CN114931927A - Adsorbent for adsorbing and separating aromatic hydrocarbons in gasoline and diesel oil and preparation method thereof - Google Patents
Adsorbent for adsorbing and separating aromatic hydrocarbons in gasoline and diesel oil and preparation method thereof Download PDFInfo
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- CN114931927A CN114931927A CN202210473567.5A CN202210473567A CN114931927A CN 114931927 A CN114931927 A CN 114931927A CN 202210473567 A CN202210473567 A CN 202210473567A CN 114931927 A CN114931927 A CN 114931927A
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- adsorbent
- acid
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- 239000003463 adsorbent Substances 0.000 title claims abstract description 63
- 150000004945 aromatic hydrocarbons Chemical class 0.000 title claims abstract description 58
- 239000002283 diesel fuel Substances 0.000 title claims abstract description 29
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 238000001179 sorption measurement Methods 0.000 claims abstract description 44
- 229910044991 metal oxide Inorganic materials 0.000 claims abstract description 38
- 150000004706 metal oxides Chemical class 0.000 claims abstract description 35
- 238000000926 separation method Methods 0.000 claims abstract description 34
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000002131 composite material Substances 0.000 claims abstract description 24
- 239000006185 dispersion Substances 0.000 claims abstract description 23
- 239000004115 Sodium Silicate Substances 0.000 claims abstract description 20
- 229910052911 sodium silicate Inorganic materials 0.000 claims abstract description 20
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical class [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000001914 filtration Methods 0.000 claims abstract description 19
- 238000005406 washing Methods 0.000 claims abstract description 19
- 229910052751 metal Chemical class 0.000 claims abstract description 18
- 239000002184 metal Chemical class 0.000 claims abstract description 18
- 238000002156 mixing Methods 0.000 claims abstract description 18
- 239000003513 alkali Substances 0.000 claims abstract description 15
- 239000002253 acid Substances 0.000 claims abstract description 12
- 150000007522 mineralic acids Chemical class 0.000 claims abstract description 11
- 238000001035 drying Methods 0.000 claims abstract description 10
- 239000003921 oil Substances 0.000 claims abstract description 9
- 150000003839 salts Chemical class 0.000 claims abstract description 8
- 238000003795 desorption Methods 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 6
- 229910052814 silicon oxide Inorganic materials 0.000 claims abstract description 5
- 230000002194 synthesizing effect Effects 0.000 claims abstract description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 40
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 24
- 238000003756 stirring Methods 0.000 claims description 23
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 21
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 18
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 17
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 16
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 15
- 238000010438 heat treatment Methods 0.000 claims description 15
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 13
- 230000032683 aging Effects 0.000 claims description 13
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 claims description 10
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 8
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 8
- UAEPNZWRGJTJPN-UHFFFAOYSA-N methylcyclohexane Chemical group CC1CCCCC1 UAEPNZWRGJTJPN-UHFFFAOYSA-N 0.000 claims description 8
- 229910017604 nitric acid Inorganic materials 0.000 claims description 8
- HQABUPZFAYXKJW-UHFFFAOYSA-N butan-1-amine Chemical compound CCCCN HQABUPZFAYXKJW-UHFFFAOYSA-N 0.000 claims description 7
- 150000007530 organic bases Chemical class 0.000 claims description 6
- OERNJTNJEZOPIA-UHFFFAOYSA-N zirconium nitrate Chemical compound [Zr+4].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O OERNJTNJEZOPIA-UHFFFAOYSA-N 0.000 claims description 6
- 235000019260 propionic acid Nutrition 0.000 claims description 5
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 claims description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 4
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 claims description 4
- GYNNXHKOJHMOHS-UHFFFAOYSA-N methyl-cycloheptane Natural products CC1CCCCCC1 GYNNXHKOJHMOHS-UHFFFAOYSA-N 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- QDZRBIRIPNZRSG-UHFFFAOYSA-N titanium nitrate Chemical compound [O-][N+](=O)O[Ti](O[N+]([O-])=O)(O[N+]([O-])=O)O[N+]([O-])=O QDZRBIRIPNZRSG-UHFFFAOYSA-N 0.000 claims description 4
- 150000001335 aliphatic alkanes Chemical class 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 150000007524 organic acids Chemical class 0.000 claims description 3
- DCKVFVYPWDKYDN-UHFFFAOYSA-L oxygen(2-);titanium(4+);sulfate Chemical compound [O-2].[Ti+4].[O-]S([O-])(=O)=O DCKVFVYPWDKYDN-UHFFFAOYSA-L 0.000 claims description 3
