Research of biogas in West Parana State University - UNIOESTE

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1 Research of biogas in West Parana State University - UNIOESTE Prof. Dr. Samuel Nelson Melegari de Souza Research Group: Energy and Agricultural Sustainable GEAS, CNPq Samuel.Souza@unioeste.br

2 UNIOESTE West Paraná State University - Brazil Iguazu Falls West Paraná State - Brazil State of Paraná - Brazil

3 Agriculture Index in West Parana State Agriculture: Soy, Corn and Wheat Paraná has the highest productivity in Brazil Good Soil and Climate conditions; Animal farmers: Chicken and pig (swine) shelter Chicken Production Brazil: 50 Millions of heads; 12.9 Millions MTonnes; Brazil is the largest exporter of chicken meat; 4.4 Millions MTonnes Paraná has the major participation; 34.46% of the Slaughtering. The West of Paraná participate with 29% of the Paraná`s exportation of Chicken.

4 Agriculture Index in Paraná and West of Paraná. Swine Brazil : 2 Millions of heads; 3.7 Millions of Tonnes Paraná has the third swine production of Brazil (22.9% of slaughtering), and West of Paraná, represents 50% of that; Milk Production Paraná has the second milk production of Brazil and West of Paraná is the first in it. 5 billions of liters.

5 Disposal of waste In front what was exposed above, the results are a production of waste from animal farming and food industry processing Nowadays the farmers and some food processing plants are treating the waste in biodigesters.

6 The contribution of UNIOESTE to West Paraná Region. Research Group: Energy and Agricultural Sustainable GEAS Research Line: Biomass and Biofuels Postgraduate Course: Master in Energy Engineering in Agriculture.

7 The contribution of UNIOESTE to West Paraná Region. Biodigestion of waste from food and others. Avaliation of Engines for electricity generation with biogas. Upgrading of biogás. Researchers: Prof. Dr. Samuel Nelson Melegari de Souza - UNIOESTE Prof. Dr. Reinaldo Aparecido Bariccatti - UNIOESTE Prof. Dr. Armin Feiden - UNIOESTE Prof. Dr. Helton José Alves - UFPR

8 Biodigestion of waste from food Manufacturer: Biokholer - Marechal Cândido Rondon, PR, Brazil

9 Biodigestion of waste from food. Results of research Parameters Unit Value Feed frequency of the biodg. Days Week -1 5 Volume of digesterr L 408 Volume feeding L d -1 2,5 AV/AT - 0,49 Temperature C 29,4 Reduction of COD % 82,3 Reduction of VS % 90,2 COD added g d ,5 VS added g d ,0 Organic Load (COD) g COD d ,4 Organic Load (VS) g VS d ,7 Volumetric Organic Load g VS L -1 rd -1 0,798 Biogas per day L d ,5 Biogas per volume of biodigester L L -1 rd -1 0,540 Biogas per waste digestated L kg Methane per day L d Methane per volume of biodigester L L -1 rd -1 0,319 Methane per COD reduced L g -1 COD c 0,506 Methane per VS reduced L g -1 VS c 0,444 Parameters for future projects, After stabilization: 196 L biogas/kg digestate

10 Avaliation of biogas engine of electrical generation kva Technical parameters of the engine: Biogas engine - MWM 6.12T; Rotation: 1800 rpm; Generator Gramaco G2R 200 MB4; Number of poles: 4 ; Nominal Power: 104 kva.

11 Avaliation of biogas engine of electrical generation kva Ideal 2 kwh/m 3 of biogas 1.1 kwh/m 3 of biogas

12 Filling PVC Biogas Water Column for reduction of CO 2 concentration in biogas. There is a countercurrent of Water and biogas Bottom Inlet biogas Top Inlet water (3 5 Bar)

13 Objective: Increase the LHV of biogas

14 Results of reduction of CO 2 concentration in biogás by the column Results Test Pressure of the Water flux Concentration of column (kpa) (cm 3 s -1 ) CO 2 (%) 1 329,52 437,50 22, ,14 208,33 19, ,65 581,25 22, ,20 220,83 17, ,53 207,08 15,25 Biogas 65% CH4 e 35% CO Biogas 85% CH4 e 15% CO2

15 Water scrubber for upgrading of (Hydrogen Sulphide) H 2 S and (Carbon Dioxide) CO 2 removal in biogas Developing of a low pressure, water scrubber prototype. It was used two water based solutions as filtering element: iron sulphate III in water solution at 4,0 g/l (or 0,01mol/l) and sodium carbonate in water solution at 10,0 g/ l (or mol/l). Water Solution Biogas

16 Water scrubber for upgrading of (Hydrogen Sulphide) H2S and (Carbon Dioxide) CO2 removal in biogas Recirculation of the solution saturated in 30 minutes. Sodium Carbonate. PH = 9 H 2 S - (HS - and S 2- ) Soluble in water. Iron sulphate (S 2- and S o ) S o - Fertilizer to Iron sulphate

17 Water scrubber for upgrading of (Hydrogen Sulphide) H 2 S and (Carbon Dioxide) CO 2 removal in biogas Results iron sulphate III in water solution : Upgrading around 30 % on CO 2 and 75 % on H 2 S ; sodium carbonate in a water solution : Upgrade around 55 % on CO 2 and 99 % on H 2 S. The upgrade process efficiency is highly time dependent and a good upgrade results, during the time, were achieved using sodium carbonate in a water solution.

18 Thanks!!!