skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Process for separating nitrogen from methane using microchannel process technology

Patent ·
OSTI ID:913094
 [1];  [2];  [3];  [4];  [4];  [2];  [5];  [6]
  1. Marysville, OH
  2. Dublin, OH
  3. Worthington, OH
  4. Westerville, OH
  5. Hilliard, OH
  6. Cincinnati, OH
+ Show Author Affiliations

The disclosed invention relates to a process for separating methane or nitrogen from a fluid mixture comprising methane and nitrogen, the process comprising: (A) flowing the fluid mixture into a microchannel separator, the microchannel separator comprising a plurality of process microchannels containing a sorption medium, the fluid mixture being maintained in the microchannel separator until at least part of the methane or nitrogen is sorbed by the sorption medium, and removing non-sorbed parts of the fluid mixture from the microchannel separator; and (B) desorbing the methane or nitrogen from the sorption medium and removing the desorbed methane or nitrogen from the microchannel separator. The process is suitable for upgrading methane from coal mines, landfills, and other sub-quality sources.

Research Organization:
National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FC26-03NT41905
Assignee:
Velocys, Inc. (Plain City, OH)
Patent Number(s):
7,250,074
Application Number:
10/927,370
OSTI ID:
913094
Country of Publication:
United States
Language:
English

References (50)

Adsorption of nitrogen, methane, carbon monoxide, and their binary mixtures on aluminophosphate molecular sieves journal March 1997
Control of Adsorption Rate on Zeolite by Chemical Vapor Deposition book January 1996
Gas diffusion and sorption properties of polysiloxane membranes prepared by PECVD journal April 2002
Dissociative adsorption and subsequent reactions of methane on Ar-ion sputtered single crystal of LiNbO3 journal March 1998
Zeolite micromembranes journal January 2003
Separation of methane—nitrogen mixtures by pressure swing adsorption using a carbon molecular sieve journal September 1995
Tailored Porous Materials journal October 1999
Gas Compression Using Temperature Swing Adsorption journal January 2002
Adsorption of carbon dioxide, methane, and nitrogen: pure and binary mixture adsorption by ZSM-5 with SiO 2 /Al 2 O 3 ratio of 30 journal January 2002
Gas sorption and transport in side-chain crystalline and molten poly(octadecyl acrylate) journal March 2001
Adsorption of Methane, Ethane, and Their Binary Mixtures on MCM-41:  Experimental Evaluation of Methods for the Prediction of Adsorption Equilibrium journal April 2002
Adsorption of methane, ethane and ethylene on molecular sieve zeolites journal January 1996
Supercritical adsorption of ‘permanent’ gases under corresponding states on various carbons journal January 2002
The design of microporous graphitic adsorbents for selective separation of gases journal August 2000
Preparation and Characterization of Adsorption-Selective Carbon Membranes for Gas Separation journal September 2001
Heterogeneity of synthetic carbons obtained from polyimides journal August 2002
Development and Validation of Pore Structure Models for Adsorption in Activated Carbons journal September 1999
Thermodynamics of High-Pressure Adsorption of Argon, Nitrogen, and Methane on Microporous Adsorbents journal June 1998
High-Pressure Methane Adsorption on NaX and NaY Zeolites with Different Si/Al Ratios journal December 1994
Pure- and Mixed-Gas Sorption Measurements on Zeolitic Adsorbents via Gas-Phase Nuclear Magnetic Resonance journal August 2002
Binary and Ternary Adsorption Kinetics of Gases in Carbon Molecular Sieves journal July 2003
Effect of adsorption pressure on methane purity during PSA separations of CH4/N2 mixtures journal January 1999
Pore Structure Alteration of a Carbon Molecular Sieve for the Separation of Hydrogen Sulfide from Methane by Adsorption journal March 1993
Gas transport and sorption in polyaniline thin film journal June 1999
Enrichment of Methane Concentration via Separation of Gases using Vortex Tubes journal April 2002
The effect of pore structure and gas pressure upon the transport properties of coal: a laboratory and modeling study. 1. Isotherms and pore volume distributions journal September 1999
Adsorption and selectivity of carbon dioxide with methane and nitrogen in slit-shaped carbonaceous micropores: Simulation and experiment journal January 1996
Calculation of single adsorption isotherms from gravimetrically measured binary gas mixture adsorption isotherms on activated carbon at high pressures journal December 1997
Numerical Analysis on the Power Consumption of the PSA Process for Recovering CO2 from Flue Gas journal August 2002
Studies on the Physical Adsorption Equilibria of Gases on Porous Solids over a Wide Temperature Range Spanning the Critical Region-Adsorption on Microporous Activated Carbon journal October 2001
Selective gas adsorption by metal exchanged amorphous kaolinite derivatives journal July 2000
Modeling of High-Pressure Adsorption Using the Bender Equation of State journal January 2003
Determination of methane and other small hydrocarbons with a platinum–Nafion electrode by stripping voltammetry journal March 2001
Coalseam methane recovery by vacuum swing adsorption journal June 2001
Correlating N 2 and CH 4 Adsorption on Microporous Carbon Using a New Analytical Model journal November 1998
Methane Separation from Coal Mine Methane Gas by Vacuum Pressure Swing Adsorption journal April 2003
Phosphoric acid activated carbon discs for methane adsorption journal January 2003
A New Concept in the Design of Pressure-Swing Adsorption Processes for Multicomponent Gas Mixtures journal January 1999
Adsorption of Carbon Dioxide and Methane and Their Mixtures on an Activated Carbon:  Simulation and Experiment journal December 1999
Ethylene recovery from the gas product of methane oxidative coupling by temperature swing adsorption journal January 1996
Adsorption of Methane onto Activated Carbon by a Graphite Crystal Aggregate Model book January 1996
Characterization of Porous Materials by Gas Adsorption at Ambient Temperatures and High Pressure journal February 2001
Adsorption Equilibria of Methane, Ethane, Ethylene, Nitrogen, and Hydrogen onto Activated Carbon journal May 2003
Modeling of Gas Adsorption Equilibrium over a Wide Range of Pressure: A Thermodynamic Approach Based on Equation of State journal June 2002
Textural and Surface Chemistry Characterization of Zeolites via Adsorption Phenomena book January 2001
Adsorber dynamics and optimal design of layered beds for multicomponent gas adsorption journal December 1998
Adsorption of Methane, Nitrogen, Carbon Dioxide, and Their Binary Mixtures on Dry Activated Carbon at 318.2 K and Pressures up to 13.6 MPa journal June 2003
Kinetic separation of methane/carbon dioxide by molecular sieve carbons journal July 2002
Revisiting Transport of Gases in the Micropores of Carbon Molecular Sieves journal December 2002
Activated carbon sheet prepared from softwood acetic acid lignin journal February 2000

Similar Records

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY