Method for reducing pressure drop in a packed column
AssigneeEthyl Corporation
InventorsSundareswaran P. Iyer, Robert H. Jones, Jr., David R. Smith
Life of this patent
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Abstract
This invention relates to a method for decreasing the pressure drop in a column used for contacting at least one gaseous stream and at least one liquid stream, wherein a portion of the pressure drop across the column is caused by foam. The method comprises injecting a non-foamable liquid into the gaseous stream at a location, in an amount, and at a temperature which are sufficient to decrease the total pressure drop across the column.
Claims20
A method for reducing pressure drop in a packed column containing at least one packed section and having (i) at least one circulating, foamable liquid stream;
- and (ii) at least one gaseous stream whereby contact between (i) and (ii) in the packed column produces a foam sufficient to increase pressure drop across the packed section of the column and wherein the column has a flooding pressure drop, which method comprises injecting a non-foamable liquid into the column at a location, in an amount, and at a temperature which are sufficient to reduce the pressure drop in the packed column to less than 90 percent of the flooding pressure drop.
A method for reducing pressure drop in a column for contacting at least one gaseous stream and at least one liquid stream, wherein a portion of the pressure drop through the column is caused by foam, the method comprising, injecting an amount of an essentially non-foamable liquid into the gaseous stream prior to contact of the gaseous stream with the liquid stream, wherein the temperature and amount of non-foamable liquid is sufficient to decrease the pressure drop across the column by at least about 20 percent based on the total pressure drop across the column prior to injecting the non-foamable liquid.
Dependencies are inferred from the claim text.