The Online Books Page

Books by W. H. Oppelt:

Books in the extended shelves:

• Oppelt, W. H. (Walter H.): Combustion of North Dakota lignite in domestic heaters (U.S. Dept. of the Interior, Bureau of Mines, 1960), also by E. F. Golob, O. C. Ongstad, T. W. Kamps, R. B. Porter, and W. R. Kube (page images at HathiTrust)
• Oppelt, W. H. (Walter H.): Drying North Dakota lignite to 1,500 pounds pressure by the Fleissner process (U.S. Dept. of the Interior, Bureau of Mines, 1959), also by T. W. Kamps and Wayne R. Kube (page images at HathiTrust)
• Oppelt, W. H. (Walter H.): Experiments in Fleissner drying of North Dakota lignite (U.S. Dept. of the Interior, Bureau of Mines, 1955), also by Wayne R. Kube, O. C. Ongstad, and R. C. Ellman (page images at HathiTrust)
• Oppelt, W. H. (Walter H.): Gasification of lignite in a commercial-scale pilot plant : progress report from July 1, 1950 to December 31, 1951, : and summary of work previous to July 1, 1950 (U.S. Dept. of the Interior, Bureau of Mines, 1955), also by E. F. Golob, T. W. Kamps, M. H. Chetrick, W. R. Kube, and United States Bureau of Mines (page images at HathiTrust)
• Oppelt, W. H. (Walter H.): Low-temperature carbonization of lignite and subbituminous coal : effect of hydrogen atmosphere to 1,000 pounds pressure (U.S. Dept. of the Interior, Bureau of Mines, 1961), also by R. B. Porter and Wayne R. Kube (page images at HathiTrust)
• Oppelt, W. H. (Walter H.): Lurgi-gasifier tests of Pittsburgh-bed coal (U.S. Dept. of the Interior, Bureau of Mines, 1966), also by E. J. Vitt, J. L. MacPherson, H. Perry, Blaw-Knox Co, and United States Bureau of Mines (page images at HathiTrust)
• Oppelt, W. H. (Walter H.): Oxidizing Pittsburgh-bed coal : effect of processing temperature and time (U.S. Dept. of the Interior, Bureau of Mines, 1963), also by Milan J. Kovalik and United States Bureau of Mines (page images at HathiTrust)

Find more by W. H. Oppelt at your library, or elsewhere.