Exxonmobil Upstream Research Company

Scott D Kelman

Jaime A Valencia

E Lawrence Kimble

Ransdall K Smith

A method and a system for feeding a feed gas including methane (CH) and carbon dioxide (CO) to a cryogenic distillation column are provided herein. The method includes flowing a freeze zone COvapor stream into a freezing section of the column to produce an overhead stream that exits the column. The method includes heating the overhead stream via a heating component to reduce or prevent solidification of the COin the overhead stream.

Heating component to reduce solidification in a cryogenic distillation system

A system and method for an intermediate pressure vessel to receive a purge in a cryogenic distillation column system. The vessel operates at an intermediate pressure to reduce solidification of the purge. The cryogenic distillation column receives a natural gas having methane and acid gas. The column discharges an overhead stream rich in the methane, and a bottoms stream rich in the acid gas. An overhead system receives the overhead stream, and discharges a vapor methane product, and a cooled liquid for reflux to the cryogenic distillation column.

Growing community of inventors

Houston, TX, United States of America

Scott D Kelman