surface area and Kong Ronggao, surface-active is strong, appearance impurity ability is high, anticoking capability is good, the impurity quick separating in Fischer Tropsch waxes processing in catalyst can be made to come out without accumulating on catalyst layer, liquid distribution is uniform and flow resistance is small, make reactor bed pressure drop reduction, is conducive to hydrogenation plant operation.
Description
Technical field
The invention belongs to technical field of chemistry, are related to a kind of preparation side of bird-nest type Fischer Tropsch waxes depth removing impurities adsorbent
Method.
Technical background
F- T synthesis is the synthesis gas that is obtained using coal base or natural gas base as raw material, and synthesis is under catalyst system with paraffin
The technical process of liquid fuel and other chemical products based on hydrocarbon, Fischer Tropsch waxes are the primary products in Fischer-Tropsch synthesis
One of and hydrofinishing important source material.In fischer-tropsch synthesis process, paste state bed reactor because its heat and mass effect is good,
The features such as pressure drop is low, and low cost of investment and catalyst can load and unload online and be widely used.Ferrum-based catalyst has because of it
The features such as cheap, active high, selectivity is good, be a kind of catalyst of most industrial value.But due to used iron
Series catalysts grain diameter is between 1 ~ 200 μm.Simultaneously during the reaction because of catalyst breakage caused by wearing, final products
The catalyst particle size fine that mixes in wax reaches submicron order.Contain submicron order impurity, submicron order in Fischer Tropsch waxes
Impurity Fischer Tropsch waxes can be deposited on hydrogenation catalyst bed during follow-up hydrogenation, and reactor pressure decrease is caused to rise, shadow
It rings the hydrogenation plant cycle of operation, therefore is badly in need of exploitation Fischer Tropsch waxes depth removing impurities technology.
Chinese invention patent discloses a kind of filter method of Tscher-Topsch synthesis of heavy wax, and this method is will be anti-from F- T synthesis
The heavy wax for answering device to extract out is sent into high gradient magnetic filter, after so that ferrum-based catalyst therein is adsorbed removing, enters back into lower sequence
Device.The inventive method is to carry out Adsorption, process letter to the ferrum-based catalyst in heavy wax using high gradient magnetic filter
It is single, easily operated, and material consumption is lower, will not also generate waste residue, avoids the generation of secondary pollution, but adsorb removing impurities effect not
It is big good.
Another patent of invention of China discloses a kind of Separation Process for Making Synthetic Catalyst with Slurry Bed Reactor, according to routine
Fischer-Tropsch synthesis method, synthesis gas is passed through paste state bed reactor and carries out catalysis reaction, suspended state material in reactor is conveyed
Enter inorganic diaphragm separator, using inoranic membrane sieving actoion, makes liquid synthetic oil therein through inoranic membrane from suspended state material
It separates, is purified oil；Rich in catalyst concentration slurry oil return paste state bed reactor reaction zone participate in reaction or after
Continuous multi-cycle separation, although this method removing impurities effect is preferable, troublesome in poeration, process flow is long, and energy consumption is high, high production cost.
Summary of the invention
For submicron order impurity is contained in above-mentioned Fischer Tropsch waxes in the prior art, submicron order impurity is in F- T synthesis
It can be deposited on hydrogenation catalyst bed during wax follow-up hydrogenation, reactor pressure decrease is caused to rise, influence hydrogenation plant operation
The problem of period, the invention proposes one kind, not only process flow is simple, easily operated, and material consumption is lower, and adsorption efficiency is high,
The preparation method of the good bird-nest type Fischer Tropsch waxes depth removing impurities adsorbent of adsorption effect.
The preparation method of bird-nest type Fischer Tropsch waxes depth removing impurities adsorbent of the present invention, the bird-nest type F- T synthesis
Wax depth removing impurities adsorbent is honeycomb cylindrical body, it is characterised in that: in the bird-nest type Fischer Tropsch waxes depth removing impurities adsorbent
Aluminum oxide is 50~80wt%, silica is 10~40wt%, surplus is alkali metal oxide, and step as follows
It is prepared:
A, first by boehmite, mix to roll by weight percentage with binder containing silicon inorganic oxide, auxiliary agent and be uniformly made
Mixture, then be added at one time in mixture the mixed aqueous solution of inorganic acid, organic acid and surfactant and carry out the system of rolling
At plastic character body,
B, plastic character body is subjected to health, vacuum pugging is carried out after health and obtains material,
C, material is squeezed into item through the orifice plate of different meshes again, stretching, pelletizing are shaped to green body, in temperature be 120 by green body
~180oIt under C after dry 6~24 h, then by the green body after drying in temperature is 500~800o2~8 h of roasting under C, cooling
To bird-nest type Fischer Tropsch waxes depth removing impurities adsorbing agent carrier；
D, bicarbonate metal salt solution is made in bicarbonate dissolving metal salts in deionized water,
E, bird-nest type Fischer Tropsch waxes depth removing impurities adsorbing agent carrier is immersed in bicarbonate metal salt solution again, takes out Fischer-Tropsch
Fischer Tropsch waxes depth removing impurities adsorbing agent carrier is placed on 80~150 after draining off by synthetic wax depth removing impurities adsorbing agent carrieroC temperature
Lower dry 2~8 h of degree, then by the Fischer Tropsch waxes depth removing impurities adsorbing agent carrier after drying in temperature be 200~400oC's
2~6 h of kiln roasting obtains bird-nest type Fischer Tropsch waxes depth removing impurities adsorbent after cooling.
