Carbon capture by direct cryogenic distillation in conventional natural gas liquefaction plants
is quite difficult due to the easy sublimation characteristics of CO 2. The freeze–out …

Large amounts of gas mixtures of CO2 and hydrocarbons are generated in the CO2-
enhanced oil recovery (CO2-EOR) process, and their separation is very challenging due to …

CO 2 is a common constituent of natural gas. Standards for its maximum concentration differ
from about 2% for pipeline to 50 ppm for liquefaction. All natural gas constituents absorb CO …

In spite of the fact that using extractive dividing-wall columns (EDWCs) lead to a
considerably reduced reboiler heat duty in comparison with conventional extractive …

Separation of CO 2 from hydrocarbons in the natural gas is complicated due to the existence
of an azeotrope between ethane and CO 2 at the cryogenic temperatures. The key issues to …

Carbon dioxide (CO 2) is an influential greenhouse gas that has a significant impact on
global warming partly. Nowadays, many techniques are available to control and remove CO …

BACKGROUND Carbon dioxide and ethane easily form a binary azeotrope under liquefied
conditions. An extractive distillation process for the separation of carbon dioxide and ethane …

Mixed solutions of ethyl acetate and isopropanol readily form waste solvents. Recovering
and reusing waste solvents can harmonize economic and environmental development …

The global natural gas demand is expected to rise continuously over the next decades,
compelling industries to study and develop new natural gas purification processes, such as …

The separation of azeotropic mixtures is one of the most energy‐intensive separations in
petrochemical processes. In this study the effect of feed‐splitting on one arrangement with …