Classifications

• • 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
  • C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
  • C10G1/02—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal by distillation
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
  • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
  • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
• • 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
  • C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
  • C10G1/04—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal by extraction
  • C10G1/045—Separation of insoluble materials

Definitions

• the invention has for its object the dust before the condensation of the oil, d. H. to be deposited above the dew point of the condensable hydrocarbons. This can be done by dedusting in the hot gas stream immediately after smoldering.
• a reducing hot gas with the constituents nitrogen, carbon dioxide, carbon monoxide, water vapor, hydrogen and methane as well as small amounts of higher hydrocarbons generated by the combustion of natural gas at air deficiency cannot be treated with electrofiltration in the required temperature range, since the difference between corona threshold voltage and breakdown voltage increases is low.
• this gas is used to smear oil shale and then contains higher condensable hydrocarbons and oil shale dust, it can be successfully subjected to electrofiltration at temperatures of 300 - 650 ° C.
• the gas produced during smoldering can also be used as a heat transfer medium after it has been freed from the condensable constituents and heated either directly by partial combustion with an oxygen-containing gas or indirectly in a heat exchanger to a temperature above the smoldering temperature.
• dust removal by electrofiltration is also possible if the heat necessary for the smoldering is used in a different way, e.g. B. by heated solids, through reactor walls, through the partial combustion of the remaining carbon on the slate, etc., if higher carbon dioxide is present in the carbonization gas in addition to dust. In these cases, a stable voltage field suitable for dust separation can be built up.
• the temperatures at which the carbonization gas is passed through the electrostatic precipitators are between 300 and 650 ° C, usually over 400 ° C and preferably in the range of 470 -. - 550 ° C.
• the gas speed is in the usual range between 0.5 and 3.0 m / s, the alley width is more in the lower range of the usual 50 - 100 mm.
• the DC voltage applied to the filter is approximated in a manner known per se to the maximum possible breakdown voltage by slowly increasing to the flashover, H reduction after the flashover and renewed approximation to the flashover voltage.

Landscapes

• Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Life Sciences & Earth Sciences (AREA)
• Wood Science & Technology (AREA)
• Chemical Kinetics & Catalysis (AREA)
• General Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Electrostatic Separation (AREA)
• Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
• Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
• Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Applications Claiming Priority (2)

Publications (3)

Family

ID=6105405

Family Applications (1)

Country Status (9)

Cited By (1)

Families Citing this family (3)

Family Cites Families (11)

• 1980
  • 1980-06-25 DE DE19803023727 patent/DE3023727A1/de not_active Ceased
• 1981
  • 1981-04-28 YU YU1113/81A patent/YU40873B/xx unknown
  • 1981-06-01 MA MA19374A patent/MA19165A1/fr unknown
  • 1981-06-09 ES ES502889A patent/ES502889A0/es active Granted
  • 1981-06-12 AU AU71671/81A patent/AU542498B2/en not_active Ceased
  • 1981-06-13 DE DE8181104563T patent/DE3172319D1/de not_active Expired
  • 1981-06-13 EP EP81104563A patent/EP0049325B1/fr not_active Expired
  • 1981-06-16 JO JO19811114A patent/JO1114B1/en active
  • 1981-06-24 BR BR8103973A patent/BR8103973A/pt unknown
  • 1981-06-24 US US06/277,028 patent/US4365976A/en not_active Expired - Fee Related

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