The bird-nest type Fischer Tropsch waxes depth removing impurities sorbent shapes are honeycomb cylindrical body, 3~45 mm of partial size, height 3
~15 mm, 500~1000 mesh of aperture density, specific surface area are 200~450 m20.30~0.70 cm of/g, Kong Rongwei3/g。
The alkaline metal oxide is Na2O、K2O, one or more of MgO, CaO and BaO are formed.
Sodium oxide molybdena mass content is less than 0.06%, Al in the boehmite2O3Mass content is greater than 99.0%, intends thin water
260~360 m of aluminium stone specific surface area2/ g, hole hold 0.9~1.3 cm3/g。
The silicon inorganic oxide that contains is one of amorphous silicon aluminium, nano silica and acidic silicasol or several
Kind, wherein in amorphous silicon aluminium sodium oxide molybdena mass content less than 0.06%, SiO2Mass content 10~70%, specific surface area 350~
550 m2/ g, hole hold 1.0~1.5 cm3/g。
The auxiliary agent is one of glucose, soluble starch, polyethylene glycol, polyvinyl alcohol, glycerol, oleic acid or several
Kind, the binder is one of sesbania gum, methylcellulose or two kinds, and the mineral acid solution is nitric acid or phosphorus
One or both of acid, the organic acid be one of citric acid, tartaric acid, oxalic acid, amino acid and acetic acid or
It is several；The surfactant be nonionic surfactant in fatty alcohol polyoxyethylene ether, alkyl phenol polyoxyethylene
One or more of ether, TWEEN Series, aliphatic acid polyethenoxy ether.
In the boehmite, the mixture containing silicon inorganic oxide, auxiliary agent and binder, the boehmite matter
Amount percentage is 30-75%, and mass percent containing silicon inorganic oxide is 15-50%, and it is 1% that mass percent, which is added, in the auxiliary agent
~10%, mass percent 1.0%~10.0% is added in binder；The inorganic acid, organic acid, surfactant additional amount difference
For above-mentioned mixture weight 1.0%~8.0%, 1.0~8.0% and 0.5~5.0%.
It is preferably 2.0%~5.0% that mass percent, which is added, in the auxiliary agent, and it is preferably 3.0% that mass percent, which is added, in binder
~8.0%, mass percent 2.0%~6.0% is added in inorganic acid, and mass percent 3.0~6.0%, surface-active is added in organic acid
Mass percent 2.0~4.0% is added in agent.
The bicarbonate metal salt is saleratus, saleratus, calcium bicarbonate or the one or more combinations of magnesium bicarbonate.
The present invention is using ceramics, metal or its composite material of the μ different meshes of 2nm~100 as honeycomb made of raw material
Bird's Nest shape adsorbing agent carrier, by the way that depth removing impurities adsorbent in Fischer Tropsch waxes processing is made after alkali metals modified.The present invention
Not only compression strength is high for the removing impurities adsorbent of preparation, and specific surface area and Kong Ronggao, and surface-active is strong, appearance impurity ability height,
Anticoking capability is good, the impurity quick separating in Fischer Tropsch waxes processing in catalyst can be made to come out without accumulating in catalyst layer
On, liquid distribution is uniform and flow resistance is small, makes reactor bed pressure drop reduction, is conducive to hydrogenation plant operation.
