论文部分内容阅读
化石资源的不可再生性及其大量使用所造成的环境污染问题,使得发展可再生能源成为必然。纤维素作为自然界中最丰富的生物质资源,其催化转化制能源化学品是学术界的研究热点。本文介绍了我们关于纤维素高选择性一步转化制乙二醇新反应途径的研究。该工作以廉价的碳化钨,特别是镍促进的碳化钨为催化剂,在一定的反应温度和水相氢气氛条件下,成功实现纤维素转化率100%,乙二醇收率高达61%。乙二醇是重要的大宗能源化学品,工业生产高度依赖于石油乙烯资源。纤维素催化转化制乙二醇新反应途径的发现,开辟了一条新的利用可再生资源进行“生物炼制”的绿色路线,具有重要的学术意义和现实意义。
The non-renewable nature of fossil resources and the environmental pollution caused by its extensive use make the development of renewable energy inevitable. Cellulose, as the most abundant biomass resource in nature, has been the hotspot in the academic field for its catalytic conversion to energy and chemicals. This article describes our research on the new, highly selective, one-step conversion of cellulose to ethylene glycol. In this work, low-cost tungsten carbide, especially nickel-promoted tungsten carbide, was used as a catalyst to achieve a cellulose conversion of 100% and a yield of ethylene glycol up to 61% under a certain reaction temperature and an aqueous hydrogen atmosphere. Ethylene glycol is an important bulk of energy chemicals and industrial production is highly dependent on petroleum ethylene resources. The discovery of a new reaction pathway for the conversion of cellulose to ethylene glycol has opened up a new green route that utilizes renewable resources for biorefinery, which is of great academic and practical significance.