Final Year Chemical Engineering Plant Design Project Production of Biogas from Solid

Plant Design Project Production of Biogas from Solid



What is biogas?

Biogas is a byproduct of the decomposition of organic matter by anaerobic bacteria.

Biogas is typically composed of 60% methane and 40% CO2. It is similar to natural gas which is composed of 99% methane.

Biogas is a clean and renewable energy that may be substituted to natural gas to cook, to produce vapor, hot water or to generate electricity.

At room pressure and temperature biogas is in gaseous form, not liquid like LPG (propane). Bottling biogas is a very expensive process.

How does it work?

Organic waste is put into a sealed tank called a digester (or bioreactor) where it is heated and agitated. In the absence of oxygen anaerobic bacteria consume the organic matter to multiply and produce biogas.

What type of waste produces biogas?

Any organic waste has the ability to produce biogas: human excreta, manure, animal slurry, fruit and vegetable waste, slaughterhouse waste, meat packing waste, dairy factory waste, brewery and distillery waste, etc.

Fiber rich wastes like wood, leaves, etc. make poor feedstocks for digesters as they are difficult to digest.


Final Year Chemical Engineering Plant Design Project Production of Biogas from Solid
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