Specific embodiment
1 adsorbent A 1 of embodiment
By 124 g macropore boehmites (butt 70%), 151 g amorphous silicon aluminium (butt 75%, SiO2Mass content 40%), 9
G sesbania gum, 3 g methylcellulose auxiliary agents roll to be uniformly mixed with 6 g polyethylene glycol (molecular weight 8000-10000) is made mixing
Material, then be added at one time in mixture by the mixed aqueous solution of 8 g nitric acid, 4 g acetic acid and 4 g octyl alcohol polyoxyethylene ether
255 ml, 24 h of health can be carried out after plasticized body by being rolled into, and the material after health carries out vacuum pugging, and material is through 500 after pugging
Mesh, the orifice plate of 3 mm of diameter is squeezed into item, green body is made in stretching, pelletizing shaping, by green body at 120 DEG C after dry 4 h, will
Green body obtains 1 carrier of adsorbent A after roasting 3 h at 650 DEG C.
6.4 g saleratus are dissolved in 50 ml deionized waters, 75 ml are settled to.The absorption for taking above-mentioned steps to prepare
Agent A1 carrier 97g is placed in dipping tank, pours into 75 ml potassium bicarbonate aqueous solutions, after impregnating 2 h, by the carrier after dipping prior to
100 oDry 4 h in C baking oven, then be placed in Muffle furnace and be warming up to 240oC roasts 3 h to get adsorbent A 1 is arrived.
2 adsorbent A 2 of embodiment
By 124 g macropore boehmites (butt 70%), 151 g amorphous silicon aluminium (butt 75%, SiO2Mass content 40%) and
Nano silicon oxide (each half of weight), 9 g sesbania gums, 3 g methylcellulose auxiliary agents and 6 g polyethylene glycol (molecular weight 8000-
10000) it rolls to be uniformly mixed and mixture is made, then be added at one time in mixture by 8 g nitric acid, 4 g acetic acid and 4 g octyls
255 ml of aqueous solution of alcohol polyoxyethylene ether, 24 h of health can be carried out after plasticized body by being rolled into, and the material after health carries out vacuum
Pugging, material is through 800 mesh after pugging, and the orifice plate of 15 mm of diameter is squeezed into item, stretching, pelletizing shaping are made green body, green body exist
After 120 DEG C of 4 h of drying, 2 carrier of adsorbent A is obtained after green body to be roasted to 3 h at 650 DEG C.
6.4 g saleratus are dissolved in 50 ml deionized waters, 75 ml are settled to.The absorption for taking above-mentioned steps to prepare
Agent A2 carrier 97g is placed in dipping tank, pours into 75 ml potassium bicarbonate aqueous solutions, after impregnating 2 h, by the carrier after dipping prior to
100 oDry 4 h in C baking oven, then be placed in Muffle furnace and be warming up to 240oC roasts 3 h to get adsorbent A 2 is arrived.
3 adsorbent A 3 of embodiment
By 124 g macropore boehmites (butt 70%), 151 g amorphous silicon aluminium (butt 75%, SiO2Mass content 40%) and
Acidic silicasol (each half of weight), 9 g glycerol, 3 g methylcellulose auxiliary agents and 6 g polyethylene glycol (molecular weight 8000-
10000) it rolls to be uniformly mixed and mixture is made, then be added at one time in mixture by 8 g nitric acid, 4 g acetic acid and 4 g octyls
255 ml of mixed aqueous solution of alcohol polyoxyethylene ether, 24 h of health can be carried out after plasticized body by being rolled into, and the material after health carries out
Vacuum pugging, for material through 1000 mesh, the orifice plate of 45 mm of diameter is squeezed into item, green body is made in stretching, pelletizing shaping, will after pugging
Green body obtains 3 carrier of adsorbent A after green body to be roasted to 3 h at 650 DEG C after 120 DEG C of dry 4 h.
6.4 g saleratus are dissolved in 50 ml deionized waters, 75 ml are settled to.The absorption for taking above-mentioned steps to prepare
Agent A3 carrier 97g is placed in dipping tank, pours into 75 ml potassium bicarbonate aqueous solutions, after impregnating 2 h, by the carrier after dipping prior to
100 oDry 4 h in C baking oven, then be placed in Muffle furnace and be warming up to 240oC roasts 3 h to get adsorbent A 3 is arrived.
4 adsorbent A 4 of embodiment
220 g macropore boehmites (butt 70%), 70g nano silica (butt 92%), 9 g sesbania gums, 3 g are solvable
Property starch rolls to be uniformly mixed with 9 g oleic acid is made mixture, then is added at one time in mixture by 9 g nitric acid, 5 g lemons
Acid and 230 ml of mixed aqueous solution of 6 g Tween-80s, 24 h of health can be carried out after plasticized body by being rolled into, the material after health into
Row vacuum pugging, material is through different 800 mesh after pugging, and the orifice plate of 25 mm of diameter is squeezed into item, base is made in stretching, pelletizing shaping
Body, by green body after 150 DEG C of dry 3 h, obtain 4 carrier of adsorbent A after green body to be roasted to 2 h at 680 DEG C.
