| 摘要 |
241,817. Synthetic Ammonia & Nitrates, Ltd., and Bramwell, F. H. May 4, 1925. Catalytic apparatus; ammonia, catalytic production of from nitrogen and hydrogen.-The catalytic chamber A of an ammonia-synthesis apparatus is surrounded by a heatexchanger comprising concentric tubes D, E, the hot gases from the chamber traversing the inner tube E and the cold incoming gases flowing through the annular space between the tubes. Specification 229,354 is referred to. |
