Innovations in membranes for natural gas processing frequently consider ideal separation performance as the defining success metric for removing carbon dioxide (CO2) from methane (CH4). However, realistic natural gas feeds are complex mixtures…
Natural gas is a kind of clean energy with high calorific value, but raw natural gas contains a certain amount of acid gas CO2, which will cause problems like heating value reduction and pipeline corrosion. Therefore, it is necessary to remove CO2…
Natural gas, having a significantly lower CO2emission factor than oil and coal when combusted, is accepted as an important transition fuel towards carbon net-zero society. To meet the calorific value requirements (34.0 MJ m3) and reduce possible…
Natural gas, as a very important source of energy and chemical feedstock, can be used in place of coal to lower net carbon dioxide emissions. Membrane separation technology is an attractive alternative for natural gas purification where the…
The use of foams is a promising technique to overcome gas mobility challenges in petroleum reservoirs. Foam reduces the gas mobility by increasing the gas apparent viscosity and reducing its relative permeability. A major challenge facing foam…
Polymers of intrinsic microporosity have attracted comprehensive attention in membrane-mediated gas separation because of their rigid and contorted structure that facilitates well-defined microporosity for fast and selective gas transport. We report…
A new homopolymer, 6FDA-CARDO(t-Bu), was prepared from 6FDA-CARDO through one-step chemical modification by adding bulky tert-butyl groups, using Friedel-Crafts alkylation. The incorporation of the bulky groups led to a significant increase in the…
CO2 removal is imperative in the sweetening of natural gas. In this work, a hybrid method combining membrane separation and chemical absorption is proposed and applied to test its performances in CH4 refinement and CO2 separation from natural gas.…
The petroleum industry is receiving increased interest in subsea oil and gas processing as it is running out of easily accessible oil and gas reservoirs. Membrane processes fulfill subsea design requirements with a simple and compact design. However,…
Mixed matrix membranes (MMMs) have received worldwide attention for natural gas purification due to their superior performance in terms of permeability and selectivity. The zeolitic imidazole framework-8 (ZIF-8) blended polysulfone (PSf) membranes…
Rubbery siloxane membranes are utilized in industry for the rejection of nitrogen and for the concentration of heavy hydrocarbons in the membrane permeate stream. In this work, modified crosslinked siloxane terpolymer…
Development of the East Natuna gas field, the largest natural gas resources in Southeast Asia, is still highly challenging because of the presence of CO2, up to 72%. Reliable CO2 separation technology implementation with suitable CO2 handling methods…
Many membranes for gas separation and purification reportedly exhibit carbon dioxide/methane selectivity of 2.6–37 for polymer membranes and as high as 42.65 for inorganic membranes. Researches on improving membrane selectivity appear to be on the…
The study compared the techno-economic performance of two CO2 separation technologies from high CO2-content natural gas, membrane and controlled freeze zone (CFZ) separation, for liquefied natural gas (LNG) production integrated CO2 sequestration.…
Supersonic separators offer a cleaner offshore processing of natural gas with carbon dioxide content from deep-water oil-gas fields. Conventional offshore gas processing comprises water dew-point adjustment via glycol-absorption, hydrocarbon…
Libra Field is a giant oil and gas offshore field situated in Santos Basin, at 200 km from southeastern Brazil coast, 2200 m water depth and 5 km crust depth. The product of Libra is a 27API oil with a remarkable characteristic: an impressive gas/oil…
Approximately 40% of current global natural gas resources have high H2S and CO2 concentrations. The H2S concentration in Middle East gas reservoirs can potentially reach up to 30 mol%. H2S is toxic
Many membranes for gas separation and purification reportedly exhibit carbon dioxide/methane selectivity of 2.6–37 for polymer membranes and as high as 42.65 for inorganic membranes. Researches on improving membrane selectivity appear to be on the…
The study compared the techno-economic performance of two CO2 separation technologies from high CO2-content natural gas, membrane and controlled freeze zone (CFZ) separation, for liquefied natural gas (LNG) production integrated CO2 sequestration.…