CO 2 -plant Schwarze Pumpe. B. Holling, R. Ritter, (Linde-KCA-Dresden GmbH),

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Martin Casey
6 years ago
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1 First experience in the commissioning i i of the CO 2 -plant Schwarze Pumpe B. Holling, R. Ritter, (Linde-KCA-Dresden GmbH), T. Porsche, M. Biele (Vattenfall Europe Generation AG & Co. KG) 1 st Oxyfuel conference, Cottbus, Sept. 7 th -10 th 2009

2 1. Linde s scope in CCS Three possible solutions: Post-combustion capture PCC F uel Air Flue gas Power & Heat N 2, O 2, H 2 O CO 2 separation Amine wash Linde scope Pre-combustion capture IGCC Fuel Air Gasification or partial oxidation shift + CO 2 separation H 2 Air O 2 Air separation N 2 Linde scope N 2, O 2, H 2 O Power & Heat Linde scope CO 2 CO 2 CO 2 dehydration, h d compression, transport and storage CO 2 (H 2 O) O 2 /CO 2 recycle combustion capture Oxyfuel Fuel Power & Heat O 2 Recycle (CO 2 2, H 2 O) N 2 Air Air separation Linde scope Linde-KCA-Dresden GmbH 2 Filename

3 2. Oxyfuel pilot plant Vattenfall at Schwarze Pumpe successful inauguration in September 2008 Air Separation Unit Oxyfuel boiler system Flue gas purification with dust removal, desulphurization and flue gas condensation CO 2 compression with purification and liquefaction CO 2 storage Truck-loading Linde-KCA-Dresden GmbH 3 Filename

4 3.The CO2 plant 30 MW th max. 10 t/h CO 2 CO 2 -liquefaction road transport (truck, 15 bar) CO 2 -product: >99.7 % CO 2 Commissioning start: 09/ 2008 Linde-KCA-Dresden GmbH 4 Filename

5 4. Specification of the CO 2 -plant Schwarze Pumpe Raw CO 2 -Gas: 6950 Nm³/h (12,5 t/h) bei 1,01 bar und 29 C CO 2 77,1 % Vol range: 50 85% Ar 30%Vol 3,0 impurities: N 2 10,8 % Vol CO < 750 mg/nm³ O 2 5,1 % Vol NO < 630 mg/nm³ H 2 O 3,9 % Vol NO 2 <10mg/Nm³ SO 2 < 20 mg/nm³ SO 3 < 5 mg/nm³ HCl < 1 mg/nm³ HF <050 0,50 mg/nm³ heavy metals, dust CO 2 - Product: 4500 Nm³/h (8,84 t/h; max. 10t/h) liquid CO 2 (pressure 15 bar) purity: >99,7 % Vol CO 2 load range: % recovery rate: 84 % range: up to 94% power consumption (total): 23MW 2,3 Linde-KCA-Dresden GmbH 5 Filename

6 5. Process Flow Diagram CO 2 - plant Schwarze Pumpe Atm. Linde-KCA-Dresden GmbH 6 Filename

7 6. Performance parameter -Product quality the required purity of the CO 2 -product archieved limits for impurities lower as required (several analysies) product analysis from 26./ 27. August 2009: CO % O 2, N 2, Ar <0.012 % CO <2 ppmv NO 0,72 ppmv NO 2 11,1 ppmv SO 2 <0.02 ppmv HCL <0.12 ppmv HF <0.28 ppmv heavy metall (total) <0.01 mg/ Nm³ -recovery rate of CO 2 : >90 % The recovery rate is depedened on CO 2 -content in the flue gas. It could be demonstrated that the recovery rate is > 90% (according to the process design). -content of CO 2 in the raw gas: up to 85 vol% -flow rate: approx Nm³/h Linde-KCA-Dresden GmbH 7 Filename

8 6. Performance parameter -liquefaction capacity: The liquefaction capacity is in the expected field. It could be archieved continuous 8 t/h CO 2 -liquifaction with approx. 80 % load of the CO 2 -plant. The capacity of the refrigeration unit (especial refrigerant compressors) was also approx. 80 % load. -load change velocity In the start-up phase the load change velocity was checked without negativ impact of the CO 2 -product quality. First result was 1.8%/ min. Next target will be to achieve : 2.5%/ min. -lowest temperature close to triple point temperature (-56 C) The operation was sucessfull close to the triple point temperature (possible by automatic process controll). -operation with the multi stream heat exchanger (4 streams with condensation, evaporation, heat transfer) The operation with the multi stream heat exchanger ( BAHX) was sucessfull. -using internal CO 2 -recycle for increasing of the recovery rate The internal CO 2 -reclycle was tested sucessfull. Linde-KCA-Dresden GmbH 8 Filename

9 7. Operation experience during restart-up pressurisation finish flow gas flow rate The required CO 2 -product quality is achieved very quickly (approx. 45 min) after restart from cold stand by status. CO2 product flow rate Start compressor ventgas flowrate NO2 appr. 18 ppm CO2 >99,8 Vol% O2 aoppr. 250 ppm N2 appr. 150 ppm CO appr. 0,7 ppm lowest temperature archieved Linde-KCA-Dresden GmbH 9 Filename

10 8. Planned demo plant Vattenfall at Jänschwalde demo unit 1 New Oxyfuel Boiler 250 MW el with ASU and CO 2 -compression demo unit 2 CO 2 -Post Combustion for 3000 t CO 2 /day with scrubbing and CO 2 compression. Linde-KCA-Dresden GmbH 10 Filename

9. Linde develops commercial solutions for CCS Challenges:

efficiency Commercial Plant CO2-Pilot Plant Demonstration

th 800 t CO 2 /h 1000 MWel Key Dates: Project Start Plant

2015 2016 2017 Pilot Plant Demonstration Plant Commercial

11 9. Linde develops commercial solutions for CCS Challenges: Upscaling from pilot to commercial plants Optimized efficiency Commercial Plant CO2-Pilot Plant Demonstration Plant 10 t CO 2 /h 30 MW th t CO 2 /h 300 MW 600 MW th 800 t CO 2 /h 1000 MWel Key Dates: Project Start Plant Start Validation Complete Pilot Plant Demonstration Plant Commercial Plant Linde-KCA-Dresden GmbH 11 Filename

12 10. Adapting of technologies for demo plants Component Pilot plant Demo plant Purification Fixed bed adsorption and partial condensation, rectification Scrubbing,partial condensation (rectification),denoxunit Machinery Screw compressors Turbo compressors Refrigerant Ammonia Carbondioxide, ide (Propene) CO2 export Liquefaction Pipeline transport or Liquefaction Linde-KCA-Dresden GmbH 12 Filename

13 Thanks for your attention. phone:

NOx processing experiences for removal in the CO 2 plant for the Oxyfuel combustion process

NOx processing experiences for removal in the CO 2 plant for the Oxyfuel combustion process Roland Ritter, Torsten Stoffregen, Linde Engineering Dresden GmbH Nicole Schödel, Florian Winkler, Linde Engineering