BIOGAS ASIA PACIFIC FORUM Review of POME biogas plants operational results: BIOTEC experience in Asia, Africa and South America

Transcription

1 BIOGAS ASIA PACIFIC FORUM Review of POME biogas plants operational results: BIOTEC experience in Asia, Africa and South America

2 Content 1 2 Biotec Introduction Our Technologies 3 Operational Results Presentation 4 Conclusion: Lessons Learnt 2

3 INTRODUCTION: Biotec Vision Our vision is to work for a green Planet fed by organic agriculture and moved by renewable energy while ensuring a sustainable social development for Humanity Founder : Mr. Phillipe Conil Biological Engineer by Profession 3

4 INTRODUCTION: Biotec Milestone Founded in Belgium, 1984 Belgium Honduras 100 Colombia Argentina South America Projects foot print 6 offices worldwide in 3 Continents employees Africa Malaysia Indonesia South East Asia 4

5 Our Technologies Bio-digester Models UASB Upflow Anaerobic Sludge Blanket RAC - Anaerobic Contact Reactor RAFAC - Reactor Upflow Anaerobic Contact BIOSECO - Dry Biodigestion model (biomass solid) Composting Aerobic process onto organic matter Shorter composting time Agriculture Energy Environment Ferti-irrigation FORLIM - Fully-monitored Liquid Organic Fertilization System Fertilizer + irrigation system 5

6 Our Technologies Bio-digester Gas Management Flare Biogas Engine Treated Effluent Ferti-irigation To Grid Green Energy Composting 6

7 Our Expertise Operations & Maintenance Engineering Feasibility study Design Project management CDM Monitoring Construction Procurement Supervision Commissioning 7

8 Content 1 2 Biotec Introduction Our Technologies 3 Operational Results Presentation 4 Conclusion: Lessons Learnt 8

9 Operational Results Presentation Locations Latin America: 8 plants in operation / 1 project in construction Africa: 2 plants in operation / 1 project commissioning Asia: 6 plants in operation / 3 projects in construction Key parameters Mill parameters (POME generation, COD) Biogas plant operational results (COD removal, gas production, gas quality) Biogas usage (electricity generation) Periods of assessment Ranges from 2006 to end 2014 Plants handed over to client: 9 units Plants under Biotec operation in 2014: 7 units 9

10 Operational Results: COD 90 COD concentration kg COD / TFFB kg COD / m Latin America Africa SEA COD in Latin America < COD in SEA mills (dilution effect) Load of COD per TFFB ~ 54 kg/tffb (Relatively stable ratio across the world) 10

11 Operational Results: POME Generation 1.4 m 3 POME / TFFB m3 POME / TFFB Average Mills in SEA use less water 11

12 Operational Results: COD Removal 95% COD Removal Efficiency 90% 85.6% 85.6% 85% 80% 75% 70% 65% COD Removal Efficiency Average 60% Average HRT in BIOTEC digesters: 25 days Average COD removal efficiency: 85% COD removal efficiency is closely linked to sludge management 12

13 Operational Results: CH 4 Content 62% % CH 4 60% 58% 56% 54% 52% 50% 48% 46% 44% 56.9% 56.9% Average CH 4 % in BIOTEC plants: 56.9% Difference between LA > SEA More diluted POME tends to give slightly better CH 4 % 13

14 Operational Results: H 2 S concentration 800 H 2 S concentration prior to biogas engine (ppm) H2S Concentration prior to biogas engine Average BIOTEC plants H 2 S prior to scrubbers: ~1,200 ppm H 2 S average post scrubbers (prior to engines): 275 ppm 14

15 Operational Results: CH 4 Capture Nm 3 CH 4 / TFFB Nm3 CH4 / TFFB Average On average BIOTEC plants: 14 Nm 3 CH4/TFFB or 25 Nm 3 biogas /TFFB This equates to a range of 28 to 35 Nm 3 biogas / m 3 POME SEA biogas plants < LA biogas plant in biogas capture (impact of high COD & dilution?) 15

16 Operational Results: Electricity Generation 55 kwh generated / TFFB kwh generated / TFFB Average 25 On average for domestic and export production: 3.8 kwh/nm3 CH4 Average electrical production: 46.5 kwh / TFFB 16

17 Content 1 2 Biotec Introduction Our Technologies 3 Operational Results Presentation 4 Conclusion: Lessons Learnt 17

18 Lessons learnt On implementation Importance of sound design and feedback from operation Need of robust solutions & materials Efficiency of system VS reliability Importance of sizing and stability of organic matter production in the industry On operation Importance of training of local operators Few companies implement AND operate: continuous improvement Importance of automation and monitoring Mill process variables influence the output of the biogas plant Regional variations impact process results 18

19 In A Nice Kitchen, Have A Good Cook! Biotec Company Introduction _10 19