| 摘要 |
The disclosure relates to a method of adding a malodorant to a consumer gas which is distributed to a consumer point, in order to render the surroundings aware of the existence of a risk of accident if consumer gas were to leak out into the air, employing such a process using a concentrated gas, master gas, that the malodorant does not condense during transport and storage of the master gas at low temperatures. The malodorant, in the form of an organic sulphur or other compound, is dissolved in liquid carbon dioxide or other condensable gas in a pressure vessel, in which there is obtained a solution which essentially comprises a gaseous phase and a liquid phase. The solution, the master gas, is withdrawn from the liquid phase, vaporized and added to the consumer gas which is distributed to the consumer.
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