Separation and Capture of CO 2 using membrane

Separation and Capture of CO 2 using membrane technology University of Zaragoza Background Problem • Atmospheric CO 2 concentration has increased from 280 to 370 ppm over the last 200 years, this is due to use of fossil fuels (petrol, coal, natural gas). • This increase of atmospheric CO 2 concentrations is the main cause of greenhouse effect. Ø CO 2 reduction would be necessary Ø CO 2 capture technologies must be developed • By 2100 carbon cycle models predict concentration of 540 to 970 ppm. Ø Kyoto Protocol OLD WAY NEW WAY WITH MEMBRANES Post-combustion separation The Greenhouse Effect N 2+CO 2 Increasing greenhouse gases CO 2 H 2 flux enrichment H 2+CO 2 Synthesis Gas 2 Pre-separation absorb & re-radiate heat H 2 Membrane Reforming CH 4 + CO 2 CH 4+H 2 O H 2+CO 2 Coal Petrol CO 2 geologic storage Petrol + Coal CO 2 N 2 H O 2 N 2 CO 2 N 2 H 2 OCO 2 Natural Gas CH 4 + CO 2 H 2 O N 2 H 2 Green Power CO 2 geologic storage CO 2 CO Combustion NO CO 2 EMISSIONS Natural Gas Power Geologic Storage Facts Ø Satisfactory test with different types of zeolitic membranes Ø Membrane reactors tested in fuel reforming Ø Need to improve membranes (further research) in order to future industrial introduction Ø Membrane separation and geologic storage reduction emissions of greenhouse gases By I. Pellejero; M. Menendez