CN107876016A - A kind of low temperature liquid phase antichlor and its preparation method and application - Google Patents
A kind of low temperature liquid phase antichlor and its preparation method and application Download PDFInfo
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- CN107876016A CN107876016A CN201711151914.8A CN201711151914A CN107876016A CN 107876016 A CN107876016 A CN 107876016A CN 201711151914 A CN201711151914 A CN 201711151914A CN 107876016 A CN107876016 A CN 107876016A
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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
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/223—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material containing metals, e.g. organo-metallic compounds, coordination complexes
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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
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
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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
- C10G25/00—Refining of hydrocarbon oils in the absence of hydrogen, with solid sorbents
- C10G25/003—Specific sorbent material, not covered by C10G25/02 or C10G25/03
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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
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/20—Characteristics of the feedstock or the products
- C10G2300/201—Impurities
- C10G2300/202—Heteroatoms content, i.e. S, N, O, P
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- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention provides a kind of low temperature liquid phase antichlor, the antichlor is made up of the component B of component A and absorption on component A, the component A is the activated carbon after modified dose of modification, the component B is sodium acetate or sodium citrate, and the mass ratio of the component A and component B are (4~9)：The mass content of modifying agent is 20%~35% in 1, the component A, and surplus is activated carbon.Present invention also offers a kind of application of method for preparing the low temperature liquid phase antichlor and the low temperature liquid phase antichlor in catalytic reforming generates oily dechlorination.Low temperature liquid phase antichlor of the present invention perfect can solve the problems, such as that antichlor removing organochlorine is ineffective in the prior art, possesses organochlorine and is converted into inorganic chlorine and absorbs the difunctional of inorganic chlorine simultaneously.
Description
Technical field
The invention belongs to liquid phase dechlorination technology field, and in particular to a kind of low temperature liquid phase antichlor and preparation method thereof and should
With.
Background technology
Reforming process has become the main path of production high-knock rating gasoline and aromatic hydrocarbons, while is also the weight of refinery hydrogen
Source is wanted, therefore, reformer is the stable important ring with Improve Efficiency of whole refinery's production.Yet with raw material and technique
Limit, can have a small amount of organochlorine and inorganic chlorine in reformate, these chlorides not only easily cause upstream device pipeline
Corrosion or blocking, but also the quality of reformate can be influenceed.In order to eliminate the influence of these chlorides, using adsorbent
Chlorine in removing reformate is the method that current refinery generally uses.
CN201410776492.3 discloses a kind of high chlorosity liquid phase antichlor and its preparation method and application.The antichlor
At after soluble copper salt, calcium salt, magnesium salts, barium salt etc. are impregnated on columned carbon molecular sieve by dry and stabilisation
Manage and obtain, the removing of inorganic chlorine suitable for oil product, be particularly suitable for removing hydrogen chloride in reformed oil.
CN201511020457.X discloses a kind of liquid phase antichlor and its preparation method and application, active component CuO,
CaO and KOH, carrier are modified activated carbon.Hydrogen chloride in oil product is removed by the synergy of three kinds of active materials, the liquid
The chlorosity of phase antichlor is up to more than 16%, removal precision as little as below 0.5ppm.CN201410806549.X discloses one kind
High chlorosity liquid phase antichlor and its preparation method and application, the antichlor is by active component and the composite crystalline structure of adjuvant component
Form, active component is at least one of magnesia, calcium oxide, magnesium carbonate, calcium carbonate, and adjuvant component is aluminum oxide or oxidation
Iron.The removing of antichlor inorganic chlorine suitable for oil product, especially removing hydrogen chloride in reformed oil.
CN201310491476.5 discloses a kind of antichlor for removing chlorion in Reformed Gasoline, and the antichlor has micropore
The complex carrier of structure-rich and a variety of dechlorination active materials composition, the active material include I A, II A and II B races element, institute
Complex carrier is stated to be made up of more than the variety carrier of 50nm and aperture 2nm-50nm and aperture less than 2nm aperture.The antichlor
The removal efficiency of Cl ions in Reformed Gasoline can be improved.
CN00130377.5 discloses a kind of high-temp solid dechlorinating agent and preparation method thereof, active component be calcium hydroxide,
Or calcium hydroxide and calcium carbonate or sodium carbonate and calcium carbonate.The antichlor active component content is higher, natural available for removing
Hydrogen chloride in the gases such as gas, naphtha, syngas for synthetic ammonia, hydrogen, but need to cause material gasification under hot conditions
In the case of use.
