Claims
- 1. A radiant syngas cooler for treating a stream of hot, particulate-containing synthesis gas effluent, which cooler comprises
- an elongated upright shell (11),
- a water bath (12) at the shell lower end,
- a first dip tube (27) depending from said shell and defining a disengagement zone at the shell lower end above said water bath,
- a water wall (13) extending internally of said shell forming an internal chamber (14) and being spaced from the inner wall of said shell to define an elongated annulus (17) therebetween,
- inlet means in said shell communicated with said internal chamber (14) to conduct said stream of hot particulate-containing syngas thereto,
- a second dip tube (19) depending from said water wall (13), spaced inwardly of said first dip tube (27) to define a constricted annulus (31) therebetween which terminates in said water bath(12),
- flow control means for communicating said annulus (17) with a pressurized source of a purge gas,
- whereby said purge gas and said particulate-carrying synthesis gas will enter said bath concurrently, and
- at least one gas discharge port communicated with said disengagement zone to conduct cooled gas therefrom.
- 2. In a radiant syngas cooler as defined in claim 1 wherein said flow control means comprises at least one flow control valve in response to a pressure differential in said elongated annulus (17).
- 3. In the apparatus as defined in claim 1 including pressure sensing means communicated with said elongated annulus 17 for monitoring the pressure therein.
- 4. In a radiant syngas cooler as defined in claim 2 wherein said flow control means is adjustable to vary the volumetric flow of purged gas from said pressurized source thereof in response to a pressure sensed in said elongated annulus (17).
- 5. In the apparatus as defined in claim 1 wherein the pressurized source of purge gas si a chemically inert gas.
- 6. In the apparatus as defined in claim 1 wherein said pressurized source of purge gas contains primarily nitrogen.
- 7. In the apparatus as defined in claim 1 wherein the pressurized purge gas source is comprised at least in part of produced synthesis gas.
- 8. In the apparatus as defined in claim 3 wherein said pressure sensing means is operable to maintain the pressure within said elongated annulus 17 at a pressure in excess of the pressure in said internal chamber.
- 9. In the apparatus as defined in claim 1 wherein said first and second dip tubes are adjacently positioned in said shell to define a passage communicating said elongated annulus with said water bath.
Parent Case Info
This application is a continuation of application Ser. No. 07/615,552, filed Nov. 19, 1990, abandoned.
US Referenced Citations (3)
Number |
Name |
Date |
Kind |
4707163 |
Gudymov et al. |
Nov 1987 |
|
4768470 |
Ziegler |
Sep 1988 |
|
4936376 |
Martin et al. |
Jun 1990 |
|
Continuations (1)
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Number |
Date |
Country |
Parent |
615552 |
Nov 1990 |
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