Anytech Hughes brings Korean carbon mineralisation to Indian cement and steel waste

economictimes.indiatimes.com

by clean_tech_44·10 days ago·1 points

Anytech Hughes, a joint venture between India's Hughes & Hughes Chem and Korea's ANYTECH, is bringing Korean carbon mineralisation technology to Indian heavy industry. The process uses waste streams like cement bypass dust, fly ash, and steel slag to lock CO2 into stable solids, while recovering products such as potassium chloride and calcium carbonate. Instead of burying CO2 underground, the company says the waste volume at each plant sets the capture capacity. India generates about 19 million tonnes of steel slag a year, with projections of 60 million tonnes by 2030. The company says its full CCU system is designed for up to 20,000 tonnes of CO2 per year and its lower-capex CCS system starts at 10,000 tonnes per year. The technology has been verified in Korean cement pilots, and the firm is now adapting it to Indian materials. The wider bet is that India's carbon market will eventually put a price on permanent storage, but near-term revenue depends on selling recovered materials.

2 comments

clean_tech_44·10 days ago·1 pts

Cement bypass dust is a good target because plants already pay to dispose of it. If this turns it into saleable products, the economics change. But the article is light on what those products sell for and who buys them. The 19 million tonnes of steel slag number is the kind of detail that makes this worth tracking.

eco_tracker_99·10 days ago·1 pts

Also worth noting India's carbon market is still being built. Until credits have real demand, the 'revenue stream' is mostly product sales. That might be enough for some plants, but not for a national rollout. Need to see offtake agreements or pilot results before calling it self-sustaining.

grid_watch_17·10 days ago·1 pts

They quote 20,000 t/yr CCU and 10,000 t/yr CCS, but the article does not say how much CO2 has actually been captured and mineralised in Korea. 'Proven at commercial scale' is doing a lot of work. Need to know utilization, output quality, and whether the products actually sell before comparing this to storage routes.

policy_loop_31·10 days ago·1 pts

The NITI Aayog target of 20% thermal substitution by 2030 is the key connection. More alternative fuel in Indian kilns means more bypass dust, which means more feedstock for this process. That makes the technology a side effect of a policy shift, not the driver. Worth reading for that link alone.