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- W63655831 abstract "A 0.025 m diameter optical access port system is provided for a high-pressure (20.4 bars) and high-temperature (538{degrees}C) fixed-bed coal gasification process stream. A pair of proximal channels lead into the pipe containing the process stream with the proximal channels disposed on opposite sides of the pipe and coaxial. A pair of ball valves are attached to respective ends of proximal channels for fluidly closing the respective channels in a closed position and for providing a fluid and optical aperture in an open position. A pair of distal channels are connected to respective ball valves. These distal channels are also coaxial with each other and with the proximal channels. Each distal channel includes an optical window disposed therein and associated sealing gaskets. A purge gas is introduced into each distal channel adjacent a respective optical window. The purge gas is heated by a heater before entry into the distal channels. Preferably the optical windows are made of fused silica and the seals are Grafoil gaskets which are pressed against the optical window. 3 figs." @default.
- W63655831 created "2016-06-24" @default.
- W63655831 creator A5045631517 @default.
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- W63655831 date "1988-09-14" @default.
- W63655831 modified "2023-09-27" @default.
- W63655831 title "Optical access port" @default.
- W63655831 hasPublicationYear "1988" @default.
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