Purification

Unit

In order to improve the calorific value and energy content, methane concentration shall be increased and in turn CO2 & hydrogen sulphide (H2S) shall be removed. Some of the available technologies for removal of H2S are Iron chloride dosing, Water scrubbing, Activated Carbon and Amine Process. For removal of carbon dioxide, the following technologies are prevalent:

Pressure Swing Adsorption (PSA)

Outlook

Structure

This technology is prevalent for large bio-gas systems in India. With this technique, carbon dioxide is separated from the biogas by adsorption on a surface under elevated pressure. The adsorbing material, usually activated carbon or zeolites, is regenerated by a sequential decrease in pressure before the column is reloaded again, hence the name of the technique. Hydrogen sulphide and water needs to be removed before the PSA-column.

commercial digestor

Digesters are industrial-sized systems designed to handle substantial volumes of organic waste efficiently.

it uses a process called anerobic digestion to turn the waste into our desired bio gas

STRUCTURE

OUTLOOK

Typically deployed in large-scale settings such as industrial facilities, agricultural operations, or municipal waste treatment plants, commercial digesters tackle the challenge of processing significant amounts of organic material on a daily basis.

One key characteristic of commercial digesters is their robust construction and advanced technology. These systems are engineered to withstand the demands of continuous operation, ensuring durability and reliability. They often incorporate state-of-the-art features such as automated controls, monitoring systems, and advanced mixing mechanisms to optimize the digestion process.

In terms of capacity, commercial digesters can process tons of organic waste per day. These systems are well-suited for handling the waste generated by entire communities, industries, or agricultural operations. By efficiently breaking down organic materials, commercial digesters contribute to the production of biogas, a renewable energy source, and nutrient-rich fertilizers.

The scale of commercial digesters allows for the generation of substantial amounts of biogas, which can be harnessed for various applications, including electricity generation or heating. Additionally, the resulting digestate, a byproduct of the digestion process, can be utilized as a potent fertilizer, closing the loop on sustainable waste management.

The purified biogas with more than 90% of methane can be compressed at 250 bar, and transported in gas cylinders (cascades) for the end use.

OUTLOOK

STRUCTURE

The compressed biogas will be filled and transported through cascades which is a group of high pressure cylindrical vessel. For delivery of CBG, 3000 litres metal cascades or cascades of higher capacity shall be used. Steel cylinder cascades and composite cascades may be used for transportation of CBG. For steel cylinder cascades, IS 7285 shall be applicable. If type-3 or type-4 composite cascades are used, respective BIS specifications like IS 15935 or relevant specifications shall be applicable.

GAS BALLOON

Biogas Balloon is a collapsible, inter mediated storage tank .Biogas balloon eliminates the use of conventional metal tank, currently used as intermediate storage.

OUTLOOK

• Sustainable Storage: The Bio CNG Gas Balloon provides a reliable and eco-friendly way to store biogas, reducing greenhouse gas emissions and promoting a circular economy.
  
• Flexible Design: Made from durable, high-quality materials, the balloon is designed to expand and contract as needed, accommodating varying volumes of gas.
  
• Efficient Storage: The gas balloon's unique design ensures minimal gas leakage, optimizing storage efficiency and minimizing energy loss.
  
• Easy Installation: The lightweight and portable nature of the balloon makes installation a breeze, requiring minimal infrastructure and resources.
  

COMPRESSOR UNIT

OUTLOOK

STRUCTURE

Production of biogas could be a continuous process. The utilization of biogas as an efficient energy source depends strongly on its methane concentration. Therefore, biogas purification is essential in order to have more energy per unit volume of compressed biogas and to get rid of the corrosive effect of H2S. Biogas purification process increases the methane concentration and decreases the carbon dioxide concentration in biogas, which in turn would result in higher calorific value. The purified biogas is compressed as CBG with methane content of more than 90%, and the CBG shall be complied to IS 16087:2016 specifications of BIS.

Some of the technologies which are prevalent in removal of carbon dioxide are Pressure Swing Adsorption (PSA), Vacuum Swing Adsorption (VSA), Water scrubbing, Membrane Separation and Chemical scrubbing - Monoethylammine (MEA) system.