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AssigneeExxon Research & Engineering Co.
InventorsJames M. Eakman, Harry A. Marshall
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A process for the separation of carbon dioxide and other acid gas components, in a compound distillation column, from a gaseous mixture comprised of one or more hydrocarbons, inclusive of methane, and hydrogen. The compound distillation column is sectioned (or zoned), one section of which is operated at higher pressure than another, and hence in a relative sense is referred to as a high pressure section while the other is referred to as a low pressure section. A product, principally methane, is removed from the high pressure section while a product of principally acid gases is removed from the low pressure section. By maintaining the sections at different pressure, the separations are more efficiently made and phase separation of products in the low pressure section is easily maintained.
In a process for the separation of carbon dioxide from a gaseous mixture comprising carbon dioxide and methane, the improvement comprising:
Dependencies are inferred from the claim text.