EP2582626A1 - Composition zéolithique uzm-35, son procédé d'élaboration et procédés - Google Patents

Composition zéolithique uzm-35, son procédé d'élaboration et procédés

Info

Publication number
EP2582626A1
EP2582626A1 EP10853784.6A EP10853784A EP2582626A1 EP 2582626 A1 EP2582626 A1 EP 2582626A1 EP 10853784 A EP10853784 A EP 10853784A EP 2582626 A1 EP2582626 A1 EP 2582626A1
Authority
EP
European Patent Office
Prior art keywords
composition
uzm
zeolite
mole ratio
value
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP10853784.6A
Other languages
German (de)
English (en)
Other versions
EP2582626A4 (fr
Inventor
Jaime G. Moscoso
Deng-Yang Jan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honeywell UOP LLC
Original Assignee
UOP LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by UOP LLC filed Critical UOP LLC
Publication of EP2582626A1 publication Critical patent/EP2582626A1/fr
Publication of EP2582626A4 publication Critical patent/EP2582626A4/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J29/00Catalysts comprising molecular sieves
    • B01J29/04Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/80Mixtures of different zeolites
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J29/00Catalysts comprising molecular sieves
    • B01J29/04Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/70Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B39/00Compounds having molecular sieve and base-exchange properties, e.g. crystalline zeolites; Their preparation; After-treatment, e.g. ion-exchange or dealumination
    • C01B39/02Crystalline aluminosilicate zeolites; Isomorphous compounds thereof; Direct preparation thereof; Preparation thereof starting from a reaction mixture containing a crystalline zeolite of another type, or from preformed reactants; After-treatment thereof
    • C01B39/36Pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B39/00Compounds having molecular sieve and base-exchange properties, e.g. crystalline zeolites; Their preparation; After-treatment, e.g. ion-exchange or dealumination
    • C01B39/02Crystalline aluminosilicate zeolites; Isomorphous compounds thereof; Direct preparation thereof; Preparation thereof starting from a reaction mixture containing a crystalline zeolite of another type, or from preformed reactants; After-treatment thereof
    • C01B39/46Other types characterised by their X-ray diffraction pattern and their defined composition
    • C01B39/48Other types characterised by their X-ray diffraction pattern and their defined composition using at least one organic template directing agent
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2/00Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms
    • C07C2/54Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition of unsaturated hydrocarbons to saturated hydrocarbons or to hydrocarbons containing a six-membered aromatic ring with no unsaturation outside the aromatic ring
    • C07C2/56Addition to acyclic hydrocarbons
    • C07C2/58Catalytic processes
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2/00Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms
    • C07C2/54Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition of unsaturated hydrocarbons to saturated hydrocarbons or to hydrocarbons containing a six-membered aromatic ring with no unsaturation outside the aromatic ring
    • C07C2/64Addition to a carbon atom of a six-membered aromatic ring
    • C07C2/66Catalytic processes
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C6/00Preparation of hydrocarbons from hydrocarbons containing a different number of carbon atoms by redistribution reactions
    • C07C6/08Preparation of hydrocarbons from hydrocarbons containing a different number of carbon atoms by redistribution reactions by conversion at a saturated carbon-to-carbon bond
    • C07C6/12Preparation of hydrocarbons from hydrocarbons containing a different number of carbon atoms by redistribution reactions by conversion at a saturated carbon-to-carbon bond of exclusively hydrocarbons containing a six-membered aromatic ring
    • C07C6/123Preparation of hydrocarbons from hydrocarbons containing a different number of carbon atoms by redistribution reactions by conversion at a saturated carbon-to-carbon bond of exclusively hydrocarbons containing a six-membered aromatic ring of only one hydrocarbon
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C6/00Preparation of hydrocarbons from hydrocarbons containing a different number of carbon atoms by redistribution reactions
    • C07C6/08Preparation of hydrocarbons from hydrocarbons containing a different number of carbon atoms by redistribution reactions by conversion at a saturated carbon-to-carbon bond
    • C07C6/12Preparation of hydrocarbons from hydrocarbons containing a different number of carbon atoms by redistribution reactions by conversion at a saturated carbon-to-carbon bond of exclusively hydrocarbons containing a six-membered aromatic ring
    • C07C6/126Preparation of hydrocarbons from hydrocarbons containing a different number of carbon atoms by redistribution reactions by conversion at a saturated carbon-to-carbon bond of exclusively hydrocarbons containing a six-membered aromatic ring of more than one hydrocarbon
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10GCRACKING 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
    • C10G29/00Refining of hydrocarbon oils, in the absence of hydrogen, with other chemicals
    • C10G29/20Organic compounds not containing metal atoms
    • C10G29/205Organic compounds not containing metal atoms by reaction with hydrocarbons added to the hydrocarbon oil
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10GCRACKING 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
    • C10G47/00Cracking of hydrocarbon oils, in the presence of hydrogen or hydrogen- generating compounds, to obtain lower boiling fractions
    • C10G47/02Cracking of hydrocarbon oils, in the presence of hydrogen or hydrogen- generating compounds, to obtain lower boiling fractions characterised by the catalyst used
    • C10G47/10Cracking of hydrocarbon oils, in the presence of hydrogen or hydrogen- generating compounds, to obtain lower boiling fractions characterised by the catalyst used with catalysts deposited on a carrier
    • C10G47/12Inorganic carriers
    • C10G47/16Crystalline alumino-silicate carriers
    • C10G47/20Crystalline alumino-silicate carriers the catalyst containing other metals or compounds thereof
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10GCRACKING 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
    • C10G50/00Production of liquid hydrocarbon mixtures from lower carbon number hydrocarbons, e.g. by oligomerisation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J29/00Catalysts comprising molecular sieves
    • B01J29/04Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/40Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11, as exemplified by patent documents US3702886, GB1334243 and US3709979, respectively
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J29/00Catalysts comprising molecular sieves
    • B01J29/04Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/50Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the erionite or offretite type, e.g. zeolite T, as exemplified by patent document US2950952
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2529/00Catalysts comprising molecular sieves
    • C07C2529/04Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites, pillared clays
    • C07C2529/06Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • C07C2529/70Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups C07C2529/08 - C07C2529/65
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10GCRACKING 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
    • C10G2400/00Products obtained by processes covered by groups C10G9/00 - C10G69/14
    • C10G2400/02Gasoline

