Compressed Bio Gas (CBG)
What is Compressed Bio Gas (CBG)?
Compressed Bio Gas (CBG) means the mixture of hydrocarbon gases and vapours consisting mainly of Methane in gaseous form, which has been produced by the decomposition of animal and plant waste, purified and compressed for use as an automotive fuel and industrial application.
Biogas can be compressed after removal of carbon dioxide and hydrogen sulphide, the same way as natural gas is compressed to CNG, and used to power motor vehicles.
Irrespective of technology, producing CBG from biomass involves a two-pronged approach:
- Biogas is produced through anaerobic decomposition of biomass.
- Since biogas contains 55 to 60 per cent methane, 40 to 45 per cent carbon dioxide (CO2) and trace amounts of hydrogen sulphide.
- The second process involves purifying the gas to remove carbon dioxide and hydrogen sulphide gases to prepare CBG.
bENEFITS
Benefits of Compressed Bio Gas (CBG)
01
Compressed Bio Gas (CBG) is produced from organic waste material, making it a great renewable energy source. It also reduces use of fossil fuels.
02
CBG production captures methane – a potent greenhouse gas from decomposing organic matter. When used as a fuel, CBG is a great alternative to traditional fossil fuels like diesel, significantly reducing carbon emissions.
03
CBG production and distribution create a new business opportunity, especially in rural areas. It can generate new job opportunities. CBG reduces energy costs which is considered to great financial alternative.
04
The anaerobic digestion process used to produce CBG creates a byproduct called digestate, which is a nutrient-rich organic fertilizer.
| Fuel | Calorific Value |
| CNG | 11000.00 Kcal/Kg |
| Compressed Bio Gas (CBG) | 11348.70 Kcal/Kg |
Chemically, CBG is the same as CNG both are compressed methane and has the almost same calorific value.
The difference is that while CNG is a by-product of petroleum, CBG can be produced from any biomass.
This makes CBG a commercially viable option as it can be directly used to
replace CNG in transportation fuel.
Just like CNG, CBG too can be transported through cylinders or pipelines to retail outlets.
- It is a rich source of silica that not only aids in the growth and yield of crops but also bestows immunity against many diseases and prevents toxic material uptake by plants such as arsenic, cadmium, lead and other heavy metals.
- It can thus help reduce the requirement of chemical fertilisers.
- It can be tapped while purifying the biogas and used to produce liquid or solid CO2, which have high demand for food preservation or to be used in fire extinguishers.
| Composition of CBG (IS 16087: 2016 Standard) | ||
| Sr No. | Characteristic | Requirement |
|---|---|---|
| 1 | Methane (CH4), Minimum | 90.00% |
| 2 | Carbon Dioxide (CO2), Maximum | 4% |
| 3 | Carbon Dioxide (CO2) + Nitrogen (N2) + Oxygen (O2) Maximum | 10% |
| 4 | Oxygen (O2) Maximum | 0.50% |
| 5 | Total Sulphur (including H2S) mg/m3, Maximum | 20 mg/m3 |
| 6 | Moisture mg/m3 , Maximum | 5 mg/m3 |
Compressed Bio Gas Standard
Compressed Bio Gas (CBG) to be supplied shall meet IS 16087:2016 specifications of BIS (detailed below)
and any other further revisions in the said specifications.
Also, as per the IS 16087:2016 specifications, the following shall also be met
CBG shall be free from liquids over the entire range of temperature and pressure encountered in the
storage and dispensing system
The CBG shall be free from particulate matter such as dirt, dust, etc.
CBG delivered shall be odorized similar to a level found in local distribution (ref. IS 15319)
What We Do
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At Green Grass Bioenergy, we provide an overreaching range of biogas solutions to help you turn waste into renewable energy. Whether you’re looking to generate electricity, heat, or renewable natural gas, we have the expertise and technology to make your biogas project a success.
- Organic Fertilizer
- Biogas from Waste
- Napier Grass
- Organic Fertilizer
We produce organic fertilizer using biogas. A biogas fertilizer can function as a plant growth stimulator and bio-fungicide. - Biogas from Waste
We offer comprehensive organic waste collection and management services, turning your agricultural, industrial, or household waste into clean energy. - Napier Grass
Napier Grass (Pennisetum sp.), also known as Elephant grass or Uganda Grass as it is inherent to African grasslands. Napier grass is a perennial tropical grass.
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