PetroChina has successfully developed and commercialized complete ethylene production technology
- Technology
- HQC Steam Cracking

1.2 Million tonnes per year ethylene plant of PetroChina Guangdong Petrochemical | Sina Finance (Dec 2023)
Following Sinopec's CBL cracking technology, PetroChina has successfully developed and commercialized complete ethylene production technology, breaking decades of international monopoly in this critical sector.
This achievement represents a fundamental shift in the global petrochemical landscape. Before 2012, China—the world's second-largest ethylene consumer—relied almost entirely on imported technology for large-scale ethylene production. HQC's successful development ended this dependency, making China the fourth country globally to master complete ethylene production technology.
HQC technology supports single-train capacities from 600 ktpa to 1,500 ktpa:
600 KTP
- Petrochina Daqing Petrochemical naphtha cracker (2012)
- Dushanzi Petrochemical Tarim ethane cracker (2021)
800KTPA
- Lanzhou Petrochemical Changqing ethane cracker (2021)
1,200 KTPA
- uangdong Petrochemical mixed feed cracker (2023)
- Guangxi Petrochemical mixed feed cracker (2025)
- Dushanzi Tarim Phase II mixed feed cracker (Sep 2026 prospective commissioning) Hohhot
- Petrochemical ethane cracker with CCUS in Ordos (project construction timeline Jun 2025-Jun 2028)
1,500 KTPA
- Super-large scale technology validated (2024)
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