CO 2 Separation and Capture Technologies Indonesia-Japan CCS Workshop in Jakarta 22 February, 2011 Koji Tanaka JGC Corporation
CONTENTS Introduction – CCS in Natural Gas Exploration CO 2 Capture Technologies – Combination with CCS Improved Technology - HiPACT Summary 2
CCS in Natural Gas Exploration Raw natural gas usually contains considerable amounts of CO 2 which are captured at the processing plant. CCS in natural gas exploration has gained in importance: CCS commercial operations are implemented in recent years. Compression Injection Capture Transport 3
CCS Potential in Natural Gas Processing Mitigation potential for CCS in natural gas processing in non-Annex I counties in 2020 Stefan Bakker, et.al. “Progress on including CCS projects in the CDM: Insights on increased awareness, market potential and baseline methodologies,” GHGT -9 4
CO 2 Capture Technologies Category Energy Product loss consumption in CO 2 stream Chemical Absorption HIGH LOW -> Deep CO 2 removal Absorption Physical Absorption Membrane LOW HIGH -> Bulk CO 2 removal Membrane Adsorption, Cryogenic -> not suitable for natural gas 5
CO 2 Capture Technologies Selection of technology so far… “Current” Gas Field High energy CO 2 consumption Pipeline Gas (CO 2 =2~8%) Natural Gas Chemical LNG (CO 2 =50ppm) ＋ associated CO 2 Absorption up to ~ 15% CO 2 Capture High energy CO 2 Rich Gas Field to be developed consumption CO 2 High HC losses CO 2 Capture Pipeline Gas Natural Gas Chemical Membrane LNG ＋ associated CO 2 Absorption ~ 15% or more Bulk CO 2 removal Deep CO 2 removal 6
CO 2 Capture Technologies When it comes with CCS… Additional energy COMP “Current” Gas Field High energy CO 2 consumption CCS Pipeline Gas Natural Gas Chemical LNG ＋ associated CO 2 Absorption Additional up to ~ 15% energy CO 2 Capture High energy CO 2 Rich Gas Field to be developed COMP consumption CO 2 High HC CCS losses CO 2 Capture Pipeline Gas Natural Gas Chemical Membrane LNG ＋ associated CO 2 Absorption ~ 15% or more Bulk CO 2 removal Deep CO 2 removal 7
CO 2 Capture Technologies CCS Cost Structure CCS acceleration TOTAL:49 COMP.& CCS Cost Cost Reduction STORAGE (Additional 16.7 cost for COMP.& STORAGE natural gas exploration) Capture technology CAPTURE Improved improvement 32.3 CAPTURE technology UNIT:US$/t-CO 2 A CCS Natural gas 8 plant
Improved Technology - HiPACT - Chemical Absorption CO 2 Capture Pipeline Gas Natural Gas HiPACT LNG ＋ associated CO 2 Joint Development Program CO 2 stripping pressure CO 2 Key features of HiPACT solvent 1.2 3 - 8 Bar(a) Existing technology HiPACT High stability High performance against thermal CO 2 Compressor of CO 2 absorption Compression ratio degradation 200/3 = 66 200/1.2 = 166 200/8 = 25 - High CO 2 - Low solvent rate stripping pressure CO 2 injection pressure 200 Bar(a) - Reduce comp. ratio - Reduce capture energy - Reduce capture size - Reduce comp. energy Aquifer - Reduce comp. size Reduce CAPEX and OPEX for CCS 9
HiPACT Development Program Pilot Test More than 14,000 hours operation with simulated gas METI Program Thermal stability was demonstrated Solvent characteristics data was obtained for process modeling HiPACT pilot plant (JGC’s laboratory in Japan) 10
HiPACT Development Program Demonstration Test Tests were implemented through the commercial operation in INPEX’s Koshijihara natural gas plant in August, 2010, by replacing with HiPACT solvent. Excellent energy saving performance was demonstrated Applicability of actual natural gas service was confirmed Now on marketing stage 11
CCS at CO 2 Rich Gas Return to CO 2 Rich Gas Treatment… Increase suction pressure COMP High pressure High pressure permeate gas stripped gas CCS by HiPACT Pipeline Gas Natural Gas Chemical Membrane LNG ＋ associated CO 2 Absorption ~ 15% or more Bulk CO 2 removal Deep CO 2 removal Setting permeate gas from membrane at high pressure causes … Larger membrane area Therefore more hydrocarbon product losses Long for highly selective membrane 12
Summary CO 2 Capture Technologies Overview Chemical absorption – widely used but energy intensive Membrane – low energy but high product loss CCS implementation requires additional energy New Technologies HiPACT, a new chemical absorption technology, improves natural gas production economics with CCS Breakthrough for CO 2 rich gas development – highly selective membrane 13
Recommend
More recommend
