Why in news?

Union Coal and Mines Minister promoted surface coal gasification at a roadshow, stating the technology has the potential to substitute imports worth up to ₹3 lakh crore.

The Union Cabinet approved a ₹37,500-crore incentive package to encourage coal gasification — a significant policy push to utilise India's vast coal reserves while reducing import dependence on key industrial chemicals.

What’s in Today’s Article?

• What is Coal Gasification?
• Why Does India Need Coal Gasification?
• India's Targets and Financial Support
• The Technical Challenge — India's High-Ash Coal
• The Indigenisation Challenge and Opportunity

What is Coal Gasification?

• Imagine taking coal — a solid fuel — and converting it into a useful gas. That is essentially what coal gasification does.
• It converts coal into synthetic gas (syngas) — a mixture of hydrogen and carbon monoxide — which can then be used as a raw material to produce a wide range of valuable downstream products.
• What Can Syngas Produce?
  • Urea — critical for fertilisers
  • Ammonia — used in fertilisers and chemicals
  • Methanol — used as fuel and in chemical manufacturing
  • Synthetic Natural Gas (SNG) — substitute for natural gas
  • Hydrogen — clean energy fuel
  • Ammonium nitrate, ether, dimethyl ether — various industrial uses

Why Does India Need Coal Gasification?

• India is currently heavily import-dependent for several key industrial chemicals that can be produced domestically through coal gasification:
  • Urea — India imports one-fifth of its requirement.
  • Ammonia — India imports almost its entire requirement.
  • Methanol — India imports approximately 80-90% of its requirement.
• Meanwhile, India sits on vast coal reserves — approximately 401 billion tonnes of coal and about 47 billion tonnes of lignite — making it one of the most coal-rich countries in the world.
• Coal gasification offers a way to leverage these domestic resources to produce chemicals that India currently spends enormous foreign exchange importing — directly improving energy security, reducing the current account deficit, and creating domestic industrial capacity.

India's Targets and Financial Support

• The Ministry of Coal has set a target of gasifying 100 million tonnes of coal by 2030.
• The recently announced scheme aims to support gasification of about 75 million tonnes of coal and/or lignite to reach this target.
• Financial Incentives
  • ₹8,500 crore package — approved in January 2024; of this, ₹6,233 crore disbursed to eight projects.
  • ₹37,500 crore package — recently approved, providing incentives amounting to one-fifth of plant and machinery costs — recognising that capital costs are the single largest cost component in gasification projects.
• Key Projects and Their Timelines
  • Talcher Coal-based Ammonia-Urea Complex — Expected commissioning: FY2027-28.
  • Projects converting coal to syngas, ammonium nitrate, direct reduced iron, ethanol, and hydrogen — Expected commissioning: FY2029-30.
• Key Players
  • Public Sector — Coal India (joint ventures with BHEL and GAIL), Coal India's own project in Western Coalfields.
  • Private Sector — Jindal Steel and Power, Greta Energy and Metal.

The Technical Challenge — India's High-Ash Coal

• This is the most critical and distinctive challenge in India's coal gasification programme — one that sets India apart from all other major coal-gasifying nations.
• Indian coal has very high ash content — along with variability in gross calorific value (GCV) and the presence of complex mineral matter.
• These characteristics make standard gasification technologies used in countries like China, Australia, and the US — where coal quality is significantly better — unsuitable for Indian coal.
• What Technology Suits Indian Coal?
  • Fluidised-bed gasification is considered particularly suitable for high-ash Indian coal.
  • This technology uses a gas stream that lifts the coal out of ash and then gasifies it with heat — allowing it to handle the variability and high ash content that would clog or damage conventional gasifiers.
  • BHEL has specifically developed a pressurised fluidised-bed gasifier technology tailored to handle the high ash content and variability of Indian coal — an important step toward indigenous technological capability.

The Indigenisation Challenge and Opportunity

• Coal gasification projects are by their very nature highly capital-intensive with long gestation periods.
• According to a research, capital costs constitute nearly 30% of total syngas production costs — making financial viability the central challenge.
• BHEL — has developed indigenous pressurised fluidised-bed gasifier technology; its 16 facilities are capable of producing all critical components for gasification.
• Jindal Steel and Greta Energy — have indigenised approximately 80-90% of their production requirements.
• At its maturing stages, coal gasification may still require technology imports — particularly from China, which is the world leader in gasification technology.
  • Industry has sought government consideration of exemptions from DPIIT regulations for acquiring necessary technologies from China.

Conclusion

• India's coal gasification push sits at the intersection of several critical policy priorities — energy security (reducing import dependence), industrial policy (creating domestic chemical manufacturing capacity), agricultural security (domestic urea and fertiliser production), Aatmanirbhar Bharat (indigenising technology), and sustainable mining (better utilisation of coal resources).
• However, the programme faces significant challenges including technical adaptation for high-ash coal, capital intensity, long project gestation periods, and dependence on Chinese technology at scale.