摘要
储气量是影响天然气储运技术应用中的关键因素。分别测定了甲烷 /水和甲烷 /(水 +活性炭 )两种体系中甲烷水合物的储气量。结果表明 ,在甲烷 /水体系中 ,2 74 6K时水合物储气量只能达到最大理论值的 2 0 %～30 %。这是由于水和甲烷未能充分接触所致 ;在甲烷 /(水 +活性炭 )体系中 ,5 .7～ 9.5MPa和 2 75 .8～ 2 80 .0K时 ,一些水合物储气量的实验值已接近最大理论值 ,这是由于活性炭能为水和甲烷提供优异的接触条件。适当的水炭比和初始压力 (<8MPa)
Gas storage capacity, rapidly large scale production and controllable dissociation of hydrate are the key factors for commercialization of storage and transport technique of natural gas hydrate. In this work, gas storage capacity of methane hydrate in methane / water system and methane / (water + active carbon) system was investigated. For the methane/water system, methane gas storage capacity in hydrates about 20%～30% of its theoretical maximum value was achieved at the pressure range of 4.6～9.0 MPa and a constant temperature of 274.6 K. The result was quite unsatisfactory for actual use. The remaining free water was probably the main reason for the less storage because of insufficient gas/water contact. For methane/(water + active carbon) system, methane gas storage capacity in hydrates was quite close to theoretical maximum value at the pressure range of 5.7～9.5 MPa and the temperature range of 275.8～280.0 K for some runs. Suitable ratio of water/active carbon and initial pressure (<8MPa)were the main factors to enhance the gas storage capacity of hydrate formation.
出处
《石油学报（石油加工）》
EI
CAS
CSCD
北大核心
2002年第2期1-5,共5页
Acta Petrolei Sinica(Petroleum Processing Section)
基金
中国石油天然气总公司石油科技中青年创新基金 (CX1998 2 9)
国家自然科学基金资助项目 (2 0 1760 2 8)
