Use of expanded agents for minimizing corrosion and build-up of deposits in flue-gas systems
AssigneeApollo Technologies International Corp.
InventorsIra Kukin, William Carmen Pepe
Life of this patent
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Abstract
A method for minimizing corrosion and the build-up of deposits on surfaces of a flue-gas system exposed to moist substances and elevated temperatures, and particularly those surfaces which are used to convey other additives to the system and the surfaces of gas/gas heaters which receive the output from scrubbers, which method involves adding to the system, particularly in those conduits and at the surfaces of the gas/gas heater, generally inert bulking agents such as perlite and vermiculite in expanded form, such agents, apparently by acting under the operating conditions to which they are subjected to retain substantial quantities of water without becoming dissolved, accomplishing the desired results.
Claims10
The method for the minimization of corrosion and/or build-up of deposits on structural surfaces of a flue-gas system which are exposed to the flow of moist substances at elevated temperatures which comprises adding to said systems before said substances come into contact with said surfaces, either alone or in combination with other additives, a generally inert bulking agent in expanded form which is capable of retaining substantial quantities of water without becoming dissolved within the water to any significant degree.
The method for the minimization of corrosion and build-up of deposits on structural surfaces of a flue-gas system in which the output of a furnace is fed sequentially to a gas/gas heater, a scrubber, and back to the gas/gas heater and into which significant quantities of substances are injected into said gas/gas heater, said method comprising injecting into said system in advance of the gas/gas heater a generally inert bulking agent in expanded form which is capable of retaining substantial quantities of water without becoming dissolved within the water to any significant degree.
Dependencies are inferred from the claim text.