CN201110231908.X discloses a kind of high chlorosity type high-strength alumina antichlor, it is characterised in that it is by hydrogen
Aluminum oxide, sodium hydroxide composition, its composition by weight is 30~60 parts of aluminium hydroxide, 30~50 parts of sodium hydroxide, its optimum weight
Component is 55 parts of aluminum oxide, 45 parts of sodium hydroxide, is mixed to form colloid through precipitation, colloid is again through crystallization, washing, drying and roasting
Form.The antichlor is only applicable to adsorb the HCl in liquid phase such as naphtha.
The above antichlor is made up of alkali metal or alkaline-earth metal material substantially, there is preferable removing to hydrogen chloride
Effect, however it is then ineffective to organochlorine or do not take the removing problem of organochlorine into account at all.Also related in existing technology
And to organochlorine removing, as CN201210249253.3 discloses a kind of removal methods of chlorine-containing organic compounds in oil product,
But this method, using Batch Process mode, production capacity is limited, and has substantial amounts of waste water to produce.
CN201510140849.3 discloses a kind of oil product high performance dechloridizing agent, can effectively remove the organochlorine in oil product, but this is de-
The active component that chlorine agent uses is alkali metal simple substance or oxide, it is desirable to which whole reactor anhydrous and oxygen-free, use condition is excessively
Harshness, and it is limited using intermittent reaction production capacity.CN201310335392.2 discloses a kind of oil product antichlor, its
It is high to high concentration or low concentration HCl adsorption efficiencies under low temperature, and removal precision is high, chlorosity is up to more than 35%, but to organic
Chloride only has certain adsorption effect, and outlet content of organic chloride is still in more than 1.5ppm.CN201310434314.8 is by dechlorination
Agent and solvent are added to hydrocarbon fuel according to a certain percentage, then collect mixture distillation and obtain chloride relatively low product, work
Need to increase agitating heater and separated device in skill, add equipment and energy consumption investment.
In summary, how the simple and effective organochlorine removed in reformate is still a urgent problem to be solved.
The content of the invention
The technical problems to be solved by the invention are to be directed to above-mentioned the deficiencies in the prior art, there is provided a kind of low temperature liquid phase takes off
Chlorine agent.The antichlor perfect can solve the problems, such as that antichlor removing organochlorine is ineffective in the prior art, possesses organochlorine
It is converted into inorganic chlorine and absorbs the difunctional of inorganic chlorine simultaneously.
In order to solve the above technical problems, the technical solution adopted by the present invention is：A kind of low temperature liquid phase antichlor, its feature exist
In the antichlor is made up of the component B of component A and absorption on component A, after the component A is modified dose of modification
Activated carbon, the component B is sodium acetate or sodium citrate, and the mass ratio of the component A and component B are (4~9)：1, it is described
The mass content of modifying agent is 20%~35% in component A, and surplus is activated carbon；The low temperature refers to that the antichlor can be in temperature
Spend for dechlorination under conditions of 20 DEG C~50 DEG C.
Above-mentioned a kind of low temperature liquid phase antichlor, it is characterised in that the modifying agent is in component C, component D and component E
Any one or it is two or more, the component C is sodium hydroxide, potassium hydroxide or cesium hydroxide, and the component D is nitric acid
Sodium, potassium nitrate or cesium nitrate, the component E are sodium carbonate, potassium carbonate or cesium carbonate.
Above-mentioned a kind of low temperature liquid phase antichlor, it is characterised in that the modifying agent is potassium hydroxide and/or cesium nitrate.
In addition, present invention also offers a kind of method for preparing above-mentioned low temperature liquid phase antichlor, it is characterised in that this method
Comprise the following steps：
Step 1: activated carbon is impregnated in the aqueous solution containing modifying agent, under conditions of temperature is 40 DEG C~60 DEG C
After drying, 3~5h is calcined under conditions of being 400~500 DEG C in temperature, obtains component A；
Step 2: component A described in step 1 is impregnated in the aqueous solution containing component B, naturally dry or in temperature
After drying under conditions of 25~60 DEG C, low temperature liquid phase antichlor is obtained.
