| abstract |
840,143. Storing liquefied gases. TEXAS GAS TRANSMISSION CORPORATION. June 9, 1958 [July 10, 1957], No. 18343/58. Class 8(2). A liquefied gas e.g. methane storage container 11 is surrounded by a layer 12 of solid insulation e.g. balsa wood spaced therefrom and the intervening chamber 14 is charged through a duct 15 with a fluid e.g. butane having a freezing point not lower than the boiling point of the stored gas, or with an oil having a freezing point below the said boiling point and which is highly viscous at this temperature. The solid or highly viscous layer provides additional heat insulation and also mechanical support for the ribbed container 11 which is of stainless steel and has an inlet and vent ducts 17, 18. The inner face of the balsa wood insulation 12 is lined with a liquid impermeable membrane 13, e.g. wood covered with aluminium foil. |