1829.  ------. [KELLOGG, M. W., CO.] Hydrogenation of Carbon Monoxide. British Patent 647,489, Dec. 13, 1950. Chem. Abs., vol. 45, 1951, p. 10,546.

Reactor for the hydrogenation of CO consists of a jacketed 2-in. steel pipe 153 in. long with a 0.55-in. inlet pipe at the bottom and a 6-in. pipe conduit at the top, the latter connected to a manifold, which leads to 2 other 6-in. pipe conduits each containing a gas (but not catalyst) permeable filter. Preferably CO and H₂ in a molecular ratio of 1:5 to 1:10 are passed upward through finely divided Fe at 350º-750º and at a rate greater that 2.2 ft³ CO per hr. per lb. Fe to maintain the Fe in a pseudo-liquid state. Unconverted gases are partly recycled to the reaction zone together with fresh feed. The 2 filters are used alternately every 15 min. for product withdrawal, the off-stream filter being blown back with feed gas to free it of catalyst. Tables showing results obtained with varying conditions in trial runs and on apparatus diagram are included.