PARTIAL OXIDATION PROCESS FOR PRODUCING A STREAM OF HOT PURIFIED GAS

    公开(公告)号:CA2124049C

    公开(公告)日:2005-11-15

    申请号:CA2124049

    申请日:1994-05-20

    Abstract: A partial oxidation process for the production of a stream of hot clean gas substantially free from particulate matter, ammonia, alkali metal compounds, halides and sulfur-containing gas for use as synthesis gas, reducing gas, or fuel gas. A hydrocarbonaceous fuel comprising a solid carbonaceous fuel with or without liquid hydrocarbonaceous fuel or gaseous hydrocarbon fuel, wherein said hydrocarbonaceous fuel contains halides, alkali metal compounds, sulfur, nitrogen and inorganic ash containing components, is reacted in a gasifier by partial oxidation to produce a hot raw gas stream comprising H2, CO, CO2, H2O, CH4 NH3, HCl, HF, H2S, COS, N2, Ar, particulate matter, vapor phase alkali metal compounds, and molten slag. The hot raw gas stream from the gasifier is split into two streams which are separately deslagged, cleaned and recombined. Ammonia in the gas mixture is catalytically disproportionated into N2 and H2. The ammonia-free gas stream is then cooled and halides in the gas stream are reacted with a supplementary alkali metal compound to remove HCl and HF. Alkali metal halides, vaporized alkali metal compounds and residual fine particulate matter are removed from the gas stream by further cooling and filtering. The sulfur-containing gases in the process gas stream are then reacted at high temperature with a regenerable sulfur-reactive mixed metal oxide sulfur sorbent material to produce a sulfided sorbent material which is then separated from the hot clean purified gas stream having a temperature of at least 1000.degree.F.

    2.
    发明专利
    未知

    公开(公告)号:DE69415872T2

    公开(公告)日:1999-06-10

    申请号:DE69415872

    申请日:1994-06-02

    Abstract: The process produces a stream of hot clean gas substantially free from particulate matter, ammonia, alkali metal compounds, halides and sulfur-containing gas for use as synthesis gas, reducing gas, or fuel gas. A solid carbonaceous fuel with or without liquid or gaseous hydrocarbonaceous fuel and containing halides, alkali metal compounds, sulfur, nitrogen and inorganic ash, is reacted by partial oxidation to produce a hot raw gas stream comprising H2, CO, CO2, H2O, CH4, NH3, HCl, HF, H2S, COS, N2, Ar, particulate matter, vapor phase alkali metal compounds, and molten slag. The hot raw gas stream is split into two streams which are separately deslagged, cleaned and recombined. Ammonia in the gas mixture is catalytically disproportionated into N2 and H2. The ammonia-free gas stream is then cooled and halides in the gas stream are reacted with a supplementary alkali metal compound to remove HCl and HF. Alkali metal halides, vaporized alkali metal compounds and residual fine particulate matter are removed from the gas stream by further cooling and filtering. The sulfur-containing gases in the process gas stream are then reacted at high temperature with a mixed metal oxide sulfur sorbent material to produce a sulfided sorbent material which is then separated from the hot clean purified gas stream having a temperature of at least 540 DEG C.

    3.
    发明专利
    未知

    公开(公告)号:DE69101970T2

    公开(公告)日:1994-08-18

    申请号:DE69101970

    申请日:1991-02-26

    Abstract: An apparatus for measuring temperatures inside enclosures or conduits containing hot gases laden with entrained solids using a pyrometer (1), utilizing an optical access port consisting of a high strength sight tube (7), a safety valve (5), a double sight glass (21,22), various purge connections (35-37) and provisions for optical alignment. A dynamic purge system keeps the optical sight path clear during normal operation, and clears the path if it begins to become occluded during operational upsets within the enclosure or conduit. The optical access port is mounted on the exterior wall of the vessel or conduit (8).

