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Biogas Technology Overview

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Bio Gas Technology

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Bio Gas Technology-Quick facts

Biogas is produced by the anaerobicdecomposition of organic matterPrinciple

Large scale biogas systems can be designed

to cater to the requirementsCapacity

Customized solution can be found for BiogasplantArea Required

The system functions for 350 days a year on24 hrs basisPeriod ofFunctioning

System can be used for cooking, vehiclefilling and power generationBio gas utility

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Bio Gas Technology-Quick factsBiogas Calorific Value 4500 kCal/kg or 21 MJ/m3

1 m3 of biogas has energy content equivalent to

LPG 0.4 kg

Diesel Fuel 0.5 litres

1 m3 of biogas can generate 1.7 kWh(el) (depending of efficiency of

generator)

2.5 MT of Kitchen waste per day Biogas Plant reduces 862 tons of CO2

emission per annum

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Bio Gas Technology-Quick facts

The biogas slurry is rich in nitrogen, the essential nutrient for plantgrowth

Percent N-P-K

N stands for nitrogen, which is responsible for strong stem and foliage

growth.P is for phosphorus, which aids in healthy root growth and flower and

seed production.

Kstands for potassium, which is responsible for improving overall

health and disease resistance

N P2O5 K2O

Bio-gas slurry 1.4 1.0 0.8

Farm Yard Manure

(FYM)0.5 0.2 0.5

Town Compost 1.5 1.0 1.5

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Components of biogas system

Feeding System

Depending on typeof biogas plant, all

bio-degradablematerial can be fedinto the digester. Theraw material mayneed to be crushedand mixed withwater/outlet slurryand feed into thedigester.

Gas GenerationSystem

The digester is theheart of the biogas

plant. Biogasproduction is ananaerobic microbialprocess which takesplace in the digester.The process involvesthe combined actionof four differentsteps i.e.

a. Hydrolysis b. Acidogenic

c. Acetogenic

d. Methanogenic

Gas DistributionSystem

Biogas producedinto digester is

either enriched ordistributed throughpipeline to thehouseholds mainlyfor cooking purpose.The biogas can bedistributed withequal pressure withthe help of GPRS

(Gas PressureRegulating System)developed byExcellent.

Gas EnrichmentSystem

The produced biogascan be enriched with

the help Low-Scrubbwater scrubbingtechnologydeveloped byExcellent. Theenriched biogas isequivalent to naturalgas quality and canbe used as vehicle

fuel aftercompression or forany other purpose

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Evolution of Technology and Size

2007

Domestic Plants,

KVIC model

2009

2010

2011

2012

Community Plants

Conventional

2008

Larger Community Plants, added

Piping and Pressurizing

Added Bottling, Scrubbing.

MUASB Technology

Large size, CSTR (German)

Technology

CSTR Technology with Bottling,

Piping and Power Generation

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