- RCIVOBGSMSSVTR-UHFFFAOYSA-L stannous sulfate Chemical compound [SnH2+2].[O-]S([O-])(=O)=O RCIVOBGSMSSVTR-UHFFFAOYSA-L 0.000 claims description 3
- IEXRMSFAVATTJX-UHFFFAOYSA-N tetrachlorogermane Chemical compound Cl[Ge](Cl)(Cl)Cl IEXRMSFAVATTJX-UHFFFAOYSA-N 0.000 claims description 3
- 229910000375 tin(II) sulfate Inorganic materials 0.000 claims description 3
- HPGGPRDJHPYFRM-UHFFFAOYSA-J tin(iv) chloride Chemical compound Cl[Sn](Cl)(Cl)Cl HPGGPRDJHPYFRM-UHFFFAOYSA-J 0.000 claims description 3
- 229910000348 titanium sulfate Inorganic materials 0.000 claims description 3
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 claims description 3
- ZXAUZSQITFJWPS-UHFFFAOYSA-J zirconium(4+);disulfate Chemical compound [Zr+4].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZXAUZSQITFJWPS-UHFFFAOYSA-J 0.000 claims description 3
- 229910021627 Tin(IV) chloride Inorganic materials 0.000 claims description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 2
- XHCLAFWTIXFWPH-UHFFFAOYSA-N [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] XHCLAFWTIXFWPH-UHFFFAOYSA-N 0.000 claims description 2
- YBMRDBCBODYGJE-UHFFFAOYSA-N germanium oxide Inorganic materials O=[Ge]=O YBMRDBCBODYGJE-UHFFFAOYSA-N 0.000 claims description 2
- PVADDRMAFCOOPC-UHFFFAOYSA-N oxogermanium Chemical compound [Ge]=O PVADDRMAFCOOPC-UHFFFAOYSA-N 0.000 claims description 2
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 claims description 2
- 229910001887 tin oxide Inorganic materials 0.000 claims description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 2
- 229910001935 vanadium oxide Inorganic materials 0.000 claims description 2
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 2
- DUNKXUFBGCUVQW-UHFFFAOYSA-J zirconium tetrachloride Chemical compound Cl[Zr](Cl)(Cl)Cl DUNKXUFBGCUVQW-UHFFFAOYSA-J 0.000 claims description 2
- 230000000274 adsorptive effect Effects 0.000 claims 5
- 150000007529 inorganic bases Chemical class 0.000 claims 2
- 239000002585 base Substances 0.000 claims 1
- 239000012065 filter cake Substances 0.000 description 18
- 238000011156 evaluation Methods 0.000 description 12
- 239000000499 gel Substances 0.000 description 12
- 239000000463 material Substances 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 7
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 description 5
- WZNFFVCEJNSSPV-UHFFFAOYSA-M [OH-].[Na+].CCCCN Chemical compound [OH-].[Na+].CCCCN WZNFFVCEJNSSPV-UHFFFAOYSA-M 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 238000007670 refining Methods 0.000 description 4
- 125000003118 aryl group Chemical group 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 229910002027 silica gel Inorganic materials 0.000 description 3
- 239000000741 silica gel Substances 0.000 description 3
- PZAGQUOSOTUKEC-UHFFFAOYSA-N acetic acid;sulfuric acid Chemical compound CC(O)=O.OS(O)(=O)=O PZAGQUOSOTUKEC-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 239000002808 molecular sieve Substances 0.000 description 2
- SSNBZPCCTUTRBD-UHFFFAOYSA-N propanoic acid;sulfuric acid Chemical compound CCC(O)=O.OS(O)(=O)=O SSNBZPCCTUTRBD-UHFFFAOYSA-N 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000012798 spherical particle Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- LYEWAIRXZWODSJ-UHFFFAOYSA-M [OH-].[K+].CCCCN Chemical compound [OH-].[K+].CCCCN LYEWAIRXZWODSJ-UHFFFAOYSA-M 0.000 description 1
- WJGAPUXHSQQWQF-UHFFFAOYSA-N acetic acid;hydrochloride Chemical compound Cl.CC(O)=O WJGAPUXHSQQWQF-UHFFFAOYSA-N 0.000 description 1
- IZQZNLBFNMTRMF-UHFFFAOYSA-N acetic acid;phosphoric acid Chemical compound CC(O)=O.OP(O)(O)=O IZQZNLBFNMTRMF-UHFFFAOYSA-N 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000008367 deionised water Chemical class 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- FADIYVNKNQZKMK-UHFFFAOYSA-N nitric acid;propanoic acid Chemical compound O[N+]([O-])=O.CCC(O)=O FADIYVNKNQZKMK-UHFFFAOYSA-N 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- XGFABUPTUPKRQI-UHFFFAOYSA-M potassium;n,n-diethylethanamine;hydroxide Chemical compound [OH-].[K+].CCN(CC)CC XGFABUPTUPKRQI-UHFFFAOYSA-M 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- ZGMWRQIARRVYDR-UHFFFAOYSA-M sodium;n,n-diethylethanamine;hydroxide Chemical compound [OH-].[Na+].CCN(CC)CC ZGMWRQIARRVYDR-UHFFFAOYSA-M 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical class O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- 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
- B01J20/103—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate comprising silica
-
- 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
-
- 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
-
- 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
- C10G25/06—Refining of hydrocarbon oils in the absence of hydrogen, with solid sorbents with moving sorbents or sorbents dispersed in the oil
- C10G25/08—Refining of hydrocarbon oils in the absence of hydrogen, with solid sorbents with moving sorbents or sorbents dispersed in the oil according to the "moving bed" method
-
- 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
- C10G2300/10—Feedstock materials
- C10G2300/1037—Hydrocarbon fractions
-
- 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