Definitions

  • This invention relates to a UZM-35 composition
  • a MSE zeolite comprising a MSE zeolite, an MFI zeolite, and an ERI zeolite.
  • the UZM-35 composition is represented by the empirical formula of:
  • M m n+ R + r Al 1-x E x Si y O z
  • M represents a combination of potassium and sodium exchangeable cations
  • R is a singly charged organoammonium cation such as dimethyldipropylammonium
  • E is a framework element such as gallium.
  • Zeolites are crystalline aluminosilicate compositions which are microporous and which are formed from corner sharing A10 2 and Si0 2 tetrahedra. Numerous zeolites, both naturally occurring and synthetically prepared are used in various industrial processes. Synthetic zeolites are prepared via hydrothermal synthesis employing suitable sources of Si, Al and structure directing agents such as alkali metals, alkaline earth metals, amines, or organoammonium cations. The structure directing agents reside in the pores of the zeolite and are largely responsible for the particular structure that is ultimately formed. These species balance the framework charge associated with aluminum and can also serve as space fillers.
  • Zeolites are characterized by having pore openings of uniform dimensions, having a significant ion exchange capacity, and being capable of reversibly desorbing an adsorbed phase, which is dispersed throughout the internal voids of the crystal without significantly displacing any atoms, which make up the permanent zeolite crystal structure.
  • Topological zeolite structure are described in Atlas of Zeolite Framework Types, which is maintained by the International Zeolite Association Structure Commission at http://www.iza- structure.org/databases/. Zeolites can be used as catalysts for hydrocarbon conversion reactions, which can take place on outside surfaces as well as on internal surfaces within the pore.
  • MCM-68 One particular zeolite of the MSE structure type, designated MCM-68, was disclosed by Calabro et al. in 1999 (US 6,049,018). This patent describes the synthesis of MCM-68 from dication directing agents, N,N,N',N'-tetraalkylbicyclo[2.2.2]oct-7-ene- 2R,3S:5R,6S-dipyrrolidinium dication, and N,N,N',N'-tetraalkylbicyclo[2.2.2]octane- 2R,3S:5R,6S -dipyrrolidinium dication.
  • MCM-68 was found to have at least one channel system in which each channel is defined by a 12-membered ring of tetrahedrally coordinated atoms and at least two further independent channel systems in which each channel is defined by a 10-membered ring of tetrahedrally coordinated atoms wherein the number of unique 10- membered ring channels is twice the number of 12-membered ring channels.
  • UZM-35 composition The topology of one of the zeolites in the composition is similar to that observed for MCM-68.
  • the materials are prepared via the use of a simple commercially available structure directing agents, such as dimethyldipropylammonium hydroxide, in concert with small amounts of K + and Na + together using the Charge Density Mismatch Approach to zeolite synthesis described in US 7,578,993.
  • the UZM-35 zeolite having the MSE topology may be synthesized as a UZM-35 composition comprising the MSE topology zeolite as well as a MFI topology zeolite and an ERI topology zeolite.
  • Topologies of MSE, MFI, ERI are as defined in Atlas of Zeolite Framework Types, which is maintained by the International Zeolite Association Structure Commission at http://www.iza- structure . org/ databases/.
  • the present invention relates to a new aluminosilicate zeolite composition designated UZM-35 composition which comipsises an MSE zeolite, a MFI zeolite and an ERI zeolite.
  • UZM-35 composition which comipsises an MSE zeolite, a MFI zeolite and an ERI zeolite.
  • one embodiment of the invention is a microporous crystalline zeolitic UZM-35 composition having a three-dimensional framework of at least A10 2 and Si0 2 tetrahedral units and an empirical composition in the as synthesized and anhydrous basis expressed by an empirical formula of:
  • M represents a combination of potassium and sodium exchangeable cations
  • m is the mole ratio of M to (Al + E) and varies from about 0.05 to about 3
  • R is a singly charged organoammonium cation selected from the group consisting of dimethyldipropylammonium (DMDPA + ), dimethyl diisopropylammonium (DMDIP + ), choline, ethyltrimethylammonium (ETMA + ), diethyldimethylammonium (DEDMA + ), trimethylpropylammonium,
  • r is the mole ratio of R to (Al +E) and has a value of about 0.25 to about 2.0
  • E is an element selected from the group consisting of gallium, iron, boron and mixtures thereof
  • x is the mole fraction of E and has a value from 0 to about 1.0
  • y is the mole ratio of Si to (Al + E) and varies from greater than 2 to about 12
  • the composition is thermally stable up to a temperature of greater than 400°C in one embodiment and 600°C in another embodiment.
  • the UZM-35 composition as synthesized comprises a MSE topology zeolite, a MFI topology zeolite and an ERI topology zeolite.
  • the amount of MSE zeolite in the composition will vary from about 55 wt % to about 75 wt. % or from about 55 wt-% to about 90 wt.-%.
  • the amount of MFI zeolite varies from about 20 wt-% to about 35 wt-% of the composition or from about 10 wt-% to about 35 wt.-%, and the amount of ERI zeolite varies from about 3 wt-% to about 9 wt-% of the composition or from about 3 wt-% to about 10 wt.-%.
