| 摘要 |
PROBLEM TO BE SOLVED: To lower a heat recovery temperature and raise a heat utilization characteristic in terms of the cost of a device and an operating cost or the like by recovering heat in accordance with a reaction represented by a specific expression and utilizing heat in accordance with a reaction represented by a specific expression which is reverse to the above described reaction. SOLUTION: A heat recovery is carried out by the decomposition reaction of methyl formate represented by 2CH3 OH→HCOOCH3 +H2 and heat is utilized in accordance with the composition reaction of methyl formate represented by HCOOCH3 +H2 -2CH3 OH which is a reverse reaction thereto. These reactions are carried out under the presence of a copper catalyst or a noble metal catalyst. Further, these reactions are carried out in a liquid phase and methanol, H2 gas and methyl formate are separated in accordance with a reaction distillation. Thus, industrial waste heat at a low temperature of, for example, not higher than 250 deg.C, which has been conventionally used as a heat source with difficulty and steam or hot water at a high temperature of, for example, not lower than 100 deg.C can be generated, so that it can be effectively used for various heat sources or cooling and heating in the places requiring heat of factories or cities. |
