AQUEOUS SOLUTION FOR CLATHRATE HYDRATE FORMATION, HEAT-STORAGE AGENT, PROCESS FOR PRODUCING CLATHRATE HYDRATE OR SLURRY THEREOF, METHOD OF STORING/RADIATING HEAT, AND PROCESS FOR PREPARING AQUEOUS SOLUTION FOR FORMING LATENT-HEAT-STORAGE AGENT OR MAJOR COMPONENT THEREOF
申请人:JFE Engineering Corporation
公开号:EP2210928A1
公开(公告)日:2010-07-28
A heat-storage agent which can store a large quantity of cold heat in the temperature range of 3-5°C, is highly effective in preventing supercooling, and can retain the supercooling-preventing effect even when hydrate solidification/melting is frequently repeated. Also provided are an aqueous solution which enables the formation of a clathrate hydrate serving as a major component of the heat-storage agent, and a process for producing the clathrate hydrate. The aqueous solution contains at least one of tetra-n-butylammonium bromide and tri-n-butyl-n-pentylammonium bromide as a solute and contains tetraisopentylammonium bromide as a supercooling inhibitor, the weight proportion of the tetraisopentylammonium bromide to the tetra-n-butylammonium bromide and/or tri-n-butyl-n-pentylammonium bromide being in a given range. This aqueous solution is cooled to or below a hydrate formation temperature to thereby produce a clathrate hydrate. The heat-storage agent contains this clathrate hydrate as a major component.
一种蓄热剂,它能在 3-5°C 的温度范围内储存大量冷热,在防止过冷方面非常有效,而且即使在水合物凝固/熔化频繁重复的情况下也能保持防止过冷的效果。此外,还提供了一种可形成作为蓄热剂主要成分的凝块水合物的水溶液,以及一种生产凝块水合物的工艺。该水溶液至少含有四正丁基溴化铵和三正丁基正戊基溴化铵中的一种作为溶质,并含有四异戊基溴化铵作为过冷抑制剂,四异戊基溴化铵与四正丁基溴化铵和/或三正丁基正戊基溴化铵的重量比例在给定范围内。将这种水溶液冷却到或低于水合物形成温度,从而产生一种凝块水合物。蓄热剂的主要成分就是这种水合物。