  • the sum of the amount of the three zeolites, absent any other impurities adds up to 100 wt % of the composition.
  • the crystalline microporous zeolitic UZM-35 composition described above may be synthesized by forming a reaction mixture containing reactive sources of M, R, Al, Si and optionally E and heating the reaction mixture at a temperature of about 150°C to about 200°C, or about 165°C to about 185°C, for a time sufficient to form the composition, the reaction mixture having a composition expressed in terms of mole ratios of the oxides of: aM 2 0 : bR 2/p O : l-cAl 2 0 3 : cE 2 0 3 : dSi0 2 where "a” has a value of about 0.05 to about 1.25, "b” has a value of about 1.5 to about 40, "p” is the weighted average valance of R and varies froml to about 2, "c” has a value of 0 to about 1.0, “d” has a value of about 4 to about 40, "e” has a value of about 25 to about 4
  • Yet another embodiment of the invention is a hydrocarbon conversion process using the UZM-35 composition.
  • the process comprises contacting the hydrocarbon with the UZM-35 composition at conversion conditions to give a converted hydrocarbon.
  • Applicants have prepared an aluminosilicate zeolitic composition which comprises a MSE zeolite, a MFI zeolite, and an ERI zeolite.
  • the MSE zeolite has a topological structure that is related to MSE as described in Atlas of Zeolite Framework Types and thus will be called an MSE zeolite herein.
  • the UZM-35 composition is different from MCM-68 in a number of its characteristics.
  • the microporous crystalline zeolitic UZM-35 composition has an empirical composition in the as-synthesized form and on an anhydrous basis expressed by the empirical formula:
  • R is a singly charged organoammonium cation, examples of which include but are not limited to the dimethyldipropylammonium cation (DMDPA + ), dimethyldiisopropylammonium (DMDIP + ), choline [(CH 3 ) 3 N(CH 2 ) 2 OH] + , ETMA + , DEDMA + , trimethylpropylammonium,
  • the weighted average valence is the valence of that one metal, i.e. +1 or +2.
  • the total amount of: and the weighted average valence "n" is given by the equation:
  • the microporous crystalline zeolitic UZM-35 composition is prepared by a hydrothermal crystallization of a reaction mixture prepared by combining reactive sources of M, R, aluminum, silicon and optionally E.
  • the sources of aluminum include but are not limited to aluminum alkoxides, precipitated aluminas, aluminum metal, aluminum salts and alumina sols. Specific examples of aluminum alkoxides include, but are not limited to aluminum ortho sec-butoxide and aluminum ortho isopropoxide.
  • Sources of silica include but are not limited to tetraethylorthosilicate, colloidal silica, precipitated silica and alkali silicates.
  • Sources of the E elements include but are not limited to alkali borates, boric acid, precipitated gallium oxyhydroxide, gallium sulfate, ferric sulfate, and ferric chloride.
  • Sources of the M metals, potassium and sodium include the halide salts, nitrate salts, acetate salts, and hydroxides of the respective alkali metals.
  • R is an organoammonium cation selected from the group consisting of dimethyldipropylammonium, choline, ETMA, DEDMA, TEA, TPA, trimethylpropylammonium, trimethylbutylammonium,
  • dimethyldiethanolammonium and mixtures thereof and the sources include the hydroxide, chloride, bromide, iodide and fluoride compounds.
  • specific examples include without limitation dimethyldipropylammonium hydroxide, dimethyldipropylammonium chloride, dimethyldipropylammonium bromide, dimethyldiisopropylammonium hydroxide, dimethyldiisopropylammonium chloride, dimethyldiisopropylammonium bromide ethyltrimethylammonium hydroxide, diethyldimethylammonium hydroxide,
  • the metal M is +1 valance, specifically potassium and sodium.
  • the composition may undergo additional ion exchange steps post synthesis to provide a material with one or more metals, M, having a +2 valance.
  • reaction mixture containing reactive sources of the desired components can be described in terms of molar ratios of the oxides by the formula: aM 2 0 : bR 2 pO : l-cAl 2 0 3 : cE 2 0 3 : dSi0 2 : eH 2 0 where "a” varies from about 0.05 to about 1.25, "b” varies from about 1.5 to about 40, “c” varies from 0 to 1.0, “d” varies from about 4 to about 40, and "e” varies from about 25 to about 4000. If alkoxides are used, it is preferred to include a distillation or evaporative step to remove the alcohol hydrolysis products.
  • the reaction mixture is now reacted at a temperature of about 150°C to about 200°C, about 165°C to about 185°C, or about 170°C to about 180°C, for a period of about 1 day to about 3 weeks and preferably for a time of about 5 days to about 12 days in a sealed reaction vessel under autogenous pressure.
  • the solid product is isolated from the heterogeneous mixture by means such as filtration or centrifugation, and then washed with deionized water and dried in air at ambient temperature up to about 100°C.
  • UZM-35 zeolite seeds can optionally be added to the reaction mixture in order to accelerate the formation of the composition..