- C10G2400/00—Products obtained by processes covered by groups C10G9/00 - C10G69/14
- C10G2400/30—Aromatics
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The invention discloses an adsorbent for adsorbing and separating aromatic hydrocarbons in gasoline and diesel oil and a preparation method thereof, wherein the adsorbent consists of active oxides, and comprises active silicon oxide and high-dispersion metal oxides, the mass content of the metal oxides is 0.5-50%, and the preparation method of the adsorbent comprises the following steps: 1) synthesizing oxide gel by taking sodium silicate, inorganic acid and metal salt as raw materials, and then mixing and dissolving the completely washed oxide gel and inorganic-organic composite alkali to obtain high-dispersion metal oxide sol; 2) mixing the high-dispersion metal oxide sol with inorganic-organic composite acid to obtain active gel; 3) and filtering, washing, drying and roasting the active gel to obtain the adsorbent for adsorbing and separating the aromatic hydrocarbon in the gasoline and diesel oil. The adsorbent is applied to a simulated moving bed aromatic hydrocarbon adsorption separation process, the solvent-oil ratio is less than 1.5, and the desorption/adsorption speed is less than 1.2.
Description
Technical Field
The invention relates to an adsorbent for adsorbing and separating aromatic hydrocarbons in gasoline and diesel oil and a preparation method thereof.
Background
Through the continuous development in recent years, although the refining industry in China becomes the national economic life line and safe pillar industry, the refining industry in China has the problems of excessive productivity, serious product homogenization, insufficient enterprise development and innovation, high environmental protection pressure, severe foreign market competition and the like, and how to improve the quality and improve the efficiency, increase the yield of high-quality chemicals and realize the sustainable development of enterprises becomes the urgent need to be solved by the refining enterprises. The 'oil, alkene and arene are preferably used as arene' which are the targets pursued by various large refining enterprises, but the overall technical level is still not high, the innovation capability is poor, the technical content and the additional value of the product are low, and the maximization and the reasonable utilization of the oil value are not really realized.
The gasoline and diesel are subjected to adsorption separation through a Simulated Moving Bed (SMB) to obtain high-purity aromatic hydrocarbon and high-purity non-aromatic hydrocarbon components, molecular management of the gasoline and diesel components can be realized, market demand changes can be responded in a more targeted manner, subsequent aromatic hydrocarbon and non-aromatic hydrocarbon conversion processes can be coupled, directional conversion of the gasoline and diesel to chemical products is realized, and economic benefits are improved. The SMB adsorption separation process needs spherical particle adsorbent in a certain size range, and the formed adsorbent contains a large amount of binder, so that the problems of small adsorption capacity, low adsorption rate and poor adsorption effect can be caused.
Patent CN106140078B discloses a preparation method of a bimetallic aromatic adsorbent, which is a spherical particle prepared from sodium silicate, inorganic acid, deionized water and metal salt as raw materials, wherein the metal comprises alkaline earth metal and transition metal, and can effectively adsorb aromatic hydrocarbon in solvent naphtha, and the aromatic hydrocarbon removal rate is greater than 95%, so that the bimetallic aromatic adsorbent is suitable for adsorption and separation of aromatic hydrocarbon in high-boiling-point solvent naphtha. Patent CN105536695B discloses an adsorbent for adsorbing and separating polycyclic aromatic hydrocarbons and a preparation method thereof, wherein the adsorbent is composed of a Y molecular sieve carrier and metal ions exchanged on the Y molecular sieve carrier according to a specific sequence, the adsorbent has strong adsorption capacity on polycyclic aromatic hydrocarbons, can effectively adsorb and separate polycyclic aromatic hydrocarbons in diesel, and the removal rate can reach 80%. The patent CN105289466B discloses an adsorbent for adsorbing and separating polycyclic aromatic hydrocarbons in diesel oil and a preparation method thereof, wherein the adsorbent comprises silica gel with adjustable pore size or modified silica gel loaded with metal, the loaded metal is one or more of Cu, Ni, Al, Fe, Co, Cr, Ba and Ag, and the adsorbent has strong adsorption capacity on polycyclic aromatic hydrocarbons in diesel oil, high selectivity and can be regenerated for repeated use.
The aromatic hydrocarbon adsorbent mainly solves the problem of aromatic hydrocarbon adsorption separation purity, but the dosage of the adsorbent for adsorption separation is larger, the aromatic hydrocarbon desorption speed is slow, the energy consumption for adsorption separation is high, and the economic benefit of an industrial application device can be reduced.
