| 摘要 |
PROBLEM TO BE SOLVED: To solve the problems with conventional methane hydrate sampling methods such as a decompression method and a heating method, especially with the heating method that requires fuel and energy for heating water and is poor in terms of cost and energy efficiency.SOLUTION: Energy and costs used for heating water are reduced significantly by inducing exothermic reaction by mixing calcium oxide with water or seawater. A special tube is used for recovering gas, thereby preventing mixing of sediment and facilitating transfer after installation. The method also contributes toward inhibition of global warming and marine acidification with CO2-adsorbing property and alkali nature of calcium oxide, as calcium oxide slurry after thermal reaction is discharged into seawater.SELECTED DRAWING: Figure 1 |
