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    2.
    发明专利
    未知

    公开(公告)号：DE19805481A1

    公开(公告)日：1999-08-12

    申请号：DE19805481

    申请日：1998-02-11

    Applicant: DEGUSSA

    Inventor： MENNERICH HEIKO ,  AUFDERHEIDE EBERHARD DR ,  JESCHAR RUDOLF PROF ,  BIRTIGH ANDREAS DR ,  GAIL ERNST DR ,  KRIEGERIS HANS-HERMANN ,  JENNES RALF

    IPC: B01J8/06 ,  B01J12/00 ,  B01J19/00 ,  B01J19/24 ,  C01B3/06 ,  C01C3/02 ,  C01B3/02

    Abstract: The invention relates to a tube furnace (10) for continuous endothermic gas reactions, comprising one or more chambers (100), each of which (100) is divided into a heating chamber (101), in which reaction tubes (110) are placed in which reaction gases are able to circulate, and a combustion chamber (102) with at least one assigned burner (120). The burner(s) (120) are arranged in such a way that the combustible gases produced during operation flow into the assigned heating chamber (101) and from the outside heat the reaction tubes (110) positioned in said heating chamber to the temperature required for the reaction. At least one element for circulating the combustible gases is arranged in the chamber (100). According to the invention, at least one flue gas outlet device which is preferably configured as a heat recovery unit (121) and through which the combustible gases leave the reactor is positioned directly adjacent to the burner(s). The preferred circulating element is a combination of burner free jet (134) and diffuser (135). The tube furnace is suitable for the production of hydrocyanic acid according to the "hydrocyanic acid - methane - ammonia" method.

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