APPARATUS AND PROCESS FOR GASIFICATION OF SOLID HYDROCARBONACEOUS FUELS IN DUST FORM IN AN ENTRAINED FLOW

摘要

A gasification reactor for gasification of solid hydrocarbonaceous fuels in dust form in an entrained flow, comprising a first reaction space disposed at the top of the reactor, in the upper region of which is disposed a feed apparatus for feedstocks, the side walls of which are equipped with pipes having internal cooling in the form of a membrane wall or pipe coils, on which liquid slag can run off freely without the surface of this slag solidifying in the process, and on the underside of which is provided an orifice for slag running off and synthesis gas exiting, with connection at the bottom of the orifice to a second space in which the crude gas is kept dry and cooled by radiative cooling, and an apparatus for production of a water mist is provided, the second space is connected at the bottom to a third space in which feed devices for water are provided, the third space is connected at the bottom to an accommodating device for a water bath which also has a removal apparatus for a water-slag mixture, and a removal apparatus for crude gas from the reactor provided at the bottom or side of the third space has an axially symmetric extension space which forms the transition from the first to the second space, and the lower edge of which is arranged at the same height or above the height at which the free-falling water mist emerges.