Condensable vapor capture and recovery in industrial applications
AssigneeCalifornia Energy Commission
InventorClarence W. Janes
Life of this patent
Estimating the term…
Abstract
An apparatus for extracting condensable materials from exhaust gases which are produced by combustion. In a steam injected gas turbine driven powerplant, water is extracted from the exhaust gasses and returned to the cycle for steam raising and injection into the combustor. Exhaust gases pass flow co-currently with a cold water fog, water vapor in the fog condenses on the fog drops, the flow passes through a de-mister coalescing the drops so as to produce a warm rain of condensate, the condensate is cooled with a heat exchanger using a cooling medium such as seawater, and the cooled condensate is returned to the cycle.
Claims23
An apparatus for removing condensable materials contained in exhaust gases produced by combustion, comprising:
- (a) means for receiving gases exhausted from a combustor;
- (b) fogging means for generating a fog comprising water droplets having a condensing surface for recovering condensable materials and injecting said water droplets into said exhaust gases, wherein said water droplets provide substantially all of the primary condensing surface of the apparatus and condensable materials contained in said exhaust gases attach to said water droplets, said fogging means positioned downstream of said means for receiving exhaust gases;
- and
- (c) de-misting means for separating said attached water droplets and materials from said exhaust gases and producing a fluid, said de-misting means positioned downstream of said fogging means.
An apparatus for removing condensable materials contained in exhaust gases produced by combustion, comprising:
- (a) means for receiving gases exhausted from a combustor;
- (b) a heat recovery unit having a fluid carrying coil, said heat recovery unit including means for transferring exhaust heat to a countercurrent flow of fluid through said fluid carrying coil, said heat recovery unit positioned downstream of said means for receiving exhaust gases;
- (c) fogging means for generating a fog comprising water droplets having a condensing surface for recovery of condensable materials and injecting said water droplets into said exhaust gases, wherein said water droplets provide substantially all of the primary condensing surface of the apparatus and condensable materials contained in said exhaust gases attach to said water droplets, said fogging means positioned downstream of said heat recovery unit;
- and
- (d) de-misting means for separating said attached water droplets and condensable materials from said exhaust gases and producing a condensed fluid.
An apparatus for removing condensable materials contained in exhaust gases produced by combustion, comprising:
- (a) means for receiving gases exhausted from a combustor;
- (b) a heat recovery unit having a fluid carrying coil, said heat recovery unit including means for transferring exhaust heat to a countercurrent flow of fluid through said fluid carrying coil, said heat recovery unit positioned downstream of said means for receiving exhaust gases;
- (c) fogging means for generating a fog comprising water droplets having a condensing surface for recovering condensable materials and injecting said water droplets into said exhaust gases, wherein said water droplets provide substantially all of the primary condensing surface of the apparatus and condensable materials contained in said exhaust gases attach to said water droplets, said fogging means positioned downstream of said heat recovery unit;
- (d) de-misting means for separating said attached water droplets and condensable materials from said exhaust gases and producing a condensed fluid;
- and
- (e) means for cooling said condensed fluid.
Dependencies are inferred from the claim text.