【Frontiers in HaiChuan Chemical Technology】China makes significant breakthroughs in the large-scale utilization of \"flammable ice\"

Thread Content

The official WeChat account of Hainan Province’s Department of Science and Technology announced that recently, the marine clean energy innovation team at Hainan University successfully overcame a long-standing global challenge, making a groundbreaking breakthrough in the field of direct catalytic conversion of methane. The new catalytic system developed by this team converts gaseous methane into the high-value liquid fuel methanol with nearly 100% perfect selectivity under mild conditions, providing a core technical solution with independent intellectual property rights for the on-site conversion and efficient utilization of the abundant natural gas hydrate resources in China’s South Sea. The relevant research findings were recently published in the international academic journal Nature Communications. Natural gas hydrates (flammable ice) represent a vast strategic energy resource stored in the South China Sea; their main component is methane. However, the molecular structure of methane is extremely stable, and traditional industrial methods of utilizing them involve aggressive processes that require high temperatures and pressures for extensive conversion. Therefore, achieving precise atomic-level control under mild conditions to directly and efficiently convert methane into methanol has always been a \"holy grail\" challenge in the field of catalytic chemistry worldwide. The Marine Clean Energy Innovation Team at Hainan University has ingeniously designed a nanoscale palladium (Pd) catalyst that, through precise modification of its crystal surfaces, is capable of accurately identifying and activating methane molecules. More importantly, it possesses a \"rapid release\" property for the target product, methanol: once the valuable methanol molecules are formed, the catalytic platform immediately releases them, preventing them from staying in the reaction environment for too long and being excessively oxidized. It is reported that this breakthrough technology features two innovations: first, according to the results of the final experiments, the selectivity for methanol reaches 99.7%, achieving a near-perfect conversion with virtually no losses ； Secondly, the entire process requires only a low temperature of 70°C, which means that industrial production in the future will be safer, more energy-efficient, and more environmentally friendly, offering great potential for commercial application and economic value.