Abstract:
An improved burner (10) for partial oxidation process gas generators is provided which has annular passages (26) formed between coaxially aligned conduits (13, 24) extending from upstream sources to the downstream reaction zone. An outer coolant jacket (21), internally baffled (22) from optimum coolant flow and sized for minimum downstream area surrounds a recessed and fuel/oxidizer delivery conduit (13) ending in a nozzle. The central delivery conduit(13) is not attached to the coolant jacket and the annular space between them (26) is connected to a high pressure supply of relatively inert gas which can periodically be vented through the annular space to prevent slag build up on the nozzle (20) or coolant jacket (21).
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.
Abstract:
An assembly of a quench ring and dip tube is for use with a reactor vessel. It is particularly beneficial where the reactor generates large quantities of molten slag. The quench ring is mounted against the floor of the reactor vessel for cooling same, and there are a plurality of spray passages directing cooling water against the inside of the dip tube which surrounds the ring at the upper end, while extending into a bath of quench water.
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.
Abstract:
Slag deposits in partial oxidation reactors, like coke gasifiers, are removed by controlling temperature and slag derivatization. Derivatized slag is fluidized and leaves the reactor without solidifying in and filling the reactor outlet.
Abstract:
Part of CO-rich syngas, including volatile metal or any acid impurities, reacts with water making cleaned, heated, H2-enriched syngas. The rest of the impure CO-rich syngas is combined with hot, H2-enriched syngas making cleaned, H2-rich syngas, useful for making methanol or oxo compounds.
Abstract:
An assembly of a quench ring and dip tube is for use with a reactor vessel. It is particularly beneficial where the reactor generates large quantities of molten slag. The quench ring is mounted against the floor of the reactor vessel for cooling same, and there are a plurality of spray passages directing cooling water against the inside of the dip tube which surrounds the ring at the upper end, while extending into a bath of quench water.