Liquid-vapor equilibria for the binary systems methaneethane, methane-carbon dioxide, and ethane-carbon dioxide and for the ternary system of methane-ethanecarbon dioxide were measured at 250.00K and at pressures of 13-80 atm. Additional liquid-vapor measurements are reported for methane-carbon dioxide at 230.00 and 270.00K.The increased emphasis of recent years in the low-temper-, ature processing of natural gas has resulted in the need for the phase equilibrium properties of light hydrocarbon-carbon dioxide systems. Some experimental data are available for the binary systems composed of methane, ethane, and carbon dioxide, but no measurements have been made on the ternary system. Thus, the work reported here will be of considerable value to both the thermodynamicist and the process design engineer. Previous Experimental WorkExperimental phase equilibrium measurements for the binary systems methane-ethane, methane-carbon dioxide, and ethane-carbon dioxide prior to 1973 have been listed in a recent review paper (S). Table I summarizes all the recent work not reported in ref. 9. There are no experimental data available for the ternary system.

No abstract

No abstract

Oxygen is the most vital drug administered during anesthesia. The delivery of hypoxic or even anoxic gas mixtures during anesthesia has been reported. Because such occurrences often meet with disaster, modern anesthesia machines have a system of alarms to warn against the delivery of hypoxic or anoxic gas mixtures and also to warn of the failure of the oxygen pipeline supply. We describe the occurrence of a sudden failure of the oxygen pipeline supply, and discuss a strategy for coping with this emergency.

No abstract