SCI和EI收录∣中国化工学会会刊

中国化学工程学报 ›› 2022, Vol. 50 ›› Issue (10): 435-443.DOI: 10.1016/j.cjche.2022.07.028

• Energy Science and Technology • 上一篇    

Enhance hydrates formation with stainless steel fiber for high capacity methane storage

Zhixia Deng1,2, Shuanshi Fan1,2,3,4, Yanhong Wang1,2,4, Xuemei Lang1,2,3, Gang Li1,2   

  1. 1 School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China;
    2 Guangdong Engineering Technology Research Center of Advanced Insulating Coating, Zhuhai 519175, China;
    3 Institute of Modern Industrial Innovation, South China University of Technology, Zhuhai 519175, China;
    4 Key Laboratory of Fuel Cell Technology of Guangdong Province, Guangzhou 510640, China
  • 收稿日期:2022-03-15 修回日期:2022-07-26 出版日期:2022-10-28 发布日期:2023-01-04
  • 通讯作者: Shuanshi Fan,E-mail:ssfan@scut.edu.cn
  • 基金资助:
    We are thankful to the National Natural Science Foundation of China (21736005 and 51876069), Special project for marine economy development of Guangdong (six marine industries) (GDNRC[2022]46), Key Research & Development Program of Guangzhou City (No. 202206050002, 202206050001).

Enhance hydrates formation with stainless steel fiber for high capacity methane storage

Zhixia Deng1,2, Shuanshi Fan1,2,3,4, Yanhong Wang1,2,4, Xuemei Lang1,2,3, Gang Li1,2   

  1. 1 School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China;
    2 Guangdong Engineering Technology Research Center of Advanced Insulating Coating, Zhuhai 519175, China;
    3 Institute of Modern Industrial Innovation, South China University of Technology, Zhuhai 519175, China;
    4 Key Laboratory of Fuel Cell Technology of Guangdong Province, Guangzhou 510640, China
  • Received:2022-03-15 Revised:2022-07-26 Online:2022-10-28 Published:2023-01-04
  • Contact: Shuanshi Fan,E-mail:ssfan@scut.edu.cn
  • Supported by:
    We are thankful to the National Natural Science Foundation of China (21736005 and 51876069), Special project for marine economy development of Guangdong (six marine industries) (GDNRC[2022]46), Key Research & Development Program of Guangzhou City (No. 202206050002, 202206050001).

摘要: In order to realize efficient gas storage of hydrate, stainless steel fiber (SSF) was added to 0.03% (mass) sodium dodecyl sulfate (SDS) solution for gas storage experiment. SSF can not only improve the problem that hydration heat cannot be removed effectively in the hydration process, but also improve gas storage speed and gas storage by increasing hydrate nucleation sites. Under the experimental conditions (273.2 K, 5-9 MPa), the peaks of temperature rise in SDS + SSF systems were found to become much smaller than those in SDS systems. The maximum gas storage rate and the maximum methane uptake of SSF + SDS system reached 9.89-24.90 cm3·g-1·min-1 and 178.65-200.89 cm3·(g H2O)-1, respectively. Compared with the surfactant SDS solution without SSF, they increased by 10.47%-33.22% and 9.16%-25.36%, respectively. The effect of SSF length on gas storage performance was studied. Due to the continuous thermal conduction network, longer SSF showed a higher gas storage capacity and methane uptake rate compared with shorter SSF. At the same time, compared with other metal fillers, SSF + SDS not only had excellent gas storage performance, but also the amount of SSF (0.1 g·ml-1) was only 7.6% of foamed aluminum, and the volume gas storage density was increased by 145.4%. The use of stainless steel fiber made the best use of the thermal conductivity of metal, reduced the amount of metal used, and improved the volume density and mass density of gas storage.

关键词: Methane, Stainless steel fiber, Gas storage capacity, Hydrate, Gas storage rate, Heat transfer

Abstract: In order to realize efficient gas storage of hydrate, stainless steel fiber (SSF) was added to 0.03% (mass) sodium dodecyl sulfate (SDS) solution for gas storage experiment. SSF can not only improve the problem that hydration heat cannot be removed effectively in the hydration process, but also improve gas storage speed and gas storage by increasing hydrate nucleation sites. Under the experimental conditions (273.2 K, 5-9 MPa), the peaks of temperature rise in SDS + SSF systems were found to become much smaller than those in SDS systems. The maximum gas storage rate and the maximum methane uptake of SSF + SDS system reached 9.89-24.90 cm3·g-1·min-1 and 178.65-200.89 cm3·(g H2O)-1, respectively. Compared with the surfactant SDS solution without SSF, they increased by 10.47%-33.22% and 9.16%-25.36%, respectively. The effect of SSF length on gas storage performance was studied. Due to the continuous thermal conduction network, longer SSF showed a higher gas storage capacity and methane uptake rate compared with shorter SSF. At the same time, compared with other metal fillers, SSF + SDS not only had excellent gas storage performance, but also the amount of SSF (0.1 g·ml-1) was only 7.6% of foamed aluminum, and the volume gas storage density was increased by 145.4%. The use of stainless steel fiber made the best use of the thermal conductivity of metal, reduced the amount of metal used, and improved the volume density and mass density of gas storage.

Key words: Methane, Stainless steel fiber, Gas storage capacity, Hydrate, Gas storage rate, Heat transfer