Disclosure of Invention
The invention aims to solve the technical problems that the desorption speed of aromatic hydrocarbon in an adsorbent is low, the dosage of a desorbent is large in the application process of a gasoline and diesel oil aromatic hydrocarbon adsorbent, and the separation energy consumption is high, and provides the adsorbent for adsorbing and separating the aromatic hydrocarbon in the gasoline and diesel oil and a preparation method thereof, wherein the adsorbent has an aromatic hydrocarbon adsorption active center with a high-connectivity silica-metal oxide framework, the adsorbent has the application of adsorbing and separating the aromatic hydrocarbon in the gasoline and diesel oil, the adsorbent-oil ratio (desorbent/raw oil) is less than 1.5, and the desorption/adsorption speed is less than 1.2.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention provides a preparation method of an adsorbent for adsorbing and separating aromatic hydrocarbons in gasoline and diesel oil, which comprises the following steps:
1) synthesizing oxide gel by taking sodium silicate, metal salt and inorganic acid as raw materials, adjusting the pH value to be 5-12, then filtering and washing, adding the oxide gel into an organic-inorganic composite alkali solution, adjusting the pH value to be more than 10, heating and stirring the solution until the solution is dissolved, depolymerizing agglomerated metal, and re-coordinating metal atoms and silicon atoms to obtain high-dispersion metal oxide sol;
2) mixing the high-dispersion metal oxide sol with organic-inorganic composite acid, adjusting the pH value to be less than 2.5, improving the connectivity of a silicon oxide-metal oxide framework, and then heating and aging to obtain active oxide gel;
3) filtering, washing, drying and roasting the active oxide gel to obtain the adsorbent for adsorbing and separating the aromatic hydrocarbon in the gasoline and diesel oil;
the adsorbent consists of active oxides, including active silicon oxide and high-dispersion metal oxides, wherein the mass content of the metal oxides is 0.5-50%, and the metal oxides are one of germanium oxide, tin oxide, titanium oxide, zirconium oxide, manganese oxide and vanadium oxide.
In the technical scheme of the preparation method of the adsorbent, the mass fraction of silicon dioxide in the sodium silicate in the step 1) is 5-30%; the metal salt is one of germanium chloride, stannic chloride, stannous sulfate, titanium chloride, titanium nitrate, titanium sulfate, zirconium chloride, zirconium nitrate and zirconium sulfate; the inorganic acid is one of hydrochloric acid, nitric acid, sulfuric acid and phosphoric acid, and the mass fraction is 5-20%; the organic-inorganic composite alkali comprises 5-20% of the mass fraction, the inorganic alkali is one of sodium hydroxide and potassium hydroxide, the organic alkali is one of triethylamine and n-butylamine, and the mass ratio of the inorganic alkali to the organic alkali is as follows: organic base ═ 1: (0.1-5), and the heating temperature is preferably 50-100 ℃.
In the aromatic adsorption preparation method, the mass fraction of the organic-inorganic composite acid in the step 2) is 5-20%, the inorganic acid is one of hydrochloric acid, nitric acid, sulfuric acid and phosphoric acid, the organic acid is one of acetic acid and propionic acid, and the mass ratio of the inorganic acid to the organic acid is as follows: organic base ═ 1: (0.1-5), wherein the aging temperature is 20-80 ℃, and the aging time is 1-20 h.
The invention also provides an adsorbent for adsorbing and separating aromatic hydrocarbons in gasoline and diesel oil, which is obtained by the preparation method.
Further, the invention also provides application of the adsorbent in a process for adsorbing and separating aromatic hydrocarbon in gasoline and diesel oil. The process for adsorbing and separating aromatic hydrocarbons in gasoline and diesel oil preferably comprises a fixed bed adsorption separation process, a multi-tower parallel adsorption separation process and a simulated moving bed adsorption separation process.
In the application of the adsorbent in adsorption separation of aromatic hydrocarbons in gasoline and diesel oil, the simulated moving bed adsorption separation process is a countercurrent simulated moving bed adsorption separation process, an adsorption bed layer is 8-24 layers, preferably 8-16 layers, the adsorption separation temperature is 40-120 ℃, preferably 50-80 ℃, and a desorbent is a mixture of alkane and aromatic hydrocarbons, preferably methylcyclohexane and toluene, wherein the mass fraction of the toluene is 10-50%.
In the application of the adsorbent in adsorption separation of aromatic hydrocarbon in gasoline and diesel oil, the adsorbent is preferably used in the process of adsorption separation of aromatic hydrocarbon in gasoline and diesel oil by the simulated moving bed, the purity of aromatic hydrocarbon components of the product is more than 98%, the purity of non-aromatic hydrocarbon components is more than 98%, the solvent-oil ratio is less than 1.5, and the desorption/adsorption speed is less than 1.2.
The invention has the beneficial effects that: by applying the adsorbent in adsorption separation of aromatic hydrocarbons in gasoline and diesel oil, the separation energy consumption is reduced by 20% compared with the conventional metal modified silicon oxide adsorbent according to the calculation of the reduction range of the adsorbent-oil ratio.
