EP0640011A1 - Procede de purification - Google Patents

Procede de purification

Info

Publication number
EP0640011A1
EP0640011A1 EP93911924A EP93911924A EP0640011A1 EP 0640011 A1 EP0640011 A1 EP 0640011A1 EP 93911924 A EP93911924 A EP 93911924A EP 93911924 A EP93911924 A EP 93911924A EP 0640011 A1 EP0640011 A1 EP 0640011A1
Authority
EP
European Patent Office
Prior art keywords
absorbent material
bed
oxide
hydrocarbons
weight
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Withdrawn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
EP93911924A
Other languages
German (de)
English (en)
Inventor
Ian William 3 Victoria Gardens Mckernan
Michael John 11 Mildenhall Place Holder
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.)
Molecular Products Ltd
Original Assignee
Molecular Products Ltd
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 Molecular Products Ltd filed Critical Molecular Products Ltd
Publication of EP0640011A1 publication Critical patent/EP0640011A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives
    • C07C7/148—Purification; Separation; Use of additives by treatment giving rise to a chemical modification of at least one compound
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/04—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
    • B01J20/041—Oxides or hydroxides
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
    • B01J20/08—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04 comprising aluminium oxide or hydroxide; comprising bauxite
    • 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
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/3007—Moulding, shaping or extruding
    • 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
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/3028—Granulating, agglomerating or aggregating
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives
    • C07C7/12—Purification; Separation; Use of additives by adsorption, i.e. purification or separation of hydrocarbons with the aid of solids, e.g. with ion-exchangers
    • 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
    • B01J2220/00—Aspects relating to sorbent materials
    • B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
    • B01J2220/42—Materials comprising a mixture of inorganic materials

Definitions

  • This invention is concerned with improvements in and relating to compositions for removing acidic contaminants from hydrocarbons and to processes for purifying hydrocarbons using such compositions.
  • hydrocarbon materials both liquid and gaseous, are treated to remove unwanted acidic contaminants.
  • olefins such as ethylene and propylene
  • olefins such as ethylene and propylene
  • LPG liquefied petroleum gas
  • Other hydrocarbons which may be treated include gas condensates and halogenated hydrocarbons, which may be treated to remove traces of hydrogen chloride and phosgene.
  • a solid absorbent material for removing acidic contaminants from hydrocarbons, which absorbent material comprises sodium hydroxide and/or potassium hydroxide (especially the former) ; alumina and/or zinc oxide (especially the former) ; and lime (calcium hydroxide) .
  • the composition also preferably contains copper II oxide; especially when the composition is to be used in the treatment of dry (anhydrous) hydrocarbon materials.
  • composition of the invention suitably contains upto 10% by weight of sodium hydroxide and/or potassium hydroxide; upto 40% by weight of aluminium oxide and/or zinc oxide; from 40 to 97% by weight of lime; and from upto 40% by weight of copper oxide (when present) .
  • Preferred compositional ranges for the above components are set out in the following Table. Table
  • the water content of the composition of the invention is of importance and thus the composition suitably contains from 2 to 5% by weight of water.
  • compositions in accordance with the invention may simply be formed by making a mixture of the various components together with sufficient water to form a plastic dough and subsequently forming the dough into particulate form and drying it.
  • the dough is extruded into rods (e.g. of a diameter of 0.5 to 5 -mm), and these are later broken up (after drying) into pieces of a length of 0.5 to 10 mm.
  • the invention also provides a method of treating a hydrocarbon material, to remove acidic contaminants therefrom, by passing the hydrocarbon through a bed formed of particulate material in accordance with the invention.
  • an installation for treating hydrocarbon materials in accordance with the invention may suitably comprise two packed beds, the material to be treated being passed through the first bed (bed A) , and then the second bed (bed B) , in series.
  • the first bed has become exhausted or absorbed contaminant to its practical limit (as judged, for example, by the amount of contaminant present in the material issuing from the bed)
  • the bed may then be recharged with fresh material whilst the material to be treated is passed through the second bed (bed B) only.
  • the material to be treated is then passed, sequentially, through the original second bed (bed B) and thence to the original first bed (bed A) until the original second bed (bed B) has become exhausted, after which bed B is replenished and the cycle of operations recommenced.
  • bed B is replenished and the cycle of operations recommenced.
  • Absorbet materials having the compositions listed in Table 2 below were prepared by mixing sodium hydroxide liquid and the other (solid constituents to give a still paste. The paste was extruded, dried and granulated after which particles between 1 and 3.3 mm were separated, after which their moisture content was adjusted to 3% by weight.
  • the sample materials were tested under simulated use conditions.
  • a nitrogen gas with not more than 60 ppmv water and of known carbonyl sulphide (COS) concentration was passed upwards through a 3mm diameter, 120mm high sample bed at a GHSV of 700.
  • the concentration of COS in the exit gas was monitored by a gas chromatographic technique. The breakthrough times equivalent to 90% and 50% removal efficiency were noted.
  • the results are summarised in table 3.
  • Example 5 The product of Example 5 was further tested under simulated use conditions. This time a nitrogen gas with a moisture level equivalent to 50% of its saturation capacity and of known carbonyl sulphide (COS) concentration was passed upwards through a 3mm diameter, 120mm high sample bed at a GHSV of 700. The concentration of COS in the exit gas was again monitored by a gas chromatographic technique. The breakthrough times equivalent to 90% and 50% removal efficiency were noted. Table 4 (Breakthrough time at 50% saturation)