In addition, oily dechlorination is generated in catalytic reforming using above-mentioned low temperature liquid phase antichlor present invention also offers one kind
In application, it is characterised in that use catalytic reforming generation oil for feedstock oil, in 25 DEG C~50 DEG C of reaction temperature, raw material oil body
Product air speed is 0.1h-1~6h-1, will using the low temperature liquid phase antichlor under conditions of reaction pressure is 0.1MPa~3.0MPa
Chlorinity in feedstock oil is down to below 0.5ppm.
The present invention has advantages below compared with prior art：
1st, the antichlor that the present invention is researched and developed is made up of the component B of component A and absorption on component A, and the component A is
Activated carbon after modified dose of modification, the component B are sodium acetate or sodium citrate, and the present invention can utilize activated carbon
High adsorption by the uniform adsorption of carboxylate polymolecularity on activated carbon surface, when feedstock oil passes through antichlor bed, carboxylic
Hydrochlorate fully contacts with the chlorohydrocarbon in raw material and esterification generation ester and inorganic chlorine occurs, and it is opposite to avoid traditional solid-liquid two
The shortcomings that uneven low with mass-transfer efficiency should be mixed, esterification in fine chemistry industry is overcome and needs to use phase transfer catalyst
Drawback, while be compared to chlorohydrocarbon micro in feedstock oil, carboxylate is much excessive, from kinetically greatly having promoted ester
Change the progress of reaction.On the other hand, it also avoid needing using liquid phase interval removing organochlorine technology in existing dechlorination patent technique
The technical bottleneck of agitating and heating and separated workshop section is set in addition, simplifies technological process, is reduced investment outlay and operating cost；
2nd, antichlor of the present invention contains the alkali metals modified element such as sodium, potassium, caesium, by impregnating metal-modified member
Element is evenly distributed in carboxylate and chlorohydrocarbon in the alkali metal such as activated carbon surface, sodium, potassium, caesium inherently fine chemistry industry and occurred
The catalyst of esterification, these metal species can not only promote the generation of above-mentioned organochlorine conversion reaction, can also be straight
Inorganic chlorine caused by connecing removing organochlorine conversion, realize that the conversion absorption of antichlor is difunctional；On the other hand, the chlorine of generation is reacted
Compound such as cesium chloride, the progress to esterification also have catalytic action, mutually cooperate with so as to form one, mutually promote
Benign cycle reaction system has effectively promoted the progress of dechlorination reaction.
3rd, antichlor preparation method of the present invention is simple, possesses higher mechanical strength and higher chlorosity and dechlorination
Precision, while low temperature uses, and energy consumption can be greatly reduced and improve productivity effect.
The present invention is described in further detail with reference to embodiment.
Embodiment
Embodiment 1
The present embodiment antichlor is a kind of low temperature liquid phase antichlor that can be used under 20 DEG C~50 DEG C cryogenic conditions, its
By component A and adsorb component B on component A and form, the component A is the activated carbon after modified dose of modification, institute
It is sodium acetate to state component B, and the mass ratio of the component A and component B are 5：The mass content of modifying agent is in 1, the component A
30%, surplus is activated carbon；Modifying agent is potassium hydroxide and cesium nitrate.
The preparation method of the present embodiment low temperature liquid phase antichlor comprises the following steps：
Step 1: 116.67g activated carbons are impregnated in containing modifying agent (37.50g KOH and 12.50g CsNO3) water
In solution, after being dried under conditions of being 50 DEG C in temperature, 4h is calcined under conditions of being 450 DEG C in temperature, obtains component A；
Step 2: component A described in step 1 is impregnated in the aqueous solution containing 33.3g components B, after naturally dry,
Obtain low temperature liquid phase antichlor.
Utilize application of the present embodiment low temperature liquid phase antichlor in catalytic reforming generates oily dechlorination, it is characterised in that adopt
It is raw material with catalytic reforming generation oil, feedstock oil chlorinity is 6ppm, and wherein content of organic chloride is 3.6ppm, in fixed bed reaction
In device, 25 DEG C of reaction temperature, reformate volume space velocity is 3h-1, under conditions of reaction pressure is 2.0MPa, utilize the Low Temperature Liquid
Phase antichlor generates oil to catalytic reforming and carries out dechlorination processing, when the chlorinity in reactor outlet reformate is more than 0.5ppm
When, that is, think that antichlor bed has penetrated, analyze the chlorinity in now antichlor, the chlorosity that penetrates for obtaining antichlor is
11.52%.Thus illustrate that this low temperature liquid phase antichlor not only possesses organochlorine and is converted into inorganic chlorine and absorbs inorganic chlorine simultaneously
It is difunctional, it is also equipped with higher chlorosity and removal precision.