Detailed Description
The technical solution of the present invention is further described below with reference to the following examples, but is not limited to these examples.
The evaluation performance data of the adsorbents in the examples were measured by the following methods: gasoline and diesel oil are used as raw materials, and the aromatic hydrocarbon content of the fraction section is 15-70%. The adsorbent is filled into a simulated moving bed, the aromatic hydrocarbon is separated by adsorption into a countercurrent simulated moving bed, the adsorption bed layer is 8-24 layers, preferably 8-16 layers, the adsorption separation temperature is 40-120 ℃, preferably 50-80 ℃, the desorbent is a mixture of alkane and aromatic hydrocarbon, preferably methylcyclohexane and toluene, wherein the mass fraction of the toluene is 10-50%. Two materials are extracted from the simulated moving bed, one material is rich in aromatic hydrocarbon components, the other material is rich in non-aromatic hydrocarbon components, and the purity and desorption ratio of the two materials are analyzed.
Example 1
(1) Formation of highly dispersed metal oxide sol: preparing 10kg of a sodium silicate solution with the mass fraction of 12% and a proper amount of a dilute sulfuric acid solution with the mass fraction of 15%, dissolving 14.8g of germanium chloride into the dilute sulfuric acid solution, then slowly adding the dilute sulfuric acid solution into the sodium silicate solution, violently stirring in the adding process, adjusting the pH value to 7, then filtering and washing to obtain a filter cake, and then mixing the filter cake with a sodium hydroxide-triethylamine composite alkali solution with the mass fraction of 5%, wherein the mass ratio of the sodium hydroxide to the triethylamine is as follows: and (3) regulating the pH value to be more than 10 by triethylamine to be 1:2, heating to 50 ℃, and stirring to dissolve to obtain the high-dispersion metal oxide sol.
(2) Forming an activated silica gel; preparing a proper amount of sulfuric acid-acetic acid composite acid solution with the mass fraction of 5%, wherein the mass ratio of sulfuric acid: and (2) mixing acetic acid with the high-dispersion metal oxide sol obtained in the step (1) at a ratio of 1:5, adjusting the pH value to be less than 2.5, heating to 50 ℃, stirring and aging for 12 hours to obtain the activated silica gel.
(3) And (3) filtering and washing the active oxide gel obtained in the step (2), drying at 150 ℃ for 12h, and roasting at 550 ℃ for 4h to obtain the adsorbent for adsorbing and separating aromatic hydrocarbons in gasoline and diesel.
(4) Evaluation of the adsorbent: the method comprises the steps of taking hydrogenation catalytic diesel as a raw material, filling an adsorbent into a simulated moving bed with the mass fraction of aromatic hydrocarbon components being 30.5%, carrying out adsorption separation on the aromatic hydrocarbon into a countercurrent simulated moving bed adsorption separation process, wherein an adsorption bed layer is 12 layers, the adsorption separation temperature is 60 ℃, and desorbing agents of methylcyclohexane and toluene, wherein the mass fraction of the toluene is 20%. Two materials are extracted from the simulated moving bed, one material is rich in aromatic hydrocarbon components, the other material is rich in non-aromatic hydrocarbon components, and the purity and the solvent-oil ratio of the two materials are analyzed. The evaluation results are shown in Table 1.
Example 2
(1) Formation of highly dispersed metal oxide sols: preparing 10kg of a sodium silicate solution with the mass fraction of 12% and a proper amount of a dilute hydrochloric acid solution with the mass fraction of 15%, dissolving 207.4g of tin chloride into the dilute hydrochloric acid solution, then slowly adding the dilute hydrochloric acid solution into the sodium silicate solution, violently stirring in the adding process, adjusting the pH value to 8, then filtering and washing to obtain a filter cake, and then mixing the filter cake with a sodium hydroxide-n-butylamine composite alkali solution with the mass fraction of 10%, wherein the mass ratio of the sodium hydroxide to the filter cake is as follows: adjusting the pH value to be more than 10, heating to 80 ℃, and stirring to dissolve to obtain the high-dispersion metal oxide sol, wherein the n-butylamine is 1: 0.1.
(2) Forming an activated silica gel; preparing a proper amount of hydrochloric acid-acetic acid composite acid solution with the mass fraction of 10%, wherein the mass ratio of hydrochloric acid: and (2) mixing acetic acid which is 1:0.1 with the high-dispersion metal oxide sol obtained in the step (1), adjusting the pH value to be less than 2.5, heating to 80 ℃, stirring and aging for 1 hour to obtain the active silica gel.
(3) And (3) filtering and washing the active oxide gel obtained in the step (2), drying at 120 ℃ for 12h, and roasting at 500 ℃ for 6h to obtain the adsorbent for adsorbing and separating aromatic hydrocarbons in gasoline and diesel.
(4) Evaluation of adsorbent: same as in example 1.
