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US 5,295,356 AGranted
Process and apparatus for the production of carbon monoxide and hydrogen
AssigneeL'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
InventorJean Billy
Life of this patent
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Abstract
The heating and/or the cooling of the three columns is ensured by a closed nitrogen cycle. Carbon monoxide is withdrawn in liquid form from the third column, then is brought through a pump at the pressure of utilization and is warmed under this pressure.
Claims4
Process for the production of carbon monoxide and hydrogen from a gaseous mixture comprising these two substances and methane comprising the steps of:
- washing an initial gaseous mixture of carbon monoxide and hydrogen with liquid methane in a first column to obtain gaseous hydrogen and a washing liquid;
- separating hydrogen dissolved in the washing liquid in a second column to obtain a remaining liquid comprising carbon monoxide and methane;
- separating the remaining liquid by distillation in a third column to withdraw carbon monoxide in liquid form for production at a top section of said third column;
- pressurizing the liquid carbon monoxide to a predetermined pressure of utilization by pumping means;
- heating the liquid carbon monoxide under said utilization pressure;
- and
- heating and/or cooling each of said columns by means of a closed refrigerating cycle.
4 more elements
Apparatus for the production of carbon monoxide and hydrogen from a gaseous mixture comprising these two substances and methane comprising:
- a first column having at its bottom a first inlet for receiving the gaseous mixture comprising carbon monoxide and hydrogen and at its top a second inlet for receiving liquid methane;
- a second column receiving at its top a liquid comprised of carbon monoxide, methane and hydrogen from said first column and having at its bottom a vaporizer to separate hydrogen from the carbon monoxide and methane;
- a third column having at an intermediate point thereof an inlet for receiving a liquid mixture comprising carbon monoxide and methane from the bottom of said second column and having at its bottom a vaporizer for heating the liquid mixture and at its top means for providing reflux and means for withdrawing liquid carbon monoxide including pumping means for pressurizing the liquid carbon monoxide to a desired pressure of utilization;
- means for heating the liquid carbon monoxide delivered by said pumping means to provide a gaseous product;
- and
- a refrigeration cycle providing for heating and/or cooling of said columns with said refrigeration cycle operating in a closed cycle.
3 more elements
Dependencies are inferred from the claim text.