中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

18 records (took 0.022 seconds)

    Production of acetylene
    1.
    发明专利
    Production of acetylene 未知

    公开(公告)号：GB1047045A

    公开(公告)日：1966-11-02

    申请号：GB310964

    申请日：1964-01-24

    Applicant: BASF AG

    Inventor： BUSCHMANN KARL ,  FREY OTTO ,  MEYER HERMANN ,  TELTSCHIK WALTER

    IPC: C07C7/11

    Abstract: In the production of acetylene from hydrocarbons by partial combustion, quenching and separating carbon black from the gas by contacting with an aromatic hydrocarbon oil, naphthalene or an a -halonaphthalene is used as the aromatic hydrocarbon oil. A portion of the naphthalene containing carbon black may be freed from carbon black and may be recycled alone or in admixture with naphthalene containing carbon black. The carbon content of the recycle naphthalene is preferably 10 to 30% by weight and naphthalene vapours entrained in the quenched gas are condensed by aromatic hydrocarbon oils having a boiling point of 80 DEG to 170 DEG C. and a specific gravity less than 0.95 which oils are preferably free from polymerizable constituents. The heat transmitted to the naphthalene may be used to preheat the hydrocarbons to be reacted, or to produce steam.

    2.
    发明专利
    未知

    公开(公告)号：FR1319860A

    公开(公告)日：1963-03-01

    申请号：FR894647

    申请日：1962-04-16

    Applicant: BASF AG

    Inventor： DANZ WILLI ,  FREY OTTO ,  KITTEL ERICH ,  MARKERT FERDINAND ,  TELTSCHIK WALTER

    IPC: B01D51/10 ,  C07C2/78 ,  C07C7/11 ,  C07C11/24

    Abstract: In the production of acetylene by subjecting hydrocarbons to high temperatures, the hot gas is quenched in a single stage by injecting a hydrocarbon oil boiling above 150 DEG C. in a volume ratio to gas (measured under standard conditions) of at least 1 : 100 without any appreciable cracking of the oil and separating the hot oil containing carbon black from the gas. The oil is preferably an aromatic oil and useful heat is extracted from it before its reuse; the carbon black content is preferably reduced to below 35% by weight e.g. by removing part of the oil and replacing this by fresh oil. The gas is preferably also later washed with an oil boiling in the range 80-450 DEG C. having a specific gravity below 0.95. The examples relate to the partial combustion of gasoline and of methane; reference is also made to heating hydrocarbons by electric discharge and exposure to hot flame gases. Specification 893,504 is referred to.

    Improvements in the production of gaseous olefins by cracking hydrocarbons
    7.
    发明专利
    Improvements in the production of gaseous olefins by cracking hydrocarbons 未知

    公开(公告)号：GB824913A

    公开(公告)日：1959-12-09

    申请号：GB2364158

    申请日：1958-07-23

    Applicant: BASF AG

    Inventor： MARKERT FERDINAND ,  FUNK WILLIBALD ,  RICHTER GOTTFRIED ,  FREY OTTO

    IPC: C07C4/02 ,  C10G9/00

    Abstract: In the preparation of olefines, particularly ethylene and propylene, by the high-temperature cracking of hydrocarbons the gaseous reaction stream is quenched by supplying laterally to the stream one or more compact jets of liquid in an amount sufficient to cool the gas by at least 100 DEG C. and with a pressure head such that the liquid penetrates the gas and is disintegrated therein. Cracking may be effected in the presence of a fluidized solid, at 650-850 DEG C., and 1-5 atmospheres, e.g. in reactor 1, to which oxygen is also supplied. Solids are removed from the product stream by cyclone 2 from which the gaseous product leaves by pipe 4. Jets of liquid, e.g. liquid reaction products boiling below 300 DEG C., are injected into the gas from jets 6. Preferably the product of (a) the ratio of the pressure head of liquid to that of the gas (measured at the point of entry to the cooling chamber) and (b) the ratio of the mean diameter of the liquid jet to that of the gas, should lie in the range 0.01 to 3. Where several jets are used such products may differ for each jet and the jets may be in different planes. The walls of the cooling chamber are preferably washed with the cooling liquid, e.g. from atomizer 7. Products leave by line 8.

    Production of acetylene
    9.
    发明专利
    Production of acetylene 未知

    公开(公告)号：GB942436A

    公开(公告)日：1963-11-20

    申请号：GB1393362

    申请日：1962-04-11

    Applicant: BASF AG

    Inventor： DANZ WILLI ,  FREY OTTO ,  KITTEL ERICH ,  MARKERT FERDINAND ,  TELTSCHIK WALTER

    IPC: B01D51/10 ,  C07C2/78 ,  C07C7/11 ,  C07C11/24

    Abstract: In the production of acetylene by subjecting hydrocarbons to high temperatures, the hot gas is quenched in a single stage by injecting a hydrocarbon oil boiling above 150 DEG C. in a volume ratio to gas (measured under standard conditions) of at least 1 : 100 without any appreciable cracking of the oil and separating the hot oil containing carbon black from the gas. The oil is preferably an aromatic oil and useful heat is extracted from it before its reuse; the carbon black content is preferably reduced to below 35% by weight e.g. by removing part of the oil and replacing this by fresh oil. The gas is preferably also later washed with an oil boiling in the range 80-450 DEG C. having a specific gravity below 0.95. The examples relate to the partial combustion of gasoline and of methane; reference is also made to heating hydrocarbons by electric discharge and exposure to hot flame gases. Specification 893,504 is referred to.

    Autothermal cracking of liquid hydrocarbons with low conradson carbon
    10.
    发明专利
    Autothermal cracking of liquid hydrocarbons with low conradson carbon 未知

    公开(公告)号：GB933301A

    公开(公告)日：1963-08-08

    申请号：GB464462

    申请日：1962-02-07

    Applicant: BASF AG

    Inventor： FREY OTTO ,  JENKNER OTTO ,  SCHUHMANN KARL

    IPC: C07C4/02

    Abstract: In the production of olefins by the autothermal cracking of hydrocarbon oils at 630 DEG -850 DEG C. in the presence of a fluidized bed of coke particles and sufficient oxygen to supply the heat of reaction, the product boiling above 250 DEG C. being recycled, the feed has less than 2,5% Conradson carbon and is mixed with at least part of the oxygen and introduced laterally into the fluidized bed which is fluidized from below by a fluidizing agent which may contain further oxygen. The feed is preferably a crude petroleum, e.g. of Bahia or Sahara origin and is mixed with 20-100% of the oxygen and also steam if desired. The recycle is introduced with the feed or separately and may also be mixed with oxygen in the latter case. Mixing is preferably effected at the point of injection, e.g. using a nozzle having an annular feed for oxygen and an inner feed for the oil. The nozzle or nozzles may be between 20 cms. above the bottom to 1m. below the top of the fluidized bed.

Patent Agency Ranking