  • UZM-35 composition utilizes the charge density mismatch concept, which is disclosed in US 7,578,993 and Studies in Surface Science and Catalysis, (2004), Vol. 154A, 364-372.
  • the method disclosed in US 7,578,993 employs quaternary ammonium hydroxides to solubilize aluminosilicate species, while crystallization inducing agents such as alkali and alkaline earth metals and more highly charged
  • organoammonium cations are often introduced in a separate step.
  • the seeds can be used in a single step synthesis of the UZM-35 composition, using, for example, a combination of dimethyldipropylammonium hydroxide and the alkali cations.
  • dimethyldipropylammonium hydroxide to prepare the UZM-35 composition offers a great economic advantage over the structure directing agents previously employed ( ⁇ , ⁇ , ⁇ ', ⁇ '- tetraalkylbicyclo[2.2.2]oct-7-ene-2R,3S:5R,6S -dipyrrolidinium dication, and ⁇ , ⁇ , ⁇ ', ⁇ '- tetraalkylbicyclo[2.2.2]octane-2R,3S:5Rs,6-dipyrroIidinium dication) to prepare aluminosilicates with the MSE topology.
  • dimethyldipropyl ammonium hydroxide can be employed as the hydroxide or the chloride in concert with other inexpensive organoammonium hydroxides using the charge density mismatch concept to reduce costs even further.
  • the UZM-35 composition which is obtained from the above-described process, is characterized by the x-ray diffraction pattern using the Rietveld refinement method described in J.Appl. Cryst. (1969) 2, 65-71 , and having at least the d-spacings and relative intensities set forth in Table A below.
  • the UZM-35 composition is thermally stable up to a temperature of at least 400°C and in another embodiment, up to about 600°C.
  • the UZM-35 composition will contain some of the exchangeable or charge balancing cations in its pores. These exchangeable cations can be exchanged for other cations, or in the case of organic cations, they can be removed by heating under controlled conditions. Because UZM-35 composition comprises large pore zeolite(s), it is also possible to remove some organic cations directly by ion exchange. The UZM-35 composition may be modified in many ways to tailor it for use in a particular application.
  • Modifications include calcination, ion-exchange, steaming, various acid extractions, ammonium hexafluorosilicate treatment, or any combination thereof, as outlined for the case of UZM-4M in US 6,776,975 Bl which is incorporated by reference in its entirety.
  • Properties that are modified include porosity, adsorption, Si/Al mole ratio, acidity, thermal stability, etc.
  • UZM-35HS The UZM-35 compositions which are modified by one or more techniques described in the '975 patent (herein UZM-35HS) are described by the empirical formula on an anhydrous basis of:
  • Ml is at least one exchangeable cation selected from the group consisting of alkali, alkaline earth metals, rare earth metals, ammonium ion, hydrogen ion and mixtures thereof
  • a is the mole ratio of Ml to (Al + E) and varies from about 0.05 to about 50
  • n is the weighted average valence of Ml and has a value of about +1 to about +3
  • E is an element selected from the group consisting of gallium, iron, boron, and mixtures thereof
  • x is the mole fraction of E and varies from 0 to 1.0
  • y' is the mole ratio of Si to (Al + E) and varies from greater than about 4 to virtually pure silica
  • a zeolite is virtually pure silica when y' has a value of at least 3,000, preferably 10,000 and most preferably 20,000.
  • ranges for y' are from 4 to 3,000 preferably greater than 10 to about 3,000; 4 to 10,000 preferably greater than 10 to about 10,000 and 4 to 20,000 preferably greater than 10 to about 20,000.
  • anhydrous state of the zeolite will be intended unless otherwise stated.
  • the term “anhydrous state” is employed herein to refer to a zeolite substantially devoid of both physically adsorbed and chemically adsorbed water.
  • the crystalline zeolitic UZM-35 composition of this invention can be used for separating mixtures of molecular species, removing contaminants through ion exchange and catalyzing various hydrocarbon conversion processes. Separation of molecular species can be based either on the molecular size (kinetic diameter) or on the degree of polarity of the molecular species.
  • the UZM-35 composition of this invention can also be used as a catalyst or catalyst support in various hydrocarbon conversion processes.
  • Hydrocarbon conversion processes are well known in the art and include cracking, hydrocracking, alkylation of both aromatics and isoparaffin, isomerization of paraffin and poly-alkylbenzenes such as xylene, trans-alkylation of poly-alkybenzene with benzene or mono-alkybenzenes, disproportionation of mono-alkybenzenes, polymerization, reforming, hydrogenation, dehydrogenation, transalkylation, dealkylation, hydration, dehydration, hydrotreating, hydrodenitrogenation, hydrodesulfurization, methanation and syngas shift process.
  • Hydrocracking conditions typically include a temperature in the range of about 204°C to about 649°C (400° to 1200°F) or about 316°C to about 510°C (600° F and 950°F ).
  • Reaction pressures are in the range of atmospheric to about 24,132 kPa g (3,500 psig), or between about 1379 to about 20,685 kPa g (200 to 3000 psig).
  • Contact times usually correspond to liquid hourly space velocities (LHSV) in the range of about 0.1 hr "1 to 15 hr "1 , preferably between about 0.2 and 3 hr "1 .