    6.
    发明专利
    未知

    公开(公告)号:DK501088A

    公开(公告)日:1990-03-10

    申请号:DK501088

    申请日:1988-09-09

    Abstract: A thermocouple-based temperature monitoring device for use in a high temperature reactor, wherein a carbonaceous fuel is burned to produce a usable gas and a residual slag. The thermocouple wires 26, 27 are enclosed in a gas- tight metal protection sheath 29 which is inserted inside a multi-segment refractory thermal well 32. An annular space 38 formed between the sheath and the thermal well is continuously purged with a small quantity of a gas or a gaseous mixture. Gasification products from the residual slag, which are normally in a form that reacts with and destroys the thermocouple wires, are neutralized within the annular space 38 by reaction with the purge gas mixture.

    7.
    发明专利
    未知

    公开(公告)号:ES2125409T3

    公开(公告)日:1999-03-01

    申请号:ES94303954

    申请日:1994-06-02

    Abstract: The process produces a stream of hot clean gas substantially free from particulate matter, alkali metal compounds, hydrogen halides, hydrogen cyanide, sulfur-containing gases, and with or without ammonia for use as synthesis gas, reducing gas, or fuel gas. A pumpable fuel selected from liquid hydrocarbonaceous fuel or liquid emulsions thereof, an aqueous slurry of petroleum coke, and mixtures thereof and containing halides, alkali metal compounds, sulfur, nitrogen and inorganic ash, it reacted by partial oxidation to produce a hot raw gas stream comprising H2, CO, CO2, H2O, CH4, NH3, HCN, HC1, HF, H2S, COS, N2, Ar, particulate matter, vapor phase alkali metal compounds, and molten slag. The hot raw gas stream is cooled and cleaned. Optionally, ammonia is removed by being catalytically disproportionated into N2 and H2. The process gas stream is cooled and halides and HCN in the gas stream are reacted with a supplementary alkali metal compound to remove HC1, HF and HCN. Alkali metal halides and alkali metal cyanide, vaporized alkali metal compounds and residual fine particulate matter are removed by further cooling and filtering. The sulfur-containing gases in the process gas stream are then reacted at high temperature with a mixed metal oxide sulfur sorbent material to produce a sulfided sorbent material which is then separated from the hot clean purified gas stream having a temperature of at least 540 DEG C.

    8.
    发明专利
    未知

    公开(公告)号:DK0501049T3

    公开(公告)日:1994-06-13

    申请号:DK91301514

    申请日:1991-02-26

    Abstract: An apparatus for measuring temperatures inside enclosures or conduits containing hot gases laden with entrained solids using a pyrometer (1), utilizing an optical access port consisting of a high strength sight tube (7), a safety valve (5), a double sight glass (21,22), various purge connections (35-37) and provisions for optical alignment. A dynamic purge system keeps the optical sight path clear during normal operation, and clears the path if it begins to become occluded during operational upsets within the enclosure or conduit. The optical access port is mounted on the exterior wall of the vessel or conduit (8).

    10.
    发明专利
    未知

    公开(公告)号:DE69415728T2

    公开(公告)日:1999-06-10

    申请号:DE69415728

    申请日:1994-06-02

    Abstract: The process produces a stream of hot clean gas substantially free from particulate matter, alkali metal compounds, hydrogen halides, hydrogen cyanide, sulfur-containing gases, and with or without ammonia for use as synthesis gas, reducing gas, or fuel gas. A pumpable fuel selected from liquid hydrocarbonaceous fuel or liquid emulsions thereof, an aqueous slurry of petroleum coke, and mixtures thereof and containing halides, alkali metal compounds, sulfur, nitrogen and inorganic ash, it reacted by partial oxidation to produce a hot raw gas stream comprising H2, CO, CO2, H2O, CH4, NH3, HCN, HC1, HF, H2S, COS, N2, Ar, particulate matter, vapor phase alkali metal compounds, and molten slag. The hot raw gas stream is cooled and cleaned. Optionally, ammonia is removed by being catalytically disproportionated into N2 and H2. The process gas stream is cooled and halides and HCN in the gas stream are reacted with a supplementary alkali metal compound to remove HC1, HF and HCN. Alkali metal halides and alkali metal cyanide, vaporized alkali metal compounds and residual fine particulate matter are removed by further cooling and filtering. The sulfur-containing gases in the process gas stream are then reacted at high temperature with a mixed metal oxide sulfur sorbent material to produce a sulfided sorbent material which is then separated from the hot clean purified gas stream having a temperature of at least 540 DEG C.

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