Example 3
(1) Formation of highly dispersed metal oxide sols: preparing 10kg of a sodium silicate solution with the mass fraction of 12% and a proper amount of a dilute nitric acid solution with the mass fraction of 15%, dissolving 170.9g of stannous sulfate into the dilute nitric acid solution, then slowly adding the dilute nitric acid solution into the sodium silicate solution, violently stirring in the adding process, adjusting the pH value to 10, then filtering and washing to obtain a filter cake, and then mixing the filter cake with a potassium hydroxide-triethylamine composite alkali solution with the mass fraction of 15%, wherein the mass ratio of potassium hydroxide to potassium hydroxide is as follows: and (3) regulating the pH value to be more than 10 by triethylamine being 1:5, heating to 80 ℃, and stirring to dissolve to obtain the high-dispersion metal oxide sol.
(2) Forming an activated silica gel; preparing a proper amount of nitric acid-propionic acid composite acid solution with the mass fraction of 10%, wherein the mass ratio of nitric acid: and (2) mixing propionic acid with the high-dispersion metal oxide sol obtained in the step (1) at a ratio of 1:1, adjusting the pH value to be less than 2.5, adjusting the temperature to 20 ℃, stirring and aging for 24 hours to obtain the activated silica gel.
(3) And (3) filtering and washing the active oxide gel obtained in the step (2), drying at 150 ℃ for 12h, and roasting at 550 ℃ for 4h to obtain the adsorbent for adsorbing and separating aromatic hydrocarbons in gasoline and diesel oil.
(4) Evaluation of adsorbent: same as in example 1.
Example 4
(1) Formation of highly dispersed metal oxide sols: preparing 10kg of a sodium silicate solution with the mass fraction of 12% and a proper amount of a dilute phosphoric acid solution with the mass fraction of 15%, dissolving 853.6g of titanium chloride into the dilute phosphoric acid solution, then slowly adding the dilute phosphoric acid solution into the sodium silicate solution, violently stirring in the adding process, adjusting the pH value to 6, then filtering and washing to obtain a filter cake, and mixing the filter cake with a potassium hydroxide-n-butylamine composite alkali solution with the mass fraction of 20%, wherein the mass ratio of potassium hydroxide to potassium hydroxide is as follows: and (3) adjusting the pH value to be more than 10, heating to 100 ℃, and stirring to dissolve to obtain the high-dispersion metal oxide sol, wherein the n-butylamine is 1: 1.
(2) Forming an activated silica gel; preparing a proper amount of phosphoric acid-acetic acid composite acid solution with the mass fraction of 20%, wherein the mass ratio of phosphoric acid: and (2) mixing acetic acid (1: 1) with the high-dispersion metal oxide sol obtained in the step (1), adjusting the pH value to be less than 2.5, adjusting the temperature to 80 ℃, stirring and aging for 6 hours to obtain the active silica gel.
(3) And (3) filtering and washing the active oxide gel obtained in the step (2), drying at 150 ℃ for 12h, and roasting at 550 ℃ for 4h to obtain the adsorbent for adsorbing and separating aromatic hydrocarbons in gasoline and diesel oil.
(4) Evaluation of adsorbent: same as in example 1.
Example 5
(1) Formation of highly dispersed metal oxide sols: preparing 10kg of a sodium silicate solution with the mass fraction of 12% and a proper amount of a dilute sulfuric acid solution with the mass fraction of 15%, dissolving 1.8kg of titanium sulfate into the dilute sulfuric acid solution, then slowly adding the dilute sulfuric acid solution into the sodium silicate solution, violently stirring in the adding process, adjusting the pH value to 7, then filtering and washing to obtain a filter cake, and mixing the filter cake with a sodium hydroxide-n-butylamine composite alkali solution with the mass fraction of 20%, wherein the mass ratio of the sodium hydroxide to the filter cake is as follows: adjusting the pH value to be more than 10, heating to 100 ℃, and stirring to dissolve to obtain the high-dispersion metal oxide sol, wherein the n-butylamine is 1: 0.5.
(2) Forming an activated silica gel; preparing a proper amount of sulfuric acid-propionic acid composite acid solution with the mass fraction of 20%, wherein the mass ratio of sulfuric acid: and (2) mixing propionic acid with the high-dispersion metal oxide sol obtained in the step (1) at a ratio of 1:5, adjusting the pH value to be less than 2.5, adjusting the temperature to 80 ℃, stirring and aging for 12 hours to obtain the activated silica gel.
(3) And (3) filtering and washing the active oxide gel obtained in the step (2), drying at 120 ℃ for 12h, and roasting at 500 ℃ for 8h to obtain the adsorbent for adsorbing and separating aromatic hydrocarbons in gasoline and diesel oil.
(4) Evaluation of the adsorbent: same as in example 1.
