Method of treating a gas stream
First Claim
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1. A method of treating a gas stream containing a silicon-containing gas, the method comprising the steps of:
- conveying the gas stream to a pump;
supplying to the pump an oxidant for oxidising the silicon-containing gas within the pump and a liquid; and
exhausting from the pump said liquid containing a by-product of the oxidation of the silicon-containing gaswherein the liquid comprises water or an aqueous solution.
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Abstract
A method of treating a gas stream containing silane or other silicon-containing gas is described, in which the gas stream is conveyed to a liquid ring pump or screw-mechanism pump, to which are also supplied an oxidant for oxidising the silicon-containing gas within the pump, and a liquid for forming a liquid ring or intermittent flushing within the pump. A liquid stream containing said liquid and a by-product of the oxidation of the silicon-containing gas is exhaust from the pump.
9 Citations
33 Claims
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1. A method of treating a gas stream containing a silicon-containing gas, the method comprising the steps of:
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conveying the gas stream to a pump; supplying to the pump an oxidant for oxidising the silicon-containing gas within the pump and a liquid; and exhausting from the pump said liquid containing a by-product of the oxidation of the silicon-containing gas wherein the liquid comprises water or an aqueous solution. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of treating a gas stream containing a pyrophoric gas, the method comprising the steps of:
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conveying the gas stream to a pump; supplying to the pump an oxidant for oxidising the pyrophoric gas within the pump and a liquid; and exhausting from the pump said liquid containing a by-product of the oxidation of the pyrophoric gas, wherein the liquid comprises water or an aqueous solution. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. Apparatus for treating a gas stream containing a silicon-containing gas, the apparatus comprising:
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a pump for receiving the gas stream; supply means connected to the pump for supplying an oxidant for oxidising the silicon-containing gas within the pump, and a liquid; and conveying means connected to the pump for conveying from the pump liquid containing a by-product of oxidation of the silicon-containing gas within the pump wherein the liquid comprises water or an aqueous solution. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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Specification