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X-RAY DIFFRACTION CAMERA FOR THE ALIGNMENT OF LARGE SINGLE CRYSTALS

Description: A back-reflection Laue camera with three rotation axes and three orthogonal translation axes is described. This camera allows the alignment of large single crystals with a precision of plus or minus 0.25 deg . The degree of single crystallinity of a specimen may be examined. In addition it is possible to accurately mark a crystal for subsequent utilization. (auth)
Date: June 1, 1961
Creator: Meyerhoff, R.W.; Bailey, D.M. & Smith, J.F.
Partner: UNT Libraries Government Documents Department

Valve applications at the SYNTHANE Plant in mixed phase erosive service

Description: Three different control valves used for depressuring abrasive, high-pressure process streams containing coal fines have been improved by upgrading their trim materials. Original trims were of ceramic or of stainless steel coated with stellite; upgraded trims are tungsten carbide. The new materials have significantly improved valve life. These valves are in operation at the SYNTHANE Pilot Plant, a high BTU coal gasification facility operated for the Department of Energy by the Lummus Company. The Plant has been in operation since July of 1976. To date more than 2000 tons of coal have been gasified and these valves have been subjected to nearly 1000 hours of operation.
Date: November 1, 1977
Creator: Bailey, D.M.; Massa, A.W.; Runnels, O.D.; Strebinger, P.C. & Lummus, C.E.
Partner: UNT Libraries Government Documents Department

Measurement of pressure, fluidized bed level, and density in the Synthane Pilot Plant coal gasifier

Description: Fluid bed densities and levels are usually obtained from measurement of differential pressures between taps with a known vertical separation. Historically, this measurement has been difficult in high pressure coal gasification processes primarily due to plugging of the pressure taps and process instrument tubing. Likewise, the achievement of accurate and reliable pressure and differential pressure recordings is affected by similar circumstances. These typical problems were experienced at the SYNTHANE Pilot Plant at Bruceton which is operated for the U.S. Energy Research and Development Administration by the C.E. Lummus Company. Major changes were required in instrument location and selection, piping configuration, and methods of purging. Consistent and accurate data is now obtained. Recommendations for the installation and operation of such instruments are given.
Date: July 1, 1977
Creator: Bailey, D.M. & Runnels, O.D.
Partner: UNT Libraries Government Documents Department