| 摘要 |
<p>A portion of the space on top of the stored liquid is separated by a flexible surface. This portion is connected to the atmosphere while the remaining space is separated from the atmosphere in a gas-tight way. The distillation of the stored liquid is then directed through the flexible wall towards said portion. The installation for carrying out said process comprises at least one flexible device arranged in the space on top of the liquid and which may be a bag-like device made of synthetic material which is secured to the mouth of access to the container. This device is closed by a flange provided with a ventilation valve. </p> |
