Recently, researchers at the Xishuangbanna Tropical Botanical Garden of the Chinese Academy of Sciences successfully used hydrothermal methods to convert glycerol, a byproduct, into high value-added products such as acrolein, acrylic acid, lactic acid, and hydrogen. According to reports, glycerol, a major by-product of biodiesel, produces approximately 0.1 kg of glycerol per kilogram of biodiesel produced. With the rapid development of global biodiesel industrialization, the development of high value-added chemical products and biofuels, which are by-product glycerol, has become an inevitable trend. Physician Long Yunduo of the Botanic Garden discovered under the guidance of his mentor Fang Zheng that, under acid-catalyzed conditions, dehydration of glycerin in hot water or supercritical water can produce an important chemical product acrolein, and the use of acrolein oxidation can prepare market demand. Bigger and higher added acrylic. At the same time, in the presence of alkaline catalysts, glycerol can also form lactic acid through a series of hydrothermal reactions, which are widely used in the pharmaceutical, food, leather and textile industries. Polylactic acid polymerized from lactic acid can be used to make new biodegradable plastics. “Traditional biotransformation methods have the disadvantages of long period, difficult reaction control, and low production efficiency. In contrast, hydrothermal method is a promising method of thermochemical conversion and is subject to the field of biomass thermochemistry and energy. A lot of attention and research." Long Yun said.
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