New liquid membrane technique for gas separation

Thesis/Dissertation · Thu Jan 01 04:00:00 EST 1987

OSTI ID:5496983

Majumdar, S

A new liquid membrane separation technique has been developed utilizing microporous hydrophobic hollow fibers. It does not have the shortcomings of the traditional immobilized liquid membrane techniques. Such a membrane is identified as the contained liquid membrane (CLM). The novel separation device, the hollow fiber contained liquid membrane (HFCLM) permeator, is applied here to the separation of a gas mixture. Studies are made with carbon dioxide-nitrogen mixtures of different compositions, with special emphasis on the purification of model landfill gas. Experiments are carried out in HFCLM permeators with pure helium gas as sweep stream. Two different liquids e.g., pure water and aqueous solution of potassium carbonate are used as liquid membranes. The results suggest that the landfill gas can be upgraded to pipeline quality by a simple single stage permeation process. A three component permeation model, incorporating axial pressure drop, is developed to describe the separation of a binary mixture in a HFCLM permeator in the presence of a sweep gas stream. The membrane thickness in such a permeator is determined by solving a two-dimensional diffusion equation. The experimental data and the theoretical results are compared. Purification data show good agreement with theory.

• Research Organization: Stevens Inst. of Tech., Hoboken, NJ (USA)
• OSTI ID: 5496983
• Country of Publication: United States
• Language: English

Related Subjects

09 BIOMASS FUELS
090122* -- Hydrocarbon Fuels-- Preparation from Wastes or Biomass-- (1976-1989)
140504 -- Solar Energy Conversion-- Biomass Production & Conversion-- (-1989)
ALKALI METAL COMPOUNDS
ALKANES
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CARBONATES
CHALCOGENIDES
DEGASSING
ELEMENTS
FIBERS
FLOW MODELS
HYDROCARBONS
HYDROGEN COMPOUNDS
MANAGEMENT
MATHEMATICAL MODELS
MEMBRANES
METHANE
NITROGEN
NONMETALS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PERFORMANCE TESTING
POTASSIUM CARBONATES
POTASSIUM COMPOUNDS
PRESSURE DROP
PURIFICATION
SANITARY LANDFILLS
SEPARATION EQUIPMENT
TESTING
TWO-DIMENSIONAL CALCULATIONS
WASTE DISPOSAL
WASTE MANAGEMENT
WATER