1.
    发明专利
    未知

    公开(公告)号:BRPI0518311A2

    公开(公告)日:2008-11-11

    申请号:BRPI0518311

    申请日:2005-11-16

    Applicant: BASF AG

    Abstract: The invention provides a process for hydrogenating streams in plants for producing alkenes by catalytic dehydrogenation of light alkanes, and also an apparatus for carrying out the process. The entire hydrocarbon stream to the dehydrogenation reactor, consisting of fresh and recycled alkane, is subjected upstream of the dehydrogenation reactor to a full hydrogenation of all unsaturated hydrocarbons present therein. This drastically reduces coke formation in the dehydrogenation reactor. The energy demand for the preheating of the reactant stream to reaction temperature is reduced since the energy released in the exothermic hydrogenation remains virtually fully in the hydrocarbon stream.

    4.
    发明专利
    未知

    公开(公告)号:DE102006017906A1

    公开(公告)日:2007-10-25

    申请号:DE102006017906

    申请日:2006-04-18

    Applicant: LINDE AG BASF AG

    Abstract: The invention relates to a method and a device for putting into service a reactor and a catalyst, especially a catalyst and a reactor for dehydrogenating a hydrocarbon-containing charge in a plant for producing olefins. Before being put into service, the catalyst and the reactor run through a plurality of oxidation and reduction phases, thereby releasing the chloride contained in the catalyst. The released chloride is carried off into the atmosphere in a gaseous form.

    METHOD AND DEVICE FOR COMPLETELY HYDROGENATING A HYDROCARBONFLOW

    公开(公告)号:CA2586321A1

    公开(公告)日:2006-05-26

    申请号:CA2586321

    申请日:2005-11-16

    Applicant: BASF AG

    Abstract: The invention provides a process for hydrogenating streams in plants for producing alkenes by catalytic dehydrogenation of light alkanes, and also an apparatus for carrying out the process. The entire hydrocarbon stream to the dehydrogenation reactor, consisting of fresh and recycled alkane, is subjected upstream of the dehydrogenation reactor to a full hydrogenation of all unsaturated hydrocarbons present therein. This drastically reduces coke formation in the dehydrogenation reactor. The energy demand for the preheating of the reactant stream to reaction temperature is reduced since the energy released in the exothermic hydrogenation remains virtually fully in the hydrocarbon stream.

    7.
    发明专利
    未知

    公开(公告)号:DE102004055826A1

    公开(公告)日:2006-05-24

    申请号:DE102004055826

    申请日:2004-11-19

    Applicant: BASF AG LINDE AG

    Abstract: The invention provides a process for hydrogenating streams in plants for producing alkenes by catalytic dehydrogenation of light alkanes, and also an apparatus for carrying out the process. The entire hydrocarbon stream to the dehydrogenation reactor, consisting of fresh and recycled alkane, is subjected upstream of the dehydrogenation reactor to a full hydrogenation of all unsaturated hydrocarbons present therein. This drastically reduces coke formation in the dehydrogenation reactor. The energy demand for the preheating of the reactant stream to reaction temperature is reduced since the energy released in the exothermic hydrogenation remains virtually fully in the hydrocarbon stream.

    8.
    发明专利
    未知

    公开(公告)号:NO932555D0

    公开(公告)日:1993-07-14

    申请号:NO932555

    申请日:1993-07-14

    Applicant: LINDE AG BASF AG

    Abstract: The invention relates to a process and a separation system for removing particles, in particular soot particles, from particle-containing process gas streams occurring in chemical or petrochemical plants. According to the invention, the particle removal is carried out in a partly thermally regenerable separation system. The particles are advantageously removed from the gas stream in a two-stage separation system, the first stage being composed of centrifugal separators, preferably multicyclones, and the second stage being composed of fine filters made of sintered metals, preferably of ferritic sintered metals. For the regeneration, the temperature is increased to a value above the ignition temperature of soot and, if required, an oxygen-containing auxiliary gas is added. The regeneration is preferably carried out periodically.

    9.
    发明专利
    未知

    公开(公告)号:DE102006017908A1

    公开(公告)日:2007-10-25

    申请号:DE102006017908

    申请日:2006-04-18

    Applicant: BASF AG LINDE AG

    Abstract: The invention relates to a method and a device for the controlled regeneration of a catalyst and of a fired reactor, especially a catalyst and a reactor in a plant for producing olefins from a hydrocarbon-containing charge. During the regeneration phase of the catalyst for recovering the catalytic activity, the burners of the reactor are switched off. After the regeneration phase, the burners are re-ignited by means of inbuilt pilot burners. The pilot burners are monitored and their capacity is adjusted in such a manner that the heat loss of the reactor during the regeneration phase of the catalyst is compensated for.

Patent Agency Ranking