Embodiment 2
The present embodiment antichlor is a kind of low temperature liquid phase antichlor that can be used under 20 DEG C~50 DEG C cryogenic conditions, its
By component A and adsorb component B on component A and form, the component A is the activated carbon after modified dose of modification, institute
It is sodium acetate to state component B, and the mass ratio of the component A and component B are 5：The mass content of modifying agent is in 1, the component A
35%, surplus is activated carbon；Modifying agent is potassium carbonate and cesium nitrate.
The preparation method of the present embodiment low temperature liquid phase antichlor comprises the following steps：
Step 1: 108.33g activated carbons are impregnated in containing modifying agent (43.75g K2CO3With 14.58g CsNO3) water
In solution, after being dried under conditions of being 50 DEG C in temperature, 4h is calcined under conditions of being 450 DEG C in temperature, obtains component A；
Step 2: component A described in step 1 is impregnated in the aqueous solution containing 33.3g components B, after naturally dry,
Obtain low temperature liquid phase antichlor.
Utilize application of the present embodiment low temperature liquid phase antichlor in catalytic reforming generates oily dechlorination, it is characterised in that adopt
It is raw material with catalytic reforming generation oil, feedstock oil chlorinity is 6ppm, and wherein content of organic chloride is 3.6ppm, in fixed bed reaction
In device, 25 DEG C of reaction temperature, reformate volume space velocity is 3h-1, under conditions of reaction pressure is 2.0MPa, utilize the Low Temperature Liquid
Phase antichlor generates oil to catalytic reforming and carries out dechlorination processing, when the chlorinity in reactor outlet reformate is more than 0.5ppm
When, that is, think that antichlor bed has penetrated, analyze the chlorinity in now antichlor, the chlorosity that penetrates for obtaining antichlor is
11.15%.Thus illustrate that this low temperature liquid phase antichlor not only possesses organochlorine and is converted into inorganic chlorine and absorbs inorganic chlorine simultaneously
It is difunctional, it is also equipped with higher chlorosity and removal precision.
Embodiment 3
The present embodiment antichlor is a kind of low temperature liquid phase antichlor that can be used under 20 DEG C~50 DEG C cryogenic conditions, its
By component A and adsorb component B on component A and form, the component A is the activated carbon after modified dose of modification, institute
It is sodium acetate to state component B, and the mass ratio of the component A and component B are 4：The mass content of modifying agent is in 1, the component A
20%, surplus is activated carbon；Modifying agent is sodium hydroxide and cesium nitrate.
The preparation method of the present embodiment low temperature liquid phase antichlor comprises the following steps：
Step 1: 128.0g activated carbons are impregnated in containing modifying agent (24.0g NaOH and 8.0g CsNO3) the aqueous solution
In, after being dried under conditions of being 40 DEG C in temperature, 5h is calcined under conditions of being 500 DEG C in temperature, obtains component A；
Step 2: component A described in step 1 is impregnated in the aqueous solution containing 40g components B, after naturally dry, obtain
To low temperature liquid phase antichlor.
Utilize application of the present embodiment low temperature liquid phase antichlor in catalytic reforming generates oily dechlorination, it is characterised in that adopt
It is raw material with catalytic reforming generation oil, feedstock oil chlorinity is 6ppm, and wherein content of organic chloride is 3.6ppm, in fixed bed reaction
In device, 25 DEG C of reaction temperature, reformate volume space velocity is 3h-1, under conditions of reaction pressure is 3.0MPa, utilize the Low Temperature Liquid
Phase antichlor generates oil to catalytic reforming and carries out dechlorination processing, when the chlorinity in reactor outlet reformate is more than 0.5ppm
When, that is, think that antichlor bed has penetrated, analyze the chlorinity in now antichlor, the chlorosity that penetrates for obtaining antichlor is
9.36%.Thus illustrate that this low temperature liquid phase antichlor not only possesses organochlorine and is converted into inorganic chlorine and absorbs the double of inorganic chlorine simultaneously
Function, it is also equipped with higher chlorosity and removal precision.
