Raj Process is a pioneer in compressed biogas (CBG) plant manufacturing in India, offering patented technology for biogas generation and purification. With decades of expertise and a proven track record, we deliver world-class turnkey solutions that convert organic waste into high-purity CBG — a sustainable and eco-friendly alternative fuel.
As India accelerates towards a clean energy future, Raj Process proudly supports SATAT (Sustainable Alternative Towards Affordable Transportation) and GOBARdhan initiatives by designing and executing next-generation CBG plants across India and abroad.
🔬 Biogas Generation Technology
Raj Process has developed a patented CSTR-based biodigester with a unique combination of central and lateral agitation. This innovation enhances biogas yield and ensures efficient organic waste treatment, making it one of the most advanced anaerobic digestion systems available.
What is a CSTR-Based Biodigester?
A Continuous Stirred Tank Reactor (CSTR) biodigester processes organic waste such as agricultural residues, food scraps, and sewage sludge in the absence of oxygen. The result: valuable biogas (methane + CO₂) and nutrient-rich digestate for use as fertilizer.
⚙️ Turnkey Compressed Biogas Plant Solutions
Raj Process offers end-to-end CBG plant solutions, including:
Plant Design & Engineering → Optimized for efficiency, safety, and sustainability
High-Quality Equipment Manufacturing → Precision-built at five advanced facilities
Biogas Upgradation Systems → Achieving >96% methane purity
Automation & Process Control → PLC-based monitoring for safety and performance
Installation, Commissioning & Training → Seamless execution with full operational support
🔄 How Raj Process CBG Plants Work
1
Biogas Generation
Core Process
Organic feedstock undergoes anaerobic digestion in a CSTR biodigester.
Operates under mesophilic conditions for stability
Converts press mud, distillery waste, cattle dung, and agri-residues
Produces raw biogas rich in methane and CO₂
2
Biogas Cleaning & Upgradation
High Purity
Raw biogas is purified to achieve >96% methane content.
Absorber columns remove H₂S and CO₂
Aerobic reactors and sulphur recovery units
PLC-based controls with real-time gas analyzers
Central gas holders maintain consistent pressure
Compression & Bottling
Final Output
Purified biogas is compressed and stored as CBG.
Compressed to 200 bar using energy-efficient compressors
Bottled for transport and storage
Ready for automotive, industrial, and power applications
🚗 Applications of Compressed Biogas (CBG)
Automotive Fuel Replacement → Substitute for CNG and LPG
Industrial Heating & Power → Green alternative to fossil fuels
Electricity Generation → Via gas engines and turbines
Thermal Energy → Steam and hot water systems in industries
🌍 Benefits of Raj Process CBG Plants
Environmental Sustainability → Reduces GHG emissions, diverts waste from landfills
Energy Security → Less dependency on imported fossil fuels
Economic Value → Converts agri-residues and waste into energy
Compliance-Ready Designs → Aligned with SATAT & GOBARdhan initiatives
Future-Ready Solutions → Seamless integration with ethanol plants, distilleries, and biomass complexes
🏆 Why Raj Process Leads in CBG Plant Manufacturing
Turnkey Expertise → From design to commissioning
Advanced Upgradation Systems → Achieving >96% methane recovery
Five State-of-the-Art Units → Precision-built equipment for guaranteed performance
Global Execution → Projects across India, Brazil, Africa, and Southeast Asia
Sustainability-Driven Designs → Integrated solutions for Zero Liquid Discharge (ZLD)
Raj Process also offers diverse gas purification technologies including biochemical scrubbing, chilled water scrubbing, PSA, VPSA, and membrane-based systems — ensuring flexibility and efficiency for every project.
