HFO-1234yf Green Refrigerant: CSIR-IICT Indigenous Process
Why in the news
Two CSIR laboratories showed home-grown climate technology in July 2026: a refrigerant process from Hyderabad and an algae-based carbon capture unit from Dhanbad.
Key facts
- Refrigerant: Hydrofluoroolefin-1234yf (HFO-1234yf), produced through an indigenous process by CSIR-IICT, Hyderabad.
- Purpose: a substitute for HFCs in cooling and AC equipment; supports Atmanirbhar Bharat.
- SALT: Smart Algal Liquid Tree, a mobile photobioreactor using microalgae to take in CO₂.
Two innovations compared
| Item | Lab | Role |
|---|---|---|
| HFO-1234yf process | CSIR-IICT, Hyderabad | Refrigerant replacing HFCs |
| Smart Algal Liquid Tree | CSIR-CIMFR, Dhanbad | CO₂ absorption with microalgae |
Where SALT is installed
- CSIR-CIMFR itself.
- NCL, Singrauli, Madhya Pradesh.
Exam angle
- Match the laboratory with the invention: IICT with HFO-1234yf, CIMFR with SALT.
- Know that SALT is a mobile photobioreactor working through microalgae.