Embodiment 4
The present embodiment antichlor is a kind of low temperature liquid phase antichlor that can be used under 20 DEG C~50 DEG C cryogenic conditions, its
By component A and adsorb component B on component A and form, the component A is the activated carbon after modified dose of modification, institute
It is sodium acetate to state component B, and the mass ratio of the component A and component B are 5：The mass content of modifying agent is in 1, the component A
30%, surplus is activated carbon；Modifying agent is potassium hydroxide and cesium carbonate.
The preparation method of the present embodiment low temperature liquid phase antichlor comprises the following steps：
Step 1: 116.67g activated carbons are impregnated in containing modifying agent (37.5g KOH and 12.5g Cs2CO3) it is water-soluble
In liquid, after being dried under conditions of being 60 DEG C in temperature, 5h is calcined under conditions of being 400 DEG C in temperature, obtains component A；
Step 2: component A described in step 1 is impregnated in the aqueous solution containing 33.3g components B, after naturally dry,
Obtain low temperature liquid phase antichlor.
Utilize application of the present embodiment low temperature liquid phase antichlor in catalytic reforming generates oily dechlorination, it is characterised in that adopt
It is raw material with catalytic reforming generation oil, feedstock oil chlorinity is 6ppm, and wherein content of organic chloride is 3.6ppm, in fixed bed reaction
In device, 25 DEG C of reaction temperature, reformate volume space velocity is 3h-1, under conditions of reaction pressure is 2.0MPa, utilize the Low Temperature Liquid
Phase antichlor generates oil to catalytic reforming and carries out dechlorination processing, when the chlorinity in reactor outlet reformate is more than 0.5ppm
When, that is, think that antichlor bed has penetrated, analyze the chlorinity in now antichlor, the chlorosity that penetrates for obtaining antichlor is
11.31%.Thus illustrate that this low temperature liquid phase antichlor not only possesses organochlorine and is converted into inorganic chlorine and absorbs inorganic chlorine simultaneously
It is difunctional, it is also equipped with higher chlorosity and removal precision.
Embodiment 5
The present embodiment antichlor is a kind of low temperature liquid phase antichlor that can be used under 20 DEG C~50 DEG C cryogenic conditions, its
By component A and adsorb component B on component A and form, the component A is the activated carbon after modified dose of modification, institute
It is sodium citrate to state component B, and the mass ratio of the component A and component B are 5：The mass content of modifying agent is in 1, the component A
30%, surplus is activated carbon；Modifying agent is potassium hydroxide and cesium carbonate.
The preparation method of the present embodiment low temperature liquid phase antichlor comprises the following steps：
Step 1: 116.67g activated carbons are impregnated in containing modifying agent (37.5g KOH and 12.5g Cs2CO3) it is water-soluble
In liquid, after being dried under conditions of being 50 DEG C in temperature, 3h is calcined under conditions of being 500 DEG C in temperature, obtains component A；
Step 2: component A described in step 1 is impregnated in the aqueous solution containing 33.3g components B, after naturally dry,
Obtain low temperature liquid phase antichlor.
Utilize application of the present embodiment low temperature liquid phase antichlor in catalytic reforming generates oily dechlorination, it is characterised in that adopt
It is raw material with catalytic reforming generation oil, feedstock oil chlorinity is 6ppm, and wherein content of organic chloride is 3.6ppm, in fixed bed reaction
In device, 50 DEG C of reaction temperature, reformate volume space velocity is 3h-1, under conditions of reaction pressure is 2.0MPa, utilize the Low Temperature Liquid
Phase antichlor generates oil to catalytic reforming and carries out dechlorination processing, when the chlorinity in reactor outlet reformate is more than 0.5ppm
When, that is, think that antichlor bed has penetrated, analyze the chlorinity in now antichlor, the chlorosity that penetrates for obtaining antichlor is
10.99%.Thus illustrate that this low temperature liquid phase antichlor not only possesses organochlorine and is converted into inorganic chlorine and absorbs inorganic chlorine simultaneously
It is difunctional, it is also equipped with higher chlorosity and removal precision.
