Slide LSE 04 Biologi

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Global Energy Sources

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Bioenergy Technologies

Biochemical Conversion

anaerobic digestion anaerobic

digestion fermentationfermentation

Extraction (oilseeds) Extraction (oilseeds) digestion

digestion (oilseeds)(oilseeds)

Biogas

Destilation

Ethanol

Transesterification

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Municipal solid waste

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Keunggulan

1. Mengurangi ketergantungan terhadap bahan bakar fosil

bahan bakar fosil

2. Meningkatkan kualitas lingkungan

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Gas yang dihasilkan melalui proses fermentasi

secara anaerobik dari bahan-bahan organik

seperti kotoran hewan (manusia), limbah

domestik (rumah tangga) atau limbah organik

lain.

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Komponen %

Metana (CH₄) 55-75

Karbon dioksida (CO₂) 25-45

Nitrogen (N₂) 0-0.3

Kandungan gas yang terdapat pada Biogas

Nitrogen (N₂) 0-0.3

Hidrogen (H₂) 1-5

Hidrogen sulfida (H₂S) 0-3

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Skema Bioreaktor

A : Digester

B : Penampung Lindi C : Penampung Biogas A : Digester

B : Penampung Lindi C : Penampung Biogas

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1100

Sampah Pasar

Bahan

Biogas (ml/kg Biomasa)

Kulit Pisang 2480 Kol 1520 Sampah Pasar

G. Batu 4500 Sampah pasar

Laladon 2320

0

Kulit pisang kol

sampah gunung batu

sampah laladon Nanas

Laladon

Kulit Nanas 1720

Hari

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Sebuah bahan bakar alternatif

yang diperoleh dari bahan-bahan

organik (biomass) melalui proses

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Production schemes for bioethanol

• Bioethanol is mainly produced in three ways.

– sugar ethanol

starch sugar ethanol

cellulose and hemicellulose ethanol

Bioethanol is mainly produced in three ways.

sugar ethanol

– starch sugar ethanol

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The main reaction involved is fermentation

C₆H₁₂O₆

sugar (e.g.:-glucose)

yeast

2 C₂H₅OH

ethanol

+ 2 CO₂

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