Biogas potentials in Brazil

Transcription

1 Biogas potentials in Brazil Dr. Walter Stinner, Leandro Janke DBFZ Deutsches Biomasseforschungszentrum gemeinnützige GmbH München, Durchführer

2 Content Brief introduction DBFZ Mass flows for biogas production in Brazil Energy potentials of sugar cane industry in Brazil Questions for further R&D activities 2

3 DBFZ Development, Mission, Structure Development: Founded on 28 th February 2008 in Berlin as gemeinnützige GmbH Sole shareholder: Federal Republic of Germany, represented by the Federal Ministry of Food and Agriculture (BMEL) By the end of 2013: constant expansion of headcount and infrastructure Mission: The key scientific mission of the DBFZ is to provide wide-ranging support for the efficient integration of biomass as a valuable resource for sustainable energy supply based on applied scientific research. Structure: About 200 employees until 12/2014 in the administration and the four research departments. General Management: Prof. Dr. mont. Michael Nelles (scientific) Daniel Mayer (administrative) Fig.: DBFZ 3

4 Research focus areas and structure The four research focus areas Sustainability / Sustainability assessment Innovative energy sources Demand driven technologies and master concepts for the supply of energy Monitoring Organizational structure: the four research departments Applied class research along the entire supply chain 4

5 Biomass potentials for biogas generation in Brazil Manure (high density of svine and poultry in south Brazil, Santa Katarina, Mato Grosso do Sul, Rio Grande do Sul) Ruminants mostly grazing or in feedlots (high sediment content) Slaughterhouse wastes Vegetable, fruit and juice industry wastes Wastes from Cereal, soybean and further threshed crops (grain impurities, straw) Wastes and waste waters from breweries, wine and soft drink industry Municipal organic wastes and waste waters Wastes from sugar cane industry 5

6 Brazilian Sugarcane Industry Sugarcane in Brazil ca. 400 plants Center-South: April to November Northeast: November to April 3. Doktorandenseminar Promotionsprogramm des DBFZ

7 Sugarcane industrial process 3. Doktorandenseminar Promotionsprogramm des DBFZ

8 Brazilian Sugarcane Industry Sugarcane production season 2013/2014 Places Sugarcane [ton x 10 3 ] Sugar [ton x 10 3 ] Ethanol [m 3 x 10 3 ] Goiás 62,018 (9%) 1,891 3,879 São Paulo 367,450 (56%) 23,963 13,944 Other 224,051 (35%) 11,859 9,720 Brazil (total) 653,519 (100%) 37,713 27,543 Source: UNICADATA (2015) 8

9 Brazilian Sugarcane Industry Materials Generation [L or kg/tc] Ethanol 1 São Paulo 38 Goiás 62 Straw 2 Bagasse 3 Filter cake 3 Brazil (dry basis) 260 (wet basis) 35 (wet basis) Vinasse 4 São Paulo 551 Goiás 899 Brazil 609 Source: 1 calculated based on UNICADATA (2015) 2 CTC - Centro de Tecnologia Canavieira (2005) 3 average values obtained from industrial plants (13/14 season) 4 calculated based on UNICADATA (2015) and average values (14.5 L/L) obtained from industrial plants (13/14 season) 9

10 Brazilian Sugarcane Industry Substrates Total solids [% FM] Volatile solids [% of TS] Straw COD [g/l] Bagasse Filter cake Vinasse

11 Methodology Main parameters used for CHP production Parameters Value Unit Energy efficiency 1 Thermal 41.4 % Electrical 42 % Overall 83.4 % Energy consumption 2 Electrical 7.5 % Thermal 20 % CH 4 energy content kwh/m 3 Source: 1 Haase Energie Technik GmbH 2 Pölschl et at. Evaluation of energy efficiency of various biogas productions pathways (2010) 3 FNR Fachagentur Nachwasende Rochstoffe - Biogas an introduction (2009) 11

12 Methodology Main parameters used for biomethane production Parameters Value Unit CH 4 content in biomethane 1 95 % (v/v) Electricity consumption kwh/m 3 CH 4 losses % (v/v) Source: 1 Assumption 2 FNR Fachagentur Nachwasende Rochstoffe - Biomethane (2013) 12

13 Batch test straw 13

14 Batch test bagasse 14

15 Batch test filter cake 15

16 Batch test - vinasse 16

17 Summary of batch tests Substrates Biogas yield [NmL/gVS or gcod] Biogas yield [Nm 3 /ton FM ] Methane [% v/v] Straw ± ± ± 3.5 Bagasse 479 ± ± ± 4.9 Filter cake 449 ± ± ± 1.8 Vinasse 436 ± ± ± 1.3 Note: 1 without grinding 17

18 Energy potential Goiás 18

19 Cane-Wastes to biogas - Goiás Substrates Quantity [10 3 ton or m 3 /year] Biogas [10 6 m 3 /year] Straw (50%) 1 6,069 1,513 Bagasse (25%) 2 4, Filter cake 3 2, Vinasse 56, Note: 1 TS of 71,53% 2 TS of 55.40% 3 TS of 27.00% 19

20 Cane- Wastes to CHP - Goiás Substrates Thermal energy [GWh/year] Electricity [GWh/year] Potential capacity [MW EL ] Straw (50%) 2,748 3, Bagasse (25%) 1,919 2, Filter cake Vinasse 957 1, Total 6,054 7,104 1,408 Note: capacity factor of 57% (210/365) 20

21 Wastes to electricity - Goiás Source of electricity consumption: BEGO (2011) State Energy Balance 21

22 Wastes to biomethane - Goiás Substrates Biomethane 1 [10 3 Nm 3 /year] Straw (50%) 818,077 Bagasse (25%) 571,227 Filter cake 128,144 Vinasse 285,123 Total 1,802,571 Note: 1 CH4-95% (v/v) 22

23 Wastes to biomethane - Goiás Source of diesel fuel consumption: BEGO (2011) State Energy Balance 23

24 Energy potential São Paulo 24

25 Cane- Wastes to biogas São Paulo Substrates Quantity [10 3 ton or m 3 /year] Biogas [10 6 Nm 3 /year] Straw (50%) 1 35,959 8,967 Bagasse (25%) 2 23,884 5,886 Filter cake 3 12,860 1,302 Vinasse 202,913 1,632 Note: 1 TS of 71,53% 2 TS of 55.40% 3 TS of 27.00% 25

26 Cane- Wastes to CHP São Paulo Substrates Thermal energy [GWh/year] Electricity [GWh/year] Potential capacity [MW EL ] Straw (50%) 16,282 19,103 3,790 Bagasse (25%) 11,371 13,339 2,646 Filter cake 2,551 2, Vinasse 3,456 4, Total 33,660 39,448 7,833 Note: capacity factor of 57% (210/365) 26

27 Wastes to electricity São Paulo Source of residential electricity consumption: BEN (2014) Brazilian Energy Balance 27

28 Wastes to biomethane São Paulo Substrates Biomethane 1 [10 3 Nm 3 /year] Straw (50%) 4,819,194 Bagasse (25%) 3,378,980 Filter cake 758,682 Vinasse 1,032,774 Total 9,940,628 Note: 1 CH4-95% (v/v) 28

29 Wastes to biomethane São Paulo Source of natural gas consumption: State of São Paulo, Energy Secretary (2012) 29

30 Results for citing 30

31 Results for citing 31

32 Kontakt DBFZ Deutsches Biomasseforschungszentrum gemeinnützige GmbH Torgauer Straße Leipzig Durchführer Absender Die Exportinitiative Erneuerbare Energien Seite 32