VPSA

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VPSA

The VPSA Biogas Purification System is an advanced gas upgrading technology used to convert raw biogas into high-purity Bio-CNG / CBG (up to 97–99% Methane) by selectively removing CO₂, H₂S, moisture, and impurities.

Unlike conventional chemical or water scrubbing systems, VPSA works on adsorption + vacuum regeneration, making it highly energy efficient, fully automatic, and completely chemical-free.

TECTIKO VPSA systems are specially designed for continuous 24×7 operation, with high methane recovery and low operating cost – suitable for SATAT, MNRE, and commercial Bio-CNG projects.

      Key Features

  • Methane purity up to 98%
  • High methane recovery (92–96%)
  • No chemicals, no water, zero waste discharge
  • Low energy consumption vs. PSA / Water Scrubbing
  • Long-life European molecular sieve media
  • PLC + SCADA monitoring with alarms & auto control
  • Skid-mounted compact modular design
  • Low maintenance – no moving internal parts

      Working Principle

  • Raw biogas passes through pre-treatment filters
  • Gas enters adsorption vessels filled with molecular sieve
  • CO₂ & impurities are trapped on the adsorbent
  • Methane passes through as purified Bio-CNG
  • Vacuum regenerates the beds, releasing captured CO₂
  • Twin-tower cyclic operation ensures continuous gas output
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      Parameter                                                 Specification

  • Feed Gas Flow                                       50 – 5000 Nm³/hr
  • CH₄ Purity                                               92% – 98%
  • Methane Recovery                                92% – 96%
  • Operating Pressure                               1.0 – 1.5 bar
  • Adsorbent Media                                  CMS / Zeolite Molecular Sieve
  • Pre-treatment Requirement                H₂S < 100 ppm, Dew point controlled
  • Automation                                           Fully automatic PLC-SCADA
  • Power Consumption                           0.18 – 0.25 kWh/Nm³ (typical)

      Applications

  • Bio-CNG / CBG Fuel Production
  • Vehicle Fuel (Automotive Grade CBM)
  • City Gas Distribution (CGD) Network Injection
  • Industrial & Commercial Fuel Replacement

      Benefits

  • Eco-friendly Technology (No chemicals, No wastewater)
  • Lower operating cost compared to chemical/water systems
  • High methane recovery = more CBG sale output
  • Low maintenance, long media life (8–10 years)
  • Fast start-stop capability – ideal for distributed plants
  • Works smoothly even with fluctuating biogas composition