17.3 g calcium bicarbonates are dissolved in 50 ml deionized waters, 80 ml are settled to.The suction for taking above-mentioned steps to prepare
Attached dose of 94 g of A4 carrier is placed in dipping tank, pours into 80 ml calcium bicarbonate aqueous solutions, after impregnating 2 h, the carrier after dipping is first
In 80oDry 8 h in C baking oven, then be placed in Muffle furnace and be warming up to 260oC roasts 2 h to get adsorbent A 4 is arrived.
5 adsorbent A 5 of embodiment
By 83 g macropore boehmites (butt 70%), 178g amorphous silicon aluminium (butt 80%, SiO2Mass content 60%), 8
G sesbania gum, 2 g methylcellulose auxiliary agents roll to be uniformly mixed with 9 g glycerol is made mixture, then disposably adds in mixture
Enter 220 ml of mixed aqueous solution for calculating polyoxyethylene ether by 6 g nitric acid, 3 g phosphoric acid, 4 g amino acid and 6 g dodecyls, rolls
At that can carry out 24 h of health after plasticized body, the material after health carries out vacuum pugging, and material is through different 800 mesh, diameter after pugging
After the orifice plate of 25 mm is squeezed into item, dry 3 h are made at green body, by green body 150 DEG C in stretching, pelletizing shaping, green body is existed
5 carrier of adsorbent A is obtained after roasting 2 h at 680 DEG C.
14.5 g magnesium bicarbonates are dissolved in 50 ml deionized waters, 80 ml are settled to.The suction for taking above-mentioned steps to prepare
Attached dose of A5 carrier 96g is placed in dipping tank, pours into 80 ml magnesium bicarbonate aqueous solutions, after impregnating 2 h, the carrier after dipping is first
In 80oDry 8 h in C baking oven, then be placed in Muffle furnace and be warming up to 260oC roasts 2 h to get adsorbent A 5 is arrived.
6 adsorbent A 6 of embodiment
By 166 g macropore boehmites (butt 70%), 90g nano silica (butt 92%), 9 g sesbania gums, 3 g first
Base cellulose auxiliary agent rolls to be uniformly mixed with 9 g oleic acid is made mixture, then is added at one time in mixture by 9 g nitric acid, 5 g
210 ml of mixed aqueous solution of citric acid and 6 g alkyl phenol polyoxyethylene ether, 24 h of health, health can be carried out after plasticized body by being rolled into
Rear material carries out vacuum pugging, and for material through different 600 mesh, it is whole that the orifice plate of 15 mm of diameter is squeezed into item, stretching, pelletizing after pugging
Shape at green body, by green body after 120 DEG C of dry 4 h.6 carrier of adsorbent A is obtained after green body to be roasted to 3 h at 600 DEG C.
10.9 g magnesium bicarbonates and 5.8 g calcium bicarbonates are dissolved in 50 ml deionized waters, 80 ml are settled to.It takes
6 carrier of adsorbent A, 95 g for stating step preparation is placed in dipping tank, pours into 80 ml magnesium bicarbonates and calcium bicarbonate aqueous solution, is soaked
After 2 h of stain, by the carrier after dipping prior to 100oDry 6 h in C baking oven, then be placed on program in Muffle furnace and be warming up to 300oC
2 h are roasted to get adsorbent A 6 is arrived.
7 adsorbent A 7 of embodiment
By 214 g macropore boehmites (butt 70%), 43 nano silicas (butt 92%), 28 g acidic silicasols
(SiO2 mass content 25%), 8 g sesbania gums, 2 g methylcellulose auxiliary agents rolled with 6 g polyvinyl alcohol be uniformly mixed be made it is mixed
Material is closed, then is added at one time in mixture by 8 g nitric acid, 4 g tartaric acid and 6 g Tween-80s, 5g aliphatic acid polyethenoxy ether
200 ml of mixed aqueous solution, 24 h of health can be carried out after plasticized body by being rolled into, and the material after health carries out vacuum pugging, after pugging
Material through different 800 mesh, the orifice plate of 25 mm of diameter is squeezed into item, green body is made in stretching, pelletizing shaping, by green body at 120 DEG C
After lower 4 h of drying, 7 carrier of adsorbent A is obtained after green body to be roasted to 4 h at 650 DEG C.
