权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

DIRECT SYNTHESIS OF ORGANIC COMPOUNDS FROM CARSON DIOXIDE BY HYDROTHERMAL PROCESS

水热法直接二氧化氯合成有机化合物

基本信息

批准号：
13555277
负责人：
YAMASAKI Nakamichi
金额：
$ 4.22万
依托单位：
TOHOKU UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2001
资助国家：
日本
起止时间：
2001 至 2002
项目状态：
已结题

项目摘要

Water and CO_2 were easily reduced by using metal Fe and Ni under hydrothermal conditions and to form hydrocarbons. The activated hydrogen from water and the activated CO_2 on metal surface reacted each other and to form hydrocarbons. We confirmed the basic principle of above reactions. The produced alkane groups (gaseous phase) under neutral hydrothermal conditions showed this reaction proceed according to a Fisher-Tropseh reaction via CO formation. On acidic conditions, many carboxylic acids were detected in solution phase. When the magnetite powder was used instead of metals, ethanol was detected in solution phase. In final year (2002), the bench scale flow system autoclave for industrial scale treatment were developed and confirmed the possibility in use the research of non-equilibrium reaction. The batch type autoclave can be used for equilibrium reaction and fitted in the ideal basic research, however this flow system autoclave can be used in the natural analogue experiment (simulator of water flow underground) and the tube digester research for the practical industrial scale treatment. This non-equilibrium reaction in a typical complex system and the non-traditional science. In here, the lathe scrap of metallic iron was set in this tube reactor and the mixed flow of HCl solution and CO_2 gas were introduced in this heating tabs and the outlet sample from tube reactor was collect and determined the carboxylic compounds. In systematic research planning, firstly, the activated hydrogen and CO_2 are formed, and hydrocarbons were synthesized at second stage, and at next stage we discovered the selective formation of organic compounds by the control of hydrothermal conditions and at the last stage we could showed the possibility of large scale treatment by using this flow system autoclave.

在水热条件下，利用金属铁和镍可以很容易地还原水和CO_2，生成碳氢化合物。水中的活性氢与金属表面的活性CO_2相互反应生成碳氢化合物。我们证实了上述反应的基本原理。在中性水热条件下生成的烷烃（气相）表明该反应是通过CO生成的Fisher-Tropseh反应进行的。在酸性条件下，许多羧酸在溶液中被检测到。当磁铁矿粉代替金属时，在溶液中检测乙醇。最后一年（2002年），开发了用于工业规模处理的实验规模流动系统高压灭菌器，并证实了在非平衡反应研究中使用的可能性。间歇式高压灭菌器可用于平衡反应，适用于理想的基础研究，而流式系统高压灭菌器可用于自然模拟实验（地下水流模拟器）和实际工业规模处理的管式消化器研究。这种非平衡反应是典型的复杂系统和非传统科学中的一种。在该管式反应器中设置了金属铁的车床废铁，并在该加热装置中引入了HCl溶液和CO_2气体的混合流动，收集了管式反应器出口样品并测定了羧基化合物。在系统的研究规划中，首先形成活化氢和CO_2，然后在第二阶段合成碳氢化合物，然后在第二阶段通过热液条件的控制发现有机化合物的选择性形成，最后在最后阶段表明利用该流动系统高压釜进行大规模处理的可能性。