  • Hydrogen circulation rates are in the range of 178 to about 8,888 std. m 3 /m 3 (1,000 to 50,000 standard cubic feet (scf) per barrel of charge), or about 355 to about 5,333 std. m 3 /m 3 (about 2,000 to about 30,000 scf per barrel of charge).
  • Suitable hydrotreating conditions are generally within the broad ranges of hydrocracking conditions set out above.
  • reaction zone effluent is normally removed from the catalyst bed, subjected to partial condensation and vapor-liquid separation and then fractionated to recover the various components thereof.
  • the hydrogen, and if desired some or all of the unconverted heavier materials, are recycled to the reactor.
  • a two-stage flow may be employed with the unconverted material being passed into a second reactor.
  • Catalysts of the subject invention may be used in just one stage of such a process or may be used in both reactor stages.
  • Catalytic cracking processes are preferably carried out with the UZM-35 composition using feedstocks such as gas oils, heavy naphthas, deasphalted crude oil residua, etc. with gasoline being the principal desired product.
  • feedstocks such as gas oils, heavy naphthas, deasphalted crude oil residua, etc.
  • gasoline being the principal desired product.
  • Temperature conditions of about 454°C to about 593°C (about 850°F to about 1 100°F), LHSV values of 0.5 to 10 and pressure conditions of from about 0 to about 344 kPa g (about 0 to 50 psig) are suitable.
  • Alkylation of aromatics usually involves reacting an aromatic (C 2 to Ci 2 ), especially benzene, with a monoolefm to produce a linear alkyl substituted aromatic.
  • the process is carried out at an aromatic: olefin (e.g., benzene: olefin) ratio of between 1 : 1 and 30: 1 , a olefin LHSV of about 0.3 to about 10 hr "1 , a temperature of about 100° to about 250°C and pressures of about 1379 kPa g to about 6895 kPa g (about 200 to about 1000 psig).
  • Alkylation of isoparaffins with olefins to produce alkylates suitable as motor fuel components is carried out at temperatures of -30° to 40°C, pressures from about atmospheric to about 6,895 kPa (1 ,000 psig) and a weight hourly space velocity (WHSV) of 0.1 to about 120. Details on paraffin alkylation may be found in US 5,157,196 and US 5,157,197, which are incorporated by reference.
  • the structure of the UZM-35 composition of this invention was determined by x- ray analysis.
  • the x-ray patterns presented in the following examples were obtained using standard x-ray powder diffraction techniques.
  • the radiation source was a high-intensity, x-ray tube operated at 45 kV and 35 ma.
  • the diffraction pattern from the copper K-alpha radiation was obtained by appropriate computer based techniques.
  • Flat compressed powder samples were continuously scanned at 2° to 56° (2 ⁇ ).
  • Interplanar spacings (d) in Angstrom units were obtained from the position of the diffraction peaks expressed as ⁇ where ⁇ is the Bragg angle as observed from digitized data.
  • Intensities were determined from the integrated area of diffraction peaks after subtracting background, "I 0 " being the intensity of the strongest line or peak, and "I" being the intensity of each of the other peaks.
  • the purity of a synthesized product may be assessed with reference to its x-ray powder diffraction pattern.
  • a sample is stated to be pure, it is intended only that the x-ray pattern of the sample is free of lines attributable to crystalline impurities, not that there are no amorphous materials present.
  • EXAMPLE 1 An aluminosilicate reaction solution was prepared by first mixing 16.64 aluminum hydroxide (27.78 mass- % Al) and 526.79 g dimethyldipropylammonium hydroxide, 18.8 mass-% solution, while stirring vigorously. After thorough mixing, 252.98 g of LudoxTM AS- 40 (40% Si0 2 ) was added. The reaction mixture was homogenized for an additional hour with a high speed mechanical stirrer and placed in an oven at 100°C overnight. Analysis showed the resulting aluminosilicate solution contained 6.52 wt. % Si and 0.64 wt. % Al yielding a Si/Al ratio of 9.78.
  • a 100.0 g portion of the above aluminosilicate solution was continuously stirred.
  • a composite aqueous solution containing 2.38 g of KOH and 0.3 g of NaOH dissolve in 15 g H 2 0 was added, dropwise, to the aluminosilicate solution.
  • the resulting reaction mixture was homogenized for 1 hour, transferred to (4) 45 ml Parr stainless steel autoclave which was heated to 175°C and maintained at that temperature for 216 hrs.
  • the solid product was recovered by centrifugation, washed with de-ionized water, and dried at 100°C.
  • a 1200 g portion of the above aluminosilicate solution was continuously stirred.
  • the resulting reaction mixture was homogenized for 1 hour, transferred to a 2000 ml Parr stainless steel autoclave which was heated to 175°C and maintained at that temperature for 216 hrs.
  • the solid product was recovered by centrifugation, washed with de- ionized water, and dried at 100°C.
  • This example describes the modification of a UZM-35 material.
  • a solution was prepared by first diluting 2 g of HN0 3 (69 mass-%) followed by dissolving 10 g of NH 4 N0 3 in 120 g de-ionized water. This solution was heated to 75 °C before adding the calcined UZM-35. The slurry was stirred for 1 hr at 75°C. The product was isolated by filtration, washed with de-ionized water and dried at 100°C for 12 hrs.