Embodiment 6
The present embodiment antichlor is a kind of low temperature liquid phase antichlor that can be used under 20 DEG C~50 DEG C cryogenic conditions, its
By component A and adsorb component B on component A and form, the component A is the activated carbon after modified dose of modification, institute
It is sodium acetate to state component B, and the mass ratio of the component A and component B are 9：The mass content of modifying agent is in 1, the component A
30%, surplus is activated carbon；Modifying agent is potassium hydroxide.
The preparation method of the present embodiment low temperature liquid phase antichlor comprises the following steps：
It it is 60 DEG C in temperature Step 1: 126g activated carbons are impregnated in the aqueous solution containing modifying agent (54g KOH)
Under the conditions of dry after, temperature be 500 DEG C under conditions of be calcined 4h, obtain component A；
Step 2: component A described in step 1 is impregnated in the aqueous solution containing 20g components B, after naturally dry, obtain
To low temperature liquid phase antichlor.
Utilize application of the present embodiment low temperature liquid phase antichlor in catalytic reforming generates oily dechlorination, it is characterised in that adopt
It is raw material with catalytic reforming generation oil, feedstock oil chlorinity is 6ppm, and wherein content of organic chloride is 3.6ppm, in fixed bed reaction
In device, 50 DEG C of reaction temperature, reformate volume space velocity is 6h-1, under conditions of reaction pressure is 2.0MPa, utilize the Low Temperature Liquid
Phase antichlor generates oil to catalytic reforming and carries out dechlorination processing, when the chlorinity in reactor outlet reformate is more than 0.5ppm
When, that is, think that antichlor bed has penetrated, analyze the chlorinity in now antichlor, the chlorosity that penetrates for obtaining antichlor is
8.53%.Thus illustrate that this low temperature liquid phase antichlor not only possesses organochlorine and is converted into inorganic chlorine and absorbs the double of inorganic chlorine simultaneously
Function, it is also equipped with higher chlorosity and removal precision.
It is described above, only it is presently preferred embodiments of the present invention, not the present invention is imposed any restrictions.It is every according to invention skill
Any simple modification, change and equivalence change that art is substantially made to above example, still fall within technical solution of the present invention
Protection domain in.
Claims (5)
1. a kind of low temperature liquid phase antichlor, it is characterised in that the antichlor is by component A and adsorbs the component B groups on component A
It is the activated carbon after modified dose of modification into, the component A, the component B is sodium acetate or sodium citrate, the component
A and component B mass ratio are (4~9)：The mass content of modifying agent is 20%~35% in 1, the component A, and surplus is activity
Charcoal；The low temperature refers to that the antichlor being capable of the dechlorination under conditions of temperature is 20 DEG C~50 DEG C.
2. a kind of low temperature liquid phase antichlor according to claim 1, it is characterised in that the modifying agent is component C, component
In D and component E any one or it is two or more, the component C is sodium hydroxide, potassium hydroxide or cesium hydroxide, described group
It is sodium nitrate, potassium nitrate or cesium nitrate to divide D, and the component E is sodium carbonate, potassium carbonate or cesium carbonate.
3. a kind of low temperature liquid phase antichlor according to claim 1 or 2, it is characterised in that the modifying agent is hydroxide
Potassium and/or cesium nitrate.
A kind of 4. method for preparing low temperature liquid phase antichlor as claimed in claim 1 or 2, it is characterised in that this method include with
Lower step：
Step 1: activated carbon is impregnated in the aqueous solution containing modifying agent, dried under conditions of being 40 DEG C~60 DEG C in temperature
Afterwards, 3h~5h is calcined under conditions of being 400 DEG C~500 DEG C in temperature, obtains component A；
Step 2: component A described in step 1 is impregnated in the aqueous solution containing component B, naturally dry or be 25 in temperature
DEG C~60 DEG C under conditions of dry after, obtain low temperature liquid phase antichlor.
5. a kind of application using low temperature liquid phase antichlor as claimed in claim 1 or 2 in catalytic reforming generates oily dechlorination, its
It is characterised by, using catalytic reforming generation oil, in 25 DEG C~50 DEG C of reaction temperature, feedstock oil volume space velocity is for feedstock oil
0.1h-1~6h-1, under conditions of reaction pressure is 0.1MPa~3.0MPa, using the low temperature liquid phase antichlor by feedstock oil
Chlorinity be down to below 0.5ppm.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113426429A (en) * | 2021-06-30 | 2021-09-24 | 西安大望山化工科技有限公司 | Preparation method of dechlorinating agent |
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