Example 6
(1) Formation of highly dispersed metal oxide sols: preparing 10kg of a sodium silicate solution with the mass fraction of 12% and a proper amount of a dilute sulfuric acid solution with the mass fraction of 15%, dissolving 276.9g of zirconium sulfate into the dilute sulfuric acid solution, then slowly adding the dilute sulfuric acid solution into the sodium silicate solution, violently stirring in the adding process, adjusting the pH value to 10, then filtering and washing to obtain a filter cake, and mixing the filter cake with a sodium hydroxide-n-butylamine composite alkali solution with the mass fraction of 10%, wherein the mass ratio of the sodium hydroxide to the filter cake is as follows: adjusting the pH value to be more than 10, heating to 80 ℃, and stirring to dissolve to obtain the high-dispersion metal oxide sol, wherein the n-butylamine is 1: 0.5.
(2) Forming an activated silica gel; preparing a proper amount of sulfuric acid-propionic acid composite acid solution with the mass fraction of 10%, wherein the mass ratio of sulfuric acid: and (2) mixing propionic acid with the high-dispersion metal oxide sol obtained in the step (1) at a ratio of 1:0.1, adjusting the pH value to be less than 2.5, adjusting the temperature to 60 ℃, stirring and aging for 12 hours to obtain the activated silica gel.
(3) And (3) filtering and washing the active oxide gel obtained in the step (2), drying at 120 ℃ for 12h, and roasting at 500 ℃ for 4h to obtain the adsorbent for adsorbing and separating aromatic hydrocarbons in gasoline and diesel oil.
(4) Evaluation of the adsorbent: same as in example 1.
Example 7
(1) Formation of highly dispersed metal oxide sols: preparing 10kg of a sodium silicate solution with the mass fraction of 12% and a proper amount of a dilute sulfuric acid solution with the mass fraction of 15%, dissolving 418.2g of zirconium nitrate into the dilute sulfuric acid solution, then slowly adding the dilute sulfuric acid solution into the sodium silicate solution, violently stirring in the adding process, adjusting the pH value to 10, then filtering and washing to obtain a filter cake, and mixing the filter cake with a sodium hydroxide-n-butylamine composite alkali solution with the mass fraction of 10%, wherein the mass ratio of the sodium hydroxide to the filter cake is as follows: adjusting the pH value to be more than 10, heating to 80 ℃, and stirring to dissolve to obtain the high-dispersion metal oxide sol, wherein the n-butylamine is 1: 0.5.
(2) Forming an activated silica gel; preparing a proper amount of sulfuric acid-acetic acid composite acid solution with the mass fraction of 10%, wherein the mass ratio of sulfuric acid: acetic acid 1: and 2, mixing the active silicon oxide sol with the high-dispersion metal oxide sol obtained in the step 1, adjusting the pH value to be less than 2.5, adjusting the temperature to 60 ℃, stirring and aging for 12 hours to obtain the active silicon oxide gel.
(3) And (3) filtering and washing the active oxide gel obtained in the step (2), drying at 120 ℃ for 24h, and roasting at 600 ℃ for 4h to obtain the adsorbent for adsorbing and separating aromatic hydrocarbons in gasoline and diesel.
(4) Evaluation of adsorbent: same as in example 1.
Comparative example 1
The silica adsorbent prepared by impregnating and supporting with a metal salt had the same metal loading as in example 1 and the adsorbent evaluation as in example 1.
Comparative example 2
The silica adsorbent prepared by impregnating and supporting with a metal salt had the same metal loading as in example 2 and the adsorbent evaluation as in example 1.
TABLE 1 evaluation results of adsorbents
Claims (10)
1. A preparation method of an adsorbent for adsorbing and separating aromatic hydrocarbons in gasoline and diesel oil is characterized by comprising the following steps:
1) synthesizing oxide gel by taking sodium silicate, metal salt and inorganic acid as raw materials, adjusting the pH value to be 5-12, then filtering and washing, adding the oxide gel into an inorganic-organic composite alkali solution, adjusting the pH value to be more than 10, heating and stirring the solution until the solution is dissolved, depolymerizing agglomerated metal, and re-coordinating metal atoms and silicon atoms to obtain high-dispersion metal oxide sol;
2) mixing the high-dispersion metal oxide sol with inorganic organic composite acid, adjusting the pH value to be less than 2.5, improving the connectivity of a silicon oxide-metal oxide framework, and then heating and aging to obtain active oxide gel;
3) filtering, washing, drying and roasting the active oxide gel to obtain an adsorbent for adsorbing and separating aromatic hydrocarbons in gasoline and diesel oil;
the adsorbent for adsorbing and separating the aromatic hydrocarbon in the gasoline and diesel oil consists of active oxides, wherein the active oxides comprise active silicon oxide and high-dispersion metal oxides, the mass content of the metal oxides is 0.5-50%, and the metal oxides are one of germanium oxide, tin oxide, titanium oxide, zirconium oxide, manganese oxide and vanadium oxide.