  • EXAMPLE 5 This example demonstrates the modification of a UZM-35 material.
  • a solution was prepared by dissolving 20 g of N3 ⁇ 4N0 3 in 490 g de-ionized water. The solution was heated to 75°C before adding the calcined UZM-35. The slurry was stirred for 1 hr at 75°C. The product was isolated by filtration, washed with de-ionized water and dried at 100°C for 12 hrs.
  • EXAMPLE 6 An aluminosilicate solution was prepared by first mixing 37.17g aluminum hydroxide (27.78 mass-% Al) and 1053.58 g dimethyldipropylammonium hydroxide, 18.8 mass-% solution, with vigorous stirring. After thorough mixing, 505.96 g of LudoxTM AS-40 (40 mass-% Si0 2 ) was added. The reaction mixture was homogenized for an additional hour with a high speed mechanical stirrer and placed in an oven at 100°C overnight. Analysis showed the resulting aluminosilicate solution contained 6.16 wt. % Si and 0.67 wt. % Al yielding a Si/Al mole ratio of 8.83.
  • An aluminosilicate solution was prepared by first mixing 37.17 aluminum hydroxide (27.78 mass % Al) and 1053.58 g dimethyldipropylammonium hydroxide, 18.8 mass-% solution, with vigorous stirring. After thorough mixing, 505.96 g of LudoxTM AS-40 (40 mass-% Si0 2 ) was added. The reaction mixture was homogenized for an additional hour with a high speed mechanical stirrer and placed in an oven at 100°C overnight. Analysis showed the resulting aluminosilicate solution contained 6.16 wt.-%-Si and 0.67 wt.-% Al yielding a Si/Al mole ratio of 8.83.
  • the solid products were recovered by centrifugation, washed with de-ionized water and dried at 95°C.
  • the product was identified as ZSM-5 zeolite by xrd.
  • An aluminosilicate reaction solution was prepared by first mixing 86.33 g of aluminum hydroxide (26.97 mass-% Al) and 1437.67 g of dimethyldipropylammonium hydroxide (40.66 mass-% solution), while stirring vigorously. After thorough mixing, 1366.88 g LudoxTM AS-40 (Si0 2 , mass-40 %) was added.
  • the reaction mixture was homogenized for 20 minutes with a high-speed mechanical stirrer, the aluminosilicate colloidal solution was continuously stirred and an aqueous solution containing 83.04 g of KOH and 17.38 g of NaOH dissolved in 808.7 g H 2 0, was added, drop wise, to the aluminosilicate solution.
  • the resulting reaction mixture was homogenized for 1/2 hour, transferred to (3) 2000 ml Parr stainless steel autoclave which were heated to 175°C and maintained at that temperature for 9 days. The solid products were recovered by filtration, washed with de-ionized water, and dried at 100°C.
  • the product resulting from this reaction was identified by x-ray diffraction (Rietveld refinement method described in J.Appl. Cryst. (1969) 2, 65-71) to be a UZM-35 composition of 72.1 wt-% MSE type zeolite with a lattice parameter of 18.372 angstroms for a and 20.285 angstroms for c; 24.1 wt-% MFI zeolite with a lattice parameter of 20.101 angstroms for a, 19.862 angstroms for b and 13.402 for c, and 3.7 wt-% ERI zeolite with a lattice parameter of 13.222 angstroms for a and 14.900 angstroms for c.
  • BET Surface area was determined to be 408 m2/g and micropore volume was 0.197 cc/g. Representative diffraction lines observed for the
  • a solution was prepared by dissolving 160 g of NH 4 N0 3 in 1800 g de-ionized water. The solution was heated to 75°C before adding the calcined UZM-35. The slurry was stirred for 1 hr at 75°C.
  • EXAMPLE 9 An aluminosilicate reaction solution was prepared by first mixing 29.01 g of aluminum hydroxide (26.97 % Al) and 483.08 g of dimethyldipropylammonium hydroxide (40.66% solution), while stirring vigorously. After thorough mixing, 461.58 g LudoxTM AS- 40 (Si0 2 , 40 %) was added. The reaction mixture was homogenized for 20 minutes with a high-speed mechanical stirrer, the aluminosilicate colloidal solution was continuously stirred and an aqueous solution containing 27.90 g of KOH and 3.46 g of NaOH dissolved in 269.98 g 3 ⁇ 40, was added, drop wise, to the aluminosilicate solution.
  • reaction mixture was homogenized for 1/2 hour, transferred to a 2000 ml Parr stainless steel autoclave, which was heated to 175°C and maintained at that temperature for 10 days.
  • the solid products were recovered by filtration, washed with de- ionized water, and dried at 100°C.
  • the product resulting from this reaction was identified by x-ray diffraction (Rietveld refinement method described in J.Appl. Cryst. (1969) 2,65-71) to be a UZM-35 composition of 66.3 wt% MSE type zeolite with a lattice parameter of 18.369 angstroms for a and 20.284 angstroms for c; 25.5 wt% MFI with a lattice parameter of 20.136 angstroms for a, 19.976 angstroms for b and 13.443 angstroms for c, and 8.2 wt % ERI with a lattice parameter of 13.152 angstroms for a and 15.107 angstroms for c.
  • a solution was prepared by dissolving 160 g of NH 4 N0 3 in 1800 g de-ionized water. The solution was heated to 75 °C before adding the calcined UZM-35. The slurry was stirred for 1 hr at 75°C. The product was isolated by filtration, washed with de-ionized water. This NH4 exchange procedure was repeated 3 times then it was dried at 100°C for 12 hrs.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)
  • Catalysts (AREA)

