摘要
提出了以水合物法储运乙烯,选用阴离子表面活性剂十二烷基硫酸钠(SDS)作为乙烯水合物的生成促进剂进行实验研究,考察了SDS对乙烯水合物生成的促进作用以及乙烯水合物在低温下的热稳定性。结果表明:SDS对乙烯水合物的生成速率和储气密度都有较大提高,对其促进原因进行了初步分析;实验测定乙烯水合物在263～269K的分解平衡压力范围是0.244～0.460MPa,在263～271K进行常压分解时,其分解率随温度升高而升高,在温度低于267K时,乙烯水合物的平衡分解率将降到23.7％以下,其中263K的分解率为5.6％。
In this work, an innovative idea for storing ethylene in the form of hydrate was proposed. The effect of the anion surfactant-sodium dodecyl sulfate (SDS) was experimentally studied. The results indicated that SDS can increase ethylene hydrate formation rates and storage density dramatically. The primary mechanism of the promotion was analyzed; we also studied the decomposition characteristics of the ethylene hydrate. At the temperature ranges from 263 up to 269K, the corresponding equilibrium pressures is 0.244 to 0.460 MPa. When the hydrate decomposed at normal pressure in the temperatureranges from 267 up to 271K, the decomposing rate increased with the higher of the temperature. When temperature below to 267K, the decomposing rate was lower to 23.7%, at 263K, the decomposing rate is 5.6％.
出处
《化工学报》
EI
CAS
CSCD
北大核心
2003年第z1期18-22,共5页
CIESC Journal
