The liquefaction of hydrogen

• Publisher: Elsevier Science
• Year: 1902
• Tongue: English
• Weight: 54 KB
• Volume: 153
• Category: Article
• ISSN: 0016-0032
• DOI: 10.1016/s0016-0032(02)90206-1

✦ Synopsis

Book Notices. 75

THE LIQUEFACTION OF HYDROGEN.

A note by Mr. M. W. Travers, as abstracted in the Transactions of the British Institution of Civil Engineers, gives an account of the method whereby the author has succeeded in obtaining liquid hydrogen in quantity. The apparatus consists essentially of a modified Hampson air-liquefier. The hydrogen, at a pressure of 2oo atmospheres, undergoes a preliminary cooling ---80 °. C. in solid carbonic acid and alcohol. It is then successively cooled by liquid air boiling under atmospheric pressurel and under a pressure of ioo millimeters, after which it escapes from the Hampson valve, and being sufficiently imperfect gas at the low temperature (--20o ° C. ) obtained by the liquid air boiling under low pressure, regenerative cooling is produced, as in the liquefaction of air by the Hampson machine, and liquid hydrogen is obtained. It is collected in a vacuum vessel which is sepecially insulated from external heat.