4.2 g saleratus and 3.4 g barium bicarbonates are dissolved in 50 ml deionized waters, 77 ml are settled to.It takes
State step preparation 7 carrier of adsorbent A, 96 g place dipping tank in, pour into 77 ml saleratus mixed with barium bicarbonate it is water-soluble
Liquid, after impregnating 2 h, by the carrier after dipping prior to 120oDry 4 h in C baking oven, then be placed on program in Muffle furnace and be warming up to
320 oC roasts 2 h to get adsorbent A 7 is arrived.
Performance of the adsorbent index in above-described embodiment is as follows
Example partial size height aperture density (mesh) specific surface area (m2/ g) Kong Rong (cm3/ g) compression strength (MPa)
1 5 5 550 212 0.35 12.3
2 10 8 562 236 0.39 12.8
3 15 10 682 249 0.41 15.1
4 25 15 694 252 0.48 15.3
5 30 12 706 269 0.56 15.9
6 35 12 805 305 0.58 20.
7 40 15 856 408 0.67 21.5
Wherein partial size and height are mm.
Since the present invention has the above technical characterstic unlike the prior art, make bird-nest type F- T synthesis of the present invention
Wax depth removing impurities adsorbent can efficiently solve the process for producing synthetic oil through Fischer-Tropsch Synthesis using coal or natural gas as raw material
The separation and recovery problem of middle micro-solid catalyst is synthesizing micron, sub-micron even nanoscale micro-solid catalyst
Sufficiently being applied in oily industry.
Claims (5)
1. a kind of preparation method of bird-nest type Fischer Tropsch waxes depth removing impurities adsorbent, the bird-nest type Fischer Tropsch waxes depth is de-
Miscellaneous adsorbent is honeycomb cylindrical body, it is characterised in that: three oxidation two in the bird-nest type Fischer Tropsch waxes depth removing impurities adsorbent
Aluminium is 50~80wt%, silica is 10~40wt%, surplus is alkali metal oxide, and as follows step preparation and
At:
A, it first mixes by weight percentage by boehmite, containing silicon inorganic oxide, auxiliary agent with binder after rolling uniformly, one
The mixed aqueous solution that inorganic acid, organic acid and surfactant is added in secondary property, which roll, is made plastic character body,
B, plastic character body is subjected to health, vacuum pugging is carried out after health and obtains material,
C, material is squeezed into item through the orifice plate of different meshes again, stretching, pelletizing are shaped to green body, in temperature be 120 by green body
~180oIt under C after dry 6~24 h, then by the green body after drying in temperature is 500~800o2~8 h of roasting under C, cooling
To bird-nest type Fischer Tropsch waxes depth removing impurities adsorbing agent carrier；
D, bicarbonate metal salt solution is made in bicarbonate dissolving metal salts in deionized water,
E, bird-nest type Fischer Tropsch waxes depth removing impurities adsorbing agent carrier is immersed in bicarbonate metal salt solution again, takes out Fischer-Tropsch
Synthetic wax depth removing impurities adsorbing agent carrier, by Fischer Tropsch waxes depth removing impurities adsorbing agent carrier 80~150 after draining offoC temperature
Lower 2~8 h of drying, then by the bird-nest type Fischer Tropsch waxes depth removing impurities adsorbing agent carrier after drying temperature be 200~400o2~6 h of kiln roasting of C obtains bird-nest type Fischer Tropsch waxes depth removing impurities adsorbent after cooling.
2. a kind of preparation method of bird-nest type Fischer Tropsch waxes depth removing impurities adsorbent according to claim 1, feature
It is: 3~45 mm of Fischer Tropsch waxes depth removing impurities adsorbent partial size, 3~15 mm of height, aperture density 500~1000
Mesh, specific surface area are 200~450 m20.30~0.70 cm of/g, Kong Rongwei3/g。
3. a kind of preparation method of bird-nest type Fischer Tropsch waxes depth removing impurities adsorbent according to claim 1, feature
Be: the alkaline metal oxide is Na2O、K2O, one or more of MgO, CaO and BaO are formed.
4. a kind of preparation method of bird-nest type Fischer Tropsch waxes depth removing impurities adsorbent according to claim 1, feature
Be: sodium oxide molybdena mass content is less than 0.06%, Al in the boehmite2O3Mass content is greater than 99.0%, boehmite
260~360 m of specific surface area2/ g, hole hold 0.9~1.3 cm3/g。
5. a kind of preparation method of bird-nest type Fischer Tropsch waxes depth removing impurities adsorbent according to claim 1, feature
Be: described containing silicon inorganic oxide is one of amorphous silicon aluminium, nano silica and acidic silicasol or several,
Wherein in amorphous silicon aluminium sodium oxide molybdena mass content less than 0.06%, SiO2Mass content 10~70%, specific surface area 350~550
m2/ g, hole hold 1.0~1.5 cm3/g。
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