Lummus introduces new technology for converting C5 streams into isoamylene
Last update on Jun 2, 2026
Lummus Technology announced the commercial launch of Thermacrack™ C5.
According to Lummus, this new technology will help producers increase production efficiency and reduce capital investment for specialty chemicals.
Enhanced efficiency, reliability and product quality
Lummus reports that this launch is build on commercial deployment of Thermacrack™ C4 process, used for MTBE and ETBE backcracking to produce high‑purity isobutylene. The development also draws on the company's experience in TAME production, which serves as the primary feedstock source for isoamylene. Thermacrack™ C5 extends this platform to C5 streams and leverages backcracking and feedstock capabilities to produce isoamylene.
“With Thermacrack processes, we can deliver an effective solution that directly addresses our customers’ needs for efficiency, performance, reliability and product quality,” said Romain Lemoine, chief business officer, Lummus Technology. “This technology enhances production economics while supporting growth in high‑value specialty applications such as adhesives, antioxidants and performance additives.”
Key advantages:
High‑purity isoamylene production with improved conversion and selectivity
Reduced byproduct formation, simplifying downstream processing
Lower energy consumption improves operating economics and reduces emissions
Reliable, continuous operation with reduced downtime
- Flexible integration with existing units enables seamless retrofits or expansions
According to the company, Lummus licenses etherification and backcracking technologies and supports these technologies through its global installed base and operating experience. The company said the Thermacrack™ platform expands its technology offering to a broader range of feedstocks and is intended to support customers seeking to optimize asset utilization and access additional market opportunities.