Apparatus and process for power recovery
First Claim
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1. A system for separating particulate solids from a contaminated gas stream, said system comprising:
- a separator vessel having a main contaminated gas inlet, a solids outlet and a first main clean gas outlet and a second main clean gas outlet; and
a power recovery unit having a unit inlet and a unit outlet, said unit inlet being in downstream communication with said first main clean gas outlet and said unit outlet being in downstream communication with said second main clean gas outlet.
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Abstract
Disclosed is a third stage separator which includes two main clean gas outlets. One main clean gas outlet communicates with a power recovery unit such as an expander turbine while the second main clean gas outlet communicates with a conduit that bypasses the expander turbine. The present invention avoids use of the extra equipment, engineering and installation labor required to prevent the bypass conduit from placing a force load on the line to the power recovery unit.
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Citations
19 Claims
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1. A system for separating particulate solids from a contaminated gas stream, said system comprising:
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a separator vessel having a main contaminated gas inlet, a solids outlet and a first main clean gas outlet and a second main clean gas outlet; and a power recovery unit having a unit inlet and a unit outlet, said unit inlet being in downstream communication with said first main clean gas outlet and said unit outlet being in downstream communication with said second main clean gas outlet. - View Dependent Claims (2, 3, 4, 5)
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6. A system for separating particulate solids from a contaminated gas stream, said system comprising:
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a vessel including; a main contaminated gas inlet to said vessel; a plurality of cyclones, each cyclone including a cyclone contaminated gas inlet in communication with said main contaminated gas inlet, a cyclone clean gas outlet and a cyclone solids outlet; a tube sheet within said vessel surrounding at least some of said plurality of cyclones; a main solids outlet extending from said vessel, said main solids outlet being in communication with said cyclone solids outlet; and a first main clean gas outlet and a second main clean gas outlet defined by said vessel, said first main clean gas outlet being in communication with an inlet to a power recovery device and said second main clean gas outlet being out of communication with said power recovery device. - View Dependent Claims (7, 8, 9, 10, 11, 12)
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13. A system for separating particulate solids from a contaminated gas stream, said system comprising:
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a vessel including a main contaminated gas inlet to said vessel, a plurality of cyclones, each cyclone including a cyclone contaminated gas inlet in communication with said main contaminated gas inlet, a cyclone clean gas outlet and a cyclone solids outlet, a tube sheet within said vessel surrounding at least some of said plurality of cyclones, a main solids outlet from said vessel, said main solids outlet being in communication with said cyclone solids outlet, and a first main clean gas outlet and a second main clean gas outlet from said vessel; a power recovery device in communication with said first main clean gas outlet; and a bypass conduit in communication with said second main clean gas outlet that bypasses said power recovery device. - View Dependent Claims (14, 15, 16, 17)
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18. A process for separating particulate solids from a contaminated gas stream and recovering power from said contaminated gas stream comprising:
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delivering said contaminated gas stream to a separator vessel; separating particulate solids from said contaminated gas stream in said separator vessel; withdrawing particulate solids from said separator vessel; transporting a first clean gas stream from a first main clean gas outlet of said separator vessel to a power recovery unit; recovering mechanical power from said first clean gas stream in said power recovery unit; withdrawing said first clean gas stream from said power recovery unit; and intermittently mixing a second clean gas stream from a second main clean gas outlet of said separator vessel with said first clean gas stream withdrawn from said power recovery unit. - View Dependent Claims (19)
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Specification