Abstract

Une nouvelle famille de compositions zéolithiques d'aluminosilicate cristallin, les compositions UZM-35, a été synthétisée. Ces compositions zéolithiques sont représentées par la formule empirique : Mn+ nR+ rAl(1-x)ExSiyOz où M représente une combinaison d'ions échangeables potassium et sodium, R représente un cation organoammonium à charge unique tel que le cation diméthyldipropylammonium et E est un élément de réseau tel que le gallium. Ces compositions comprennent une zéolithe MSE, une zéolithe MFI et une zéolithe ERI. Les compositions sont similaires à MCM-68, mais sont caractérisées par un diffractogramme aux rayons X unique et présentent des propriétés catalytiques permettant la mise en œuvre de divers processus de conversion d'hydrocarbures.
EP10853784.6A 2010-06-21 2010-06-21 Composition zéolithique uzm-35, son procédé d'élaboration et procédés Withdrawn EP2582626A4 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2010/039380 WO2011162741A1 (fr) 2010-06-21 2010-06-21 Composition zéolithique uzm-35, son procédé d'élaboration et procédés

Publications (2)

Publication Number Publication Date
EP2582626A1 true EP2582626A1 (fr) 2013-04-24
EP2582626A4 EP2582626A4 (fr) 2016-04-06

Family

ID=45371700

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10853784.6A Withdrawn EP2582626A4 (fr) 2010-06-21 2010-06-21 Composition zéolithique uzm-35, son procédé d'élaboration et procédés

Country Status (5)

Country Link
EP (1) EP2582626A4 (fr)
JP (1) JP2013534896A (fr)
CN (1) CN102947224A (fr)
RU (1) RU2525417C2 (fr)
WO (1) WO2011162741A1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8993821B2 (en) * 2012-12-18 2015-03-31 Uop Llc Hydrocarbon processes using UZM-43 an EUO-NES-NON zeolite
US9193600B1 (en) * 2014-06-04 2015-11-24 Chevron U. S. A. Inc. Method for making molecular sieve SSZ-99
US9409786B2 (en) * 2014-07-03 2016-08-09 Chevron U.S.A. Inc. Molecular sieve SSZ-98
US10010878B2 (en) * 2015-03-03 2018-07-03 Uop Llc High meso-surface area, low Si/Al ratio pentasil zeolite
KR101795404B1 (ko) * 2016-05-18 2017-11-08 현대자동차 주식회사 촉매 및 촉매의 제조 방법
JP6966087B2 (ja) * 2016-09-29 2021-11-10 国立大学法人横浜国立大学 ゼオライトとその製造方法
US10272420B2 (en) * 2016-10-06 2019-04-30 Uop Llc Composition of matter and structure of zeolite UZM-55
AU2018286313B2 (en) * 2017-06-15 2023-11-23 Mitsubishi Chemical Corporation Ammonia separation method and zeolite
BR112019024634A2 (pt) * 2017-07-27 2020-06-16 Exxonmobil Research And Engineering Company Materiais emm-23 e processos e usos dos mesmos
RU2020120485A (ru) * 2017-12-21 2022-01-21 ЭкссонМобил Рисерч энд Энджиниринг Компани Emm-31 материалы, и способы, и их применения
WO2020038222A1 (fr) * 2018-08-24 2020-02-27 Rhodia Operations Zéolite cristalline microporeuse d'aluminotitanosilicate, son procédé de préparation et ses applications
EP3873660A1 (fr) * 2018-11-01 2021-09-08 ExxonMobil Research and Engineering Company Forme hautement siliceuse de zéolite rho
CN112973475A (zh) * 2019-12-14 2021-06-18 中国科学院大连化学物理研究所 晶种法制备uzm系列沸石分子筛膜的方法及应用

