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丹麦技术大学开发将热解与加氢结合制取生物燃料的技术

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石油炼制与化工 2018年第8期49卷 55-55页

作者：邓京波(摘译) 不详

丹麦技术大学(DTU)的研究人员将热解与催化加氢结合在一个步骤中,称为催化加氢热解。该反应是将固体生物质进料到反应器中,同时使催化剂在反应器中持续地运动。将氢气送入反应器的底部,它可提升部分生物质使其四处移动。这使得生物油中... 详细信息

丹麦技术大学(DTU)的研究人员将热解与催化加氢结合在一个步骤中,称为催化加氢热解。该反应是将固体生物质进料到反应器中,同时使催化剂在反应器中持续地运动。将氢气送入反应器的底部,它可提升部分生物质使其四处移动。这使得生物油中反应性最强的分子一旦形成就会立刻与氢气发生反应。这样就可以防止分子达到能够形成焦炭的状态,从而可以避免催化剂失活,并且可以除去生物油中约95%的氧。剩下的反应性不强的分子(约5%)可以通过将生物油送入含有固定催化剂的传统反应器来除去。

关键词：加氢热解氢结合技术生物燃料大学丹麦催化剂失活固体生物质

Single-molecule devices reveal step-by-step dynamics of hydrogen bonds

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Science China Chemistry 2018年第6期61卷 639-640页

作者： Lifa Ni Dong Xiang Takhee Lee Tianjin Key Laboratory of Optoelectronic Sensor and Sensing Network Technology College of Electronic Information and Optical Engineering Nankai University Department of Physics and Astronomy Seoul National University

Intermolecular interactions,including hydrogen bonding,hydrophobic interactions,halogen bonding etc.,are ubiquitous in nature,which play key roles in the basic chemical,physical and biochemical process of *** them,hydrogen bonds are particularly attractive because they dominate many important structures and functions in nature from elegant base-pair interactions in DNAs to sophisticated protein folding and are regarded as an important element in the discovery of new *** better elucidate fundamental mechanisms,

关键词：氢结合单个分子动力学设备相互作用生物化学分子间 DNA

Saccharide Recognition by Oligo(meta-ethynylpyridine)s in Protic Media

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复旦学报（自然科学版） 2005年第5期44卷 734-735页

作者： Masahiko Inouye Faculty of Pharmaceutical Sciences Toyama Medical and Pharmaceutical University Toyama 930-0194 Japan

Previously, we have reported tris(ethynylpyridine) macrocycles as synthetic receptors for ribofuranosides, deoxyribofuranosides, and glucopyranosides[1]. The hydrogen-bonding skeletons of the macrocycles consisted of "meta"-tethered ethynylpyridine trimers. If the ethynylpyridine unit is polymerized, the resulting oligo- and poly(meta-ethynylpyridine) s would adopt unfolded, somewhat zigzag conformations because each pyridine nitrogen is mainly located on opposite sides of the ethynediyl bonds to cancel the dipoles. When the polymer meets with a saccharide, its pseudolinear conformation may be guided to a well-ordered helical structure in order that the nitrogen atoms of the pyridine rings inwardly interact with peripheral saccharide-OH groups in a manner similar to those of the macrocycles (Fig. 1). Thus, the chirality of saccharides added can be transferred to the helical sense of the polymer, depending on the stereochemistry of the saccharides.

关键词：糖类分子识别氢结合多糖大环缩合物

New Strategies for Constructing Polymeric Micelles and Hollow Spheres Via Self-Assembly

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复旦学报（自然科学版） 2005年第5期44卷 621-622页

作者： Ming Jiang Macromolecular Science Department and Key Laboratory of Molecular Engineering of Polymers Fudan University Shanghai 200433 China

In recent years, self-assembly of block copolymers leading to micelles in selective solvents, which dissolve only one of the blocks, has developed rapidly because the micelles are very strong candidates for potential applications in advanced technologies. The micelles usually have core-shell structure which are connected by covalent bonds. Based on our long-term research on interpolymer complexation due to hydrogen bonding, where we noticed that the complexation often led to the formation of irregular aggregates, we succeeded recently in developing a series of new approaches to polymeric micelles and hollow spheres via specific intermolecular interactions. As in these approaches, a variety of polymers with interacting groups i.e. homopolymers, random copolymers, graft copolymers as well as low mass compounds (LMC), can be used as building blocks, our research strategies have substantially extended the field of self-assembly.

关键词：聚合体材料凹球形自集合氢结合

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健康甜食——益寿糖(ISOMALT)

中外食品 2005年第6期 60-60页

作者：欣溪

益寿糖(ISOMALT)是一种糖醇,也就是所谓的双元糖醇或多羟基化合物.它是蔗糖(甜菜糖)经两步工序提取的.第一步,将糖分子重新排列成稳定的异麦芽糖分子(6-0-?-D-glucopyranosyl-fructose).第二步,异麦芽糖分子被催化使其与氢结合生成异麦... 详细信息

益寿糖(ISOMALT)是一种糖醇,也就是所谓的双元糖醇或多羟基化合物.它是蔗糖(甜菜糖)经两步工序提取的.第一步,将糖分子重新排列成稳定的异麦芽糖分子(6-0-?-D-glucopyranosyl-fructose).第二步,异麦芽糖分子被催化使其与氢结合生成异麦芽糖.

关键词：益寿糖甜食健康多羟基化合物糖分子异麦芽糖甜菜糖氢结合糖醇蔗糖