| abstract |
An adsorbent for an adsorption heat pump that can adsorb and desorb an adsorbate in a relatively low relative vapor pressure range, and can be driven even when the heat source temperature on the low temperature side is 45 ° C. and the heat source temperature on the high temperature side is 60 ° C. or less, and An efficient adsorption heat pump using the adsorbent is provided. An adsorbent for an adsorption heat pump is made of zeolite containing aluminum, phosphorus and iron in a skeleton structure. Framework density, 16.0T / 1,000Å is greater than and 19.0T / 1,000Å 3 or less than 3, and, when the water vapor adsorption temperature (Ta) and 25 to 45 ° C., the desorption temperature of the steam (Td) and the cold heat generation temperature (Tcool) satisfy the following formulas (1) and (2), and the difference between the water vapor adsorption amount at the adsorption temperature (Ta) and the water vapor adsorption amount at the desorption temperature (Td) is 0. 1 g / g or more. [Expression 1] [Selection figure] None |