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3136684A1 (de) * 1981-09-16 1983-04-21 Hoechst Ag, 6230 Frankfurt "gallium- und/oder indiumhaltige zeolithe und verfahren zu deren herstellung sowie ihre verwendung"
US6049018A (en) * 1999-01-21 2000-04-11 Mobil Corporation Synthetic porous crystalline MCM-68, its synthesis and use
US6419895B1 (en) * 2000-11-03 2002-07-16 Uop Llc Crystalline aluminosilicate zeolitic composition: UZM-4
US6890511B2 (en) * 2003-03-21 2005-05-10 Uop Llc Crystalline aluminosilicate zeolitic composition: UZM-15
CA2539677C (fr) * 2003-09-23 2012-08-28 Uop Llc Aluminosilicates cristallins: uzm-13, uzm-17, uzm-19 et uzm-25
WO2005042149A1 (fr) * 2003-10-31 2005-05-12 Uop Llc Procede de preparation de compositions d'aluminosilicate par mise en concordance des densites de charge
EP1742737A1 (fr) * 2004-04-20 2007-01-17 Uop Llc Catalyseur pour l'ouverture selective de paraffines cycliques et procede d'utilisation du catalyseur
JP4836939B2 (ja) * 2004-04-23 2011-12-14 ユーオーピー エルエルシー 高シリカゼオライト:uzm−5hs
US7344694B2 (en) * 2004-10-06 2008-03-18 Uop Llc UZM-12 and UZM-12HS: crystalline aluminosilicate zeolitic compositions and processes for preparing and using the compositions
US7744850B2 (en) * 2006-08-03 2010-06-29 Uop Llc UZM-22 aluminosilicate zeolite, method of preparation and processes using UZM-22
JP4954854B2 (ja) * 2007-11-22 2012-06-20 ユーオーピー エルエルシー 層状化モレキュラーシーブ組成物の調製方法
US7922997B2 (en) * 2008-09-30 2011-04-12 Uop Llc UZM-35 aluminosilicate zeolite, method of preparation and processes using UZM-35
US7575737B1 (en) * 2008-12-18 2009-08-18 Uop Llc UZM-27 family of crystalline aluminosilicate compositions and a method of preparing the compositions

Also Published As

Publication number Publication date
CN102947224A (zh) 2013-02-27
EP2582626A4 (fr) 2016-04-06
RU2012150425A (ru) 2014-06-10
WO2011162741A1 (fr) 2011-12-29
JP2013534896A (ja) 2013-09-09
RU2525417C2 (ru) 2014-08-10

Similar Documents

Publication Publication Date Title
EP2328839B1 (fr) Zéolithes d'aluminosilicate uzm-35, procédé de préparation et procédés employant uzm-35
US7575737B1 (en) UZM-27 family of crystalline aluminosilicate compositions and a method of preparing the compositions
WO2011162741A1 (fr) Composition zéolithique uzm-35, son procédé d'élaboration et procédés
US8053618B1 (en) UZM-35 zeolitic composition, method of preparation and processes
US20080031810A1 (en) Uzm-22 aluminosilicate zeolite, method of preparation and processes using uzm-22
TWI513659B (zh) Uzm-37矽酸鋁沸石
US8754279B1 (en) UZM-44 aluminosilicate zeolite
JP5666701B2 (ja) Uzm−45アルミノケイ酸塩ゼオライト、uzm−45の調製方法およびそれを用いたプロセス
WO2010074889A2 (fr) Famille de compositions d'aluminosilicates cristallins uzm-26, procédé de préparation et procédés d'utilisation de ces compositions
WO2011008423A2 (fr) Procédé d’alkylation d’hydrocarbures aromatiques utilisant les uzm-35
US8268290B2 (en) UZM-29 family of crystalline zeolitic compositions and a method of preparing the compositions
US8022262B1 (en) UZM-35 zeolitic composition method of preparation and processes
US8017824B2 (en) Hydrocarbon conversion processes using UZM-29 and UZM-29HS crystalline zeolitic compositions
US20120123178A1 (en) Uzm-35hs aluminosilicate zeolite, method of preparation and processes using uzm-35hs
US7888544B2 (en) Hydrocarbon conversion processes using the UZM-27 family of crystalline aluminosilicate compositions
WO2011017183A2 (fr) Famille uzm-29 de compositions zéolithiques cristallines et procédé de préparation des compositions

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20121214

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

DAX Request for extension of the european patent (deleted)
RA4 Supplementary search report drawn up and despatched (corrected)

Effective date: 20160309

RIC1 Information provided on ipc code assigned before grant

Ipc: C10G 47/20 20060101ALI20160303BHEP

Ipc: B01J 29/40 20060101ALI20160303BHEP

Ipc: B01J 29/70 20060101ALI20160303BHEP

Ipc: C01B 39/48 20060101ALI20160303BHEP

Ipc: C07C 2/58 20060101ALI20160303BHEP

Ipc: C01B 39/02 20060101AFI20160303BHEP

Ipc: C10G 50/00 20060101ALI20160303BHEP

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20161011