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US 2022/0088531 A1Published application
Combustion system incorporating temperature swing adsorptive gas separation
AssigneeInventys Thermal Technologies Inc.
InventorsAndre BOULET, Soheil KHIAVI
Life of this patent
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Abstract
A combustion system and process of operating the combustion system incorporating an electrostatic precipitator, an optional flue gas desulfurizer, and a temperature swing adsorptive gas separator, for post-combustion emission abatement is provided. A steam stream may be employed as a first regeneration stream for the temperature swing adsorptive gas separator. A fluid stream at a suitable temperature for regeneration of at least one adsorbent material in the temperature swing adsorptive gas separator may be employed as a second regeneration stream where the fluid stream may be recovered from an auxiliary heater.
Claims19
A process of operating a combustion system, the process comprising:
- a. admitting an primary oxidant stream and a secondary oxidant stream into an oxidant preheater forming a preheated primary oxidant stream, and a preheated secondary oxidant stream, admitting a fuel stream to combine with said preheated primary oxidant stream forming a combined fuel stream;
- b. admitting said preheated secondary oxidant stream and said combined fuel stream into a boiler, combusting said preheated secondary oxidant stream and said combined fuel stream, producing a combustion gas stream comprising particulates and at least a first component;
- c. admitting said combustion gas stream into said oxidant preheater;
- d. admitting said combustion stream into a particulate collector and removing at least a portion of said particulates to produce a first treated combustion gas stream depleted in particulates relative to said combustion gas stream;
- e. admitting said first treated combustion gas stream into a flue gas desulfurizer to produce a third treated combustion gas stream depleted in sulfur relative to said combustion gas stream;
- f. admitting at least a portion of said third treated combustion gas stream into a direct contact cooler to produce a feed stream;
- g. admitting said feed stream into a temperature swing adsorptive gas separator to adsorb at least a portion of said first component of said feed stream on at least one adsorbent material in said temperature swing adsorptive gas separator and recovering a first product stream from said temperature swing adsorptive gas separator depleted in said first component relative to said feed stream;
- h. admitting a first regeneration stream into said temperature swing adsorptive gas separator to desorb a portion of said first component adsorbed on said at least one adsorbent material in said temperature swing adsorptive gas separator and recovering a second product stream from said temperature swing adsorptive gas separator, and
- i. admitting a portion of at least one of said first product stream, said second product stream, a purified second product stream, a compressed second product stream, a third product stream, or a fourth product stream as a second regeneration stream into an auxiliary heater to increase a temperature of said second regeneration stream to a temperature suitable for regeneration of said at least one adsorbent material, recovering said second regeneration stream from said auxiliary heater, and admitting said second regeneration stream into said temperature swing adsorptive gas separator to desorb a portion of at least one of said first component and a third component adsorbed on said at least one adsorbent material in said temperature swing adsorptive gas separator and recovering said third product stream from said temperature swing adsorptive gas separator.
6 more elements
A combustion system comprising:
- an oxidant preheater fluidly connected to a primary oxidant source and to a secondary oxidant source and operable to provide a preheated primary oxidant stream and a preheated secondary oxidant stream;
- a fuel source;
- a combustor, fluidly connected to recover at least one of said preheated primary oxidant stream and said preheated secondary oxidant stream from said oxidant preheater, and a fuel stream from said fuel source for combustion, to produce a combustion gas stream, and fluidly connected to admit said combustion gas stream into said oxidant preheater;
- a particulate collector fluidly connected to recover said combustion gas stream from said oxidant preheater, for forming a first treated combustion gas stream depleted in particulates relative to said combustion gas stream;
- a flue gas desulfurizer fluidly connected to recover said first treated combustion gas stream from said particulate collector for forming a third treated combustion gas stream;
- a direct contact cooler fluidly connected to recover at least a portion of said third treated combustion gas stream from said flue gas desulfurizer;
- a temperature swing adsorptive gas separator having at least one adsorbent material fluidly connected to recover said third treated combustion gas stream from said direct contact cooler as a feed stream comprising at least a first component consisting of at least one of a carbon dioxide, a sulfur oxides, a nitrogen, an oxygen, and/or a heavy metal component, and operable to separate at least a portion of said first component from said feed stream;
- fluidly connected to release a first product stream into an ambient environment;
- fluidly connected to recover a first regeneration stream, and
- an auxiliary heater fluidly connected to recover a portion of at least one of said second product stream, a purified second product stream, a compressed second product stream, a third product stream, or a fourth product stream for producing a second regeneration stream, and said auxiliary heater is fluidly connected to admit said second regeneration stream into said temperature swing adsorptive gas separator.
7 more elements
Dependencies are inferred from the claim text.