2. The preparation method according to claim 1, characterized in that the mass fraction of silica in the sodium silicate in the step 1) is 5-30%; the metal salt is one of germanium chloride, stannic chloride, stannous sulfate, titanium chloride, titanium nitrate, titanium sulfate, zirconium chloride, zirconium nitrate and zirconium sulfate; the inorganic acid is one of hydrochloric acid, nitric acid, sulfuric acid and phosphoric acid, and the mass fraction is 5-20%; the inorganic-organic composite base has the mass fraction of 5-20%, the inorganic base is one of sodium hydroxide and potassium hydroxide, the organic base is one of triethylamine and n-butylamine, and the mass ratio of the inorganic base to the organic base is as follows: organic base ═ 1: (0.1-5).
3. The method according to claim 1, wherein the heating temperature in step 1) is 50 to 100 ℃.
4. The preparation method according to claim 1, wherein the inorganic-organic composite acid in the step 2) has a mass fraction of 5-20%, the inorganic acid is one of hydrochloric acid, nitric acid, sulfuric acid and phosphoric acid, the organic acid is one of acetic acid and propionic acid, and the mass ratio of the inorganic acid to the inorganic acid is: organic base ═ 1: (0.1-5), wherein the aging temperature is 20-80 ℃, and the aging time is 1-20 h.
5. An adsorbent for adsorbing and separating aromatic hydrocarbons in gasoline and diesel oil, which is obtained by the preparation method of claim 1.
6. Use of the adsorbent of claim 5 in a process for adsorptive separation of aromatics from gasoline and diesel.
7. The application of claim 6, wherein the process for adsorptive separation of aromatics in gasoline and diesel oil is at least one of a fixed bed adsorptive separation process, a multi-tower parallel adsorptive separation process and a simulated moving bed adsorptive separation process.
8. The use according to claim 7, wherein the simulated moving bed adsorption separation process is a counter-current simulated moving bed adsorption separation process, the adsorption bed layer is 8-24 layers, the adsorption separation temperature is 40-120 ℃, and the desorbent is a mixture of alkane and aromatic hydrocarbon.
9. The application of claim 8, wherein the simulated moving bed adsorption separation process is a countercurrent simulated moving bed adsorption separation process, the adsorption bed layer is 8-16 layers, the adsorption separation temperature is 50-80 ℃, and the desorbent is methylcyclohexane and toluene, wherein the mass fraction of the toluene is 10-50%.
10. The application of claim 7, wherein the product purity of aromatic hydrocarbon components is more than 98%, the purity of non-aromatic hydrocarbon components is more than 98%, the solvent-oil ratio is less than 1.5, and the desorption/adsorption speed is less than 1.2.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118022701A (en) * | 2024-04-11 | 2024-05-14 | 齐鲁工业大学(山东省科学院) | Small-pore silica gel clarifying agent and preparation method and application thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1094798A (en) * | 1965-05-04 | 1967-12-13 | Grace W R & Co | Process for the production of microspheroidal silica |
| US6150300A (en) * | 1996-08-14 | 2000-11-21 | Phillips Petroleum Company | Process to produce sorbents |
| CN105289466A (en) * | 2015-12-11 | 2016-02-03 | 中国海洋石油总公司 | Absorbent for absorbing and separating polyaromatic hydrocarbon in diesel and preparation method thereof |
| CN106140078A (en) * | 2016-06-30 | 2016-11-23 | 中国海洋石油总公司 | A kind of preparation method of bimetallic aromatics absorption agent |
| CN109420475A (en) * | 2017-08-23 | 2019-03-05 | 中国石油化工股份有限公司 | A kind of adsorbent and preparation method thereof for adsorbing aromatic hydrocarbon substance |
-
2022
- 2022-05-04 CN CN202210473567.5A patent/CN114931927B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1094798A (en) * | 1965-05-04 | 1967-12-13 | Grace W R & Co | Process for the production of microspheroidal silica |
| US6150300A (en) * | 1996-08-14 | 2000-11-21 | Phillips Petroleum Company | Process to produce sorbents |
| CN105289466A (en) * | 2015-12-11 | 2016-02-03 | 中国海洋石油总公司 | Absorbent for absorbing and separating polyaromatic hydrocarbon in diesel and preparation method thereof |
| CN106140078A (en) * | 2016-06-30 | 2016-11-23 | 中国海洋石油总公司 | A kind of preparation method of bimetallic aromatics absorption agent |
| CN109420475A (en) * | 2017-08-23 | 2019-03-05 | 中国石油化工股份有限公司 | A kind of adsorbent and preparation method thereof for adsorbing aromatic hydrocarbon substance |
Non-Patent Citations (1)
| Title |
|---|
| 关媛;林西平;邬国英;魏科年;宋友良;: "原位溶胶-凝胶法制备深度加氢脱芳烃催化剂NiO-MoO_3/SiO_2-Al_2O_3-TiO_2", 石油学报(石油加工), no. 03, pages 274 - 280 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118022701A (en) * | 2024-04-11 | 2024-05-14 | 齐鲁工业大学(山东省科学院) | Small-pore silica gel clarifying agent and preparation method and application thereof |
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