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Water Supply & Treatment (AREA)
  • General Chemical & Material Sciences (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

Matériau absorbant particulaire solide, servant à enlever des contaminants acides d'hydrocarbures, ce matériau absorbant comprenant de l'hydroxyde de sodium et/ou de l'hydroxyde de potassium; de l'alumine et/ou de l'oxyde de zinc, de la chaux vive; et, éventuellement de l'oxyde cuivrique. Un procédé de purification d'un hydrocarbure contenant un contaminant acide consiste à faire passer l'hydrocarbure à travers un lit d'un matériau absorbant particulaire.
EP93911924A 1992-05-11 1993-05-06 Procede de purification Withdrawn EP0640011A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9210081A GB2267096A (en) 1992-05-11 1992-05-11 Purification of hydrocarbons
GB9210081 1992-05-11
PCT/GB1993/000935 WO1993023159A1 (fr) 1992-05-11 1993-05-06 Procede de purification

Publications (1)

Publication Number Publication Date
EP0640011A1 true EP0640011A1 (fr) 1995-03-01

Family

ID=10715299

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93911924A Withdrawn EP0640011A1 (fr) 1992-05-11 1993-05-06 Procede de purification

Country Status (3)

Country Link
EP (1) EP0640011A1 (fr)
GB (1) GB2267096A (fr)
WO (1) WO1993023159A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6168769B1 (en) 1993-12-06 2001-01-02 Phillips Petroleum Company Olefin purification
US5972303A (en) * 1994-01-18 1999-10-26 Phillips Petroleum Company Olefin purification
US6013600A (en) * 1997-05-23 2000-01-11 Laroche Industries Inc. Alumina bodies containing alkali or alkaline earth metal compounds
US5856265A (en) * 1997-05-23 1999-01-05 La Roche Industries, Inc. Alumina body formation using high pH
US6159898A (en) * 1997-05-23 2000-12-12 Uop Llc Alumina bodies containing alkali or alkaline earth metal compounds
US5840099A (en) * 1997-09-16 1998-11-24 Air Products And Chemicals, Inc. Process for the removal of water, CO2, ethane and C3 + hydrocarbons from a gas stream
GB9802439D0 (en) * 1998-02-06 1998-04-01 Ici Plc Absorbents
IL130882A0 (en) * 1999-07-11 2001-01-28 Solmecs Israel Ltd Sorbent composition

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1904381A (en) * 1929-11-11 1933-04-18 Universal Oil Prod Co Refining of hydrocarbon oils
US2423689A (en) * 1945-05-18 1947-07-08 Dewey And Almy Chem Comp Soda lime composition
US2423688A (en) * 1945-05-18 1947-07-08 Dewey And Almy Chem Comp Soda lime composition
US2479520A (en) * 1945-08-01 1949-08-16 Willson Products Inc Gas-absorbing material and process of making same
GB938716A (en) * 1961-07-21 1963-10-02 Exxon Research Engineering Co Purification of olefinic gases containing carbonyl sulfide
NL156117B (nl) * 1968-06-17 1978-03-15 Stamicarbon Werkwijze voor het zuiveren van etheen en/of propeen.
DE2043848C3 (de) * 1970-09-04 1981-03-19 Basf Ag, 6700 Ludwigshafen Verfahren zur Entfernung von gasförmigen Halogenverbindungen aus Gasen
GB1421798A (en) * 1973-08-21 1976-01-21 Dow Chemical Co Neutralization of acidic contaminants in organic process streams
FR2295782A1 (fr) * 1974-12-27 1976-07-23 Inst Francais Du Petrole Procede d'epuration d'un gaz contenant du sulfure d'hydrogene et masses de contact utilisables a cet effet
US4571445A (en) * 1984-12-24 1986-02-18 Shell Oil Company Process for removal of sulfur compounds from conjugated diolefins
DE3543530A1 (de) * 1985-12-10 1987-10-15 Saxonlord Ltd Verfahren zur herstellung von u.a. alkali- und/oder erdalkalimetalloxide enthaltenden pellets
JPS6380830A (ja) * 1986-09-25 1988-04-11 Osaka Oxygen Ind Ltd 半導体工業における排ガス処理剤
GB8714232D0 (en) * 1987-06-17 1987-07-22 Ici Plc Sulphur compounds removal
US4835338A (en) * 1987-08-31 1989-05-30 Aluminum Company Of America Process for removal of carbonyl sulfide from organic liquid by adsorption using alumina adsorbent capable of regeneration
CA2014500C (fr) * 1989-04-17 1996-09-24 Yoshitsugu Sakata Absorbant de gaz acide et procede pour sa production

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9323159A1 *

Also Published As

Publication number Publication date
GB9210081D0 (en) 1992-06-24
WO1993023159A1 (fr) 1993-11-25
GB2267096A (en) 1993-11-24

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