gas yields table
DESCRIPTION
Gas Yields TableTRANSCRIPT
Gas Yields Table
This table is only intended to provide indicative results. All values are approximate and can vary extremely. Gas yields depend highly on dry matter content, storage feedstock, handling feedstock. For an exact calculation feedstock testing is definitely necessary.
All data approximately and can vary for exact data further samples are necessary
Dry solids (data can vary)
Organic dry solids (data can vary)
Specific gas-production per oDS (data can vary)
Gas-production per tonne fresh material (data can vary)
Produced kilowatt-hours per t FM (35 %electrical efficiency CHP, Heating value 21 MJ/m3, 55 % Methane content, 3.6 MJ/kWh)
Kilowatt per tonne fresh material and day
Unit
% of Fresh material
% of DS m3 /t oDS m3/t FM kWh/t FM kW/t FM d
Animal carcasses (homogenised
30.0 90 900 243.0 496.1 20.7
Animal fat* 90.0 90 850 688.5 1405.7 58.6Beet top 12.0 70 420 35.3 72.0 3.0Blood* 8.0 90 600 43.2 88.2 3.7Canteen waste/food waste
20.0
85 700 110.0 224.6 9.4
Cattle-dung 25.0 80 300 60.0 122.5 5.1Cattle-slurry 8.0 80 320 20.5 41.8 1.7 Cereal slop (alcohol production)
6.0 90 480.0 25.9 52.9 2.2
Cereals/grains 85.0 95 650 524.9 1071.6 44.7Chaff 85.0 90 350 267.8 546.7 22.8 Chicken litter/dung 40.0 75 420 126.0 257.3 10.7Chip fat 95.0 87 1000 826.5 1687.4 70.3 Clover 15.0 88 520 68.6 140.1 5.8Concentrated whey 15.0 90 800 108.0 220.5 9.2 Corn Cob maize (CCM) 60.0 95 600 342.0 698.3 29.1Draff from beer production
20.0 80 500 80.0 163.3 6.8
Fat 95.0 87 1000 826.5 1687.4 70.3Fermentation slops 1.8 98 750 13.2 27.0 1.1Food waste (disinfected)
20.0 85 700 110.0 224.6 9.4
Fruit Pomace 20.0 90 520 93.6 191.1 8.0 Fruit residuals 20.0 80 350 56.0 114.3 4.8Fruit slop 2.0 95 450.0 8.6 17.5 0.7 Fruit wastes 15.0 90 550 74.3 151.6 6.3Glycerine* 100.0 95 750 712.5 1454.7 60.6 Grass fresh 18.0 90 450 72.9 148.8 6.2Grass silage 25.0 85 550 116.9 238.6 9.9Grease trap 13.0 95 800 98.8 201.7 8.4Gut and Stomach/Intestines content
15.0 80 400 48.0 98.0 4.1
Hemp cake 88.0 93 105 85.9 175.4 7.3 Horse manure 28.0 80 250 56.0 114.3 4.8Maize silage 32.0 95 660 200.6 409.6 17.1Municipal solid waste, MSW (brown bin)
35.0 50 580 101.5 207.2 8.6
Old bread 65.0 95 700 432.3 882.5 36.8Pig slurry 4.5 80 320 11.5 23.5 1.0 Potato top 12.8 87 420 46.8 95.5 4.0Potato pulp 15.0 95 650 92.6 189.1 7.9 Potatoes 25.0 92 680 156.4 319.3 13.3Pure fat (rendering plants)*
99.0 100 750 742.5 1515.9 63.2
Rape seed-silage 16.0 80 500 64.0 130.7 5.4Rapeseed cake 85.0 93 680 537.5 1097.5 45.7Residuals from vegetables
20.0 80 450 72.0 147.0 6.1
Sewage sludge 12.0 80 490 47.0 96.0 4.0Silage effluent* 1.4 95 800 10.6 21.7 0.9 Silage from grain (whole plant)
28.0 90 550 138.6 283.0 11.8
Sugar beet chopped 25.0 85 580 123.3 251.6 10.5 Sugar beet leaves siliert
22.0 75 450 74.3 151.6 6.3
Whey* 5.0 90 750 33.8 68.9 2.9 Sources: FNR (Biogashandreichung), KTBL-website, LfL-website, Big East Biogas handbook
Average biogas yields of some important materials are presented in the list above. These indicated yields are approximate values. For exact gas yields further analysis is necessary. With the gas yield the possible produced kWh by the cogeneration unit can be calculated (see complete list with more substrates).
Explanations for list:
Abbreviations % Percent kW Kilowatt CHP Combined Heat Power kWh Kilowatt hours D Day m3 Cubic MeterDM Dry Matter = dry solids MJ MegajouleDS Dry Solids = dry matter oDM Organic Dry MatterFM Fresh material oDs Organic dry solids = organic dry
matter kg kilogramm t Tonne = 1000 kg