L'air Liquide, Soci&#xe9;t&#xe9; Anonyme Pour L'etude Et L'exploitation Des Proc&#xe9;d&#xe9;s Georges Claude

Bhadri Prasad

Alain Briglia

Jean-Marc Peyron

Pascal Marty

Marie-Pascal Victor

Angela Fernandez

Aurelie Luong

Emmanuelle Brocheriou

Matthieu Muller

Matilde Aires

Emeline Vandroux

Aurélie Luong

In a method for vaporizing a liquid in a heat exchanger, a liquid vaporizes in the heat exchanger to form a gas which is sent to a user via a first pipe in normal operation, wherein if the rate of change of the rate of flow of liquid sent to the exchanger exceeds a threshold, the first pipe is closed and fluid, which may be gas vaporized in the heat exchanger and/or liquid not vaporized in the exchanger, is discharged into the atmosphere or to a flare stack through a second pipe and a valve, the opening of the valve being regulated by the fluid flow rate measured in the second pipe.

Method and apparatus for vaporizing a liquid

The invention relates to an apparatus for cryogenic separation of a mixture of carbon monoxide, hydrogen and nitrogen, including a stripping column and a denitrogenation column, a pipe for sending the mixture in liquid form to the head of the stripping column, a pipe for removing a liquid depleted of hydrogen connected to the stripping column, a pipe for removing a gas enriched with hydrogen from the stripping column, means for sending the liquid depleted of hydrogen or a fluid derived from said liquid to the denitrogenation column, a pipe for drawing a liquid enriched with carbon monoxide from the denitrogenation column, a pipe for drawing a gas enriched with nitrogen from the head of the denitrogenation column and means for sending at least one portion of the gas enriched with hydrogen to the denitrogenation column.

Method and apparatus for cryogenic separation of a mixture containing at least carbon monoxide, hydrogen and nitrogen

In a process for the cryogenic separation of a feed mixture of at least carbon monoxide, hydrogen and methane, the feed mixture is separated in a methane wash column fed by a liquid methane stream at the top of the methane wash column to produce a gas enriched in hydrogen, a liquid stream from the bottom of the methane wash column is treated to produce a mixture of carbon monoxide and methane, the mixture of carbon monoxide and methane is separated in a separation column to produce a gas enriched in carbon monoxide and a liquid methane flow at least part of which forms a purge stream, the purge stream being varied to take account of load variations.

Process and apparatus for the separation by cryogenic distillation of a mixture of methane, carbon dioxide and hydrogen

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Champigny sur Marne, France

Bhadri Prasad