On May 30th, a significant milestone was achieved as the R&D and demonstration projects of key technologies for coal gasification power generation and methanol co-production systems, jointly developed by Yankuang Group and East China University of Science and Technology, were officially accepted by a panel of experts. This project marks a major breakthrough in China’s energy sector, not only because it represents the first successful integration of coal, electricity, and chemical production in a single system, but also because it opens up new possibilities for the future development of the coal chemical industry.
The integration of coal and electricity—known as Integrated Gasification Combined Cycle (IGCC)—is a clean energy technology that has gained global recognition. While IGCC has been commercialized in many countries, China only recently launched its first industrial-scale experimental unit at the Yantai Power Plant in April of this year. Currently, China still faces challenges in individual technologies such as coal gasification and syngas combustion. In contrast, chemical companies often focus on combined heat and power systems, where power generation is secondary and the technology is well-established. The polygeneration system developed by Yankuang Group, however, creates a seamless integration between IGCC and chemical production.
This innovative system uses coal as a raw material, converting it into synthesis gas rich in carbon monoxide and hydrogen. Impurities like sulfur are removed, and the clean gas is then used for power generation through combined cycle technology and as a feedstock for chemical products. Not only is this the first such system in China, but it also stands as a global first. Its development concept is both unique and forward-thinking.
Rather than focusing solely on individual technologies or local optimization, the system emphasizes overall efficiency and synergy. It combines coal gasification, combined cycle power generation, combustion, pollution control, and chemical product deployment technologies. This approach supports research in multiple fields, particularly in hydrogen energy and COâ‚‚ reduction strategies.
One of the key advantages of the polygeneration system is its ability to address the inefficiencies of traditional clean coal technologies. By adopting a global optimization strategy under local constraints, it offers a promising path for future energy development. For instance, the power generation efficiency of IGCC can reach 42% to 45% (based on lower heating value), with potential to exceed 60% in the future. This makes it highly appealing for Chinese thermal power plants aiming to improve efficiency.
Additionally, the system supports large-scale gas-fired power units, reaching capacities of 300–400 MW, which aligns well with China’s growing demand for high-capacity power generation. It also provides an effective solution for pollution control, especially for high-sulfur coal, helping meet strict environmental standards while reducing CO₂ emissions.
Perhaps most importantly, the coal gasification polygeneration system optimizes energy utilization and material balance across the entire process. It allows flexible adjustments in product quantity and type based on market demands. For example, syngas can be used to produce methanol, while purge gases and excess feedstocks can be redirected for power generation and steam supply. The system can also adjust power output based on fluctuations in methanol prices or grid demand.
With growing interest from domestic coal and chemical companies, especially in the development of coal-to-liquid fuels, the coal gasification polygeneration system is emerging as a key player in China’s sustainable energy landscape. It represents one of the most efficient and environmentally friendly ways to utilize coal, making it a vital component of the country’s long-term energy strategy.
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