CO 2 Membrane Gas Separation Applications for Natural Gas Processing Plant. Atsushi Morisato Cameron, A Schlumberger Company January 23, 2017

Transcription

1 CO 2 Membrane Gas Separation Applications for Natural Gas Processing Plant Atsushi Morisato Cameron, A Schlumberger Company January 23, 2017

2 CYNARA Membranes R&D, Science to Engineering Support Structure Thin Outer Membrane POLYMER SCIENCE: Solution/Diffusion Transport ASYMETRIC HOLLOW FIBER: Development and Manufacture Permeate CO 2 rich Feed Membrane Module: Development and Manufacture Product Hydrocarbon Containing CO 2 CASING DESIGN AND FABRICATION PROCESS DESIGN including PRETREAT: Integration of Membrane Into Overall System and Operations 2

3 CYNARA Membrane Module and Case 3

4 Cynara Hollow Fiber Membrane Module Size Advantage Diameter 5 inch. 12 inch. 16 inch. 30 inch. Relative Gas Capacity ft 2 62 ft 2 44 ft 2 22 ft 2 Skid Weight 31 tons 11 tons 6 tons 3.5 tons 4

5 Offshore CO 2 Removal Technology Options Key Factors for offshore systems Very small size and weight No chemical processes, minimal utility requirements Ease of operation and low maintenance Ability to adapt to changing gas compositions 5

6 Cameron SACROC CO2 EOR Membrane Plant Commissioned in MMSCFD 90% to 10% CO % availability 第６回 革新的CO2膜分離技術シンポジウム 6

7 Historical Scheme for CO 2 Separation Technology in SACROC CO2 EOR Facility, Snyder, TX. 50 MMscfd 1975 Benfield 40% 10% CO to Present 120 MMscfd 1983 Membranes 65% 28% CO Benfield 28% 10% CO2 Amine 750 MMscfd Present Membranes 90% 10% CO Benfield Plant Shut-Down 10% 2% CO2 7

8 Performance Chart for a 30 inch Module Relative CO 2 Flux Years Module Removed From Case For 15 Days Repeated Shut Downs New Module Installed -2.5 Feed Pressure = 530 psig ,000 1,500 2,000 Permeate Pressure = 40 psig Temperature = 70 F Days Feed CO 2 = 60% Relative CO 2 /C1 Selectivity 8

9 Removing the 30 inch Module from Case 9

10 New Challenge to Reduce Total Hydrocarbon Losses l Maintain current production of high purity CO 2 for EOR reinjection while improving the current level of NGL permeate losses Strategy l Target areas of the SACROC facility for process improvements l Capitalize on Cynara membranes resistance to hydrocarbon condensation l Collaborate with customer to address areas of improvement 10

11 SACROC CO 2 EOR Facility Producing Well(s) Compression 25 psig Pre-Treat (Dehydration, Refrigeration, Filtration) 100 psig 500 psig Condensate (NGLs) Re-injection (CO 2 ) Plant 0 Re-injection (CO 2 ) Condensate (NGLs) Hydrocarbon Gas ( 12% CO 2 ) 88-92% CO 2 Pre-Treat (Dehydration, Refrigeration, Filtration) Topping Unit Condensate (NGLs) 200 psig Pre-Treat (Dehydration, Refrigeration, Filtration) Plant 1 (1 st stage) Compression Additional Pre-treatment Plant 1 (2 nd stage) Re-injection (CO 2 ) Re-injection (CO 2 ) 400 psig Pre-Treat (Dehydration, Refrigeration, Filtration) Plant 2 (1 st stage) Additional Pre-treatment Plant 2 (2 nd stage) Condensate (NGLs) 11

12 Hydrocarbon Loss on Overall Natural Gas Liquid (NGL) Recovery Hydrocarbon Loss, % (Perm C2+/Feed C2+) ,000 45,000 40,000 35,000 30,000 30,000 25,000 20,000 15, ,000 5/1/10 5/1/11 5/1/12 5/1/13 5/1/14 5/1/15 5/1/16 Date NGL Output, bbl/day 12

13 Natural Gas CO 2 Membrane Application Market Target 80% Inlet CO2 % 60% 40% 20% 10% Inlet Pressure BARG 13

14 CO 2 Membrane Technology in Natural Gas Applications, Future-Forward l For low CO 2 (3 15%), high feed pressure (750 1,100 psig) applications l For deep (2,000m) and far ( Km) off-shore applications FPSO and FPU l For high H 2 S (1 30%) conctent applications Separation of H 2 S and CO 2 High H 2 S (15 30%) bulk separation l For separation of N 2 and CH 4 l For Helium separation High final concentration (99.99%) requirement 14

15 CYNARA Membrane System on the FPSO SBM Tupi 3 in Off-Shore Brazil Inlet Gas 750 psig, 6% - 60% CO 2 Product Gas 3% CO 2 15

16 Thank you! 16