Shenyang: Chinese researchers have developed a new catalytic method that reduces energy use while improving efficiency in the production of light olefins, a key component in the chemical and manufacturing industries.
The study, led by scientists at the Dalian Institute of Chemical Physics under the Chinese Academy of Sciences, introduces a new approach to converting syngas into light olefins under milder conditions, potentially lowering costs and energy requirements.
Syngas, a mixture of carbon monoxide and hydrogen, is widely used in fuel and chemical production through the Fischer-Tropsch process. However, conventional methods typically require high temperatures above 300°C and high pressure, resulting in significant energy consumption.
Improved efficiency under milder conditions
The research team developed a catalytic system that incorporates hydroxy promoters into a sodium-cobalt-manganese structure. This approach helps control the reaction process and reduces unwanted by-products.
Under conditions of 250–260°C and lower pressure, the system achieved around 80 percent carbon monoxide conversion and about 60 percent selectivity for light olefins, with overall olefin selectivity exceeding 80 percent.
Addressing key industrial challenge
Researchers noted that traditional processes often face a trade-off between conversion efficiency and product selectivity, where desired outputs can be converted into less useful compounds.
The new method helps maintain balance by limiting over-conversion, improving both efficiency and output quality.
Potential for industrial application
The findings, published in Nature, provide new insights into syngas conversion and catalyst design, with potential applications in cleaner and more efficient chemical production.
The research team said further work will focus on refining catalyst design and optimising reaction processes to support low-carbon industrial development.
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