Abstract:
A fly-stream gasification device for a process that employs powdery or liquid fuels—where liquid fuels are to be understood as oils, or oils containing solids, and water or oil suspensions containing fuels ground to the consistency of dust or inorganic additives—at pressures of between ambient pressure and 8 MPa and gasification temperatures of between 1,200 and 1,900° C., and which has a gasification means containing free oxygen, comprising a gasification chamber, a quenching device, and an element that belongs to the crude gas tract and ducts the crude gas, is embodied in such a way that an element ducting crude gas is made of heat-resistant carbon steel and furnished on surfaces in contact with the crude gas with an anti-stick layer able to withstand a temperature of 250° C. for preventing the carbonates that form from sticking.
Abstract:
While ensuring technical safety and a short start-up time the invention permits the operation of autothermic partial oxidation of fuels processed into pulverized fuel such as lignite and bituminous coals, petroleum cokes, solid grindable carbon-containing residues, as well as solid-liquid suspensions or slurries, with a gasification agent containing oxygen at operating pressures of up to 8 MPa (80 bar). The selective configuration of the fail-safe monitoring of the gasification process only the supply of the main fuel is cut off. Through the continued operation of the pilot and ignition burner the reactor is kept at operating pressure and after the fault has been rectified fuel gasification can be restarted with the pilot and ignition burner without a complicated placement and pulling of a starter burner and subsequent pressurization of the reactors.
Abstract:
A method and device for cooling hot crude gas and slag from entrained flow gasification of liquid and solid combustibles at crude gas temperatures ranging from 1,200 to 1,800° C. and at pressures of up to 80 bar in a cooling chamber disposed downstream of the gasification reactor by injecting water. The cooling water is distributed, with a first portion being finely dispersed into to cooling chamber and a second portion being fed at the bottom into an annular gap provided between the pressure-carrying tank wall and an incorporated metal apron for protecting said pressure-carrying tank wall. The second portion of the cooling water flows upward in the annular gap and trickles down the inner side of the metal apron in the form of a water film.
Abstract:
A method and device for the gasification of solid fuels such as bituminous coal, lignite coal, and petroleum coke in the flue stream, with an oxidizing medium containing free oxygen by partial oxidation at pressures between atmospheric pressure and 80 bar, and at temperatures between 1200 and 1900° C., consisting of the process steps of pneumatic metering for pulverized fuel, gasification in a flue stream reactor with cooled reaction chamber contour, partial quenching, cooling, crude gas scrubbing, and partial condensation.
Abstract:
The invention relates to a process for the utilization of a feedstock essentially comprising nitrogen-organic compounds, in which the utilization takes place by gasifying the feedstock under normal pressure or an increased pressure, up to 40 bar, at temperatures at least about 900° C., and preferably between 1100° C., and 1600° C., by partial oxidation using a gasifying medium containing free oxygen, as a flame reaction in an entrained bedgasifier. An apparatus for carrying out the process is described.