Journal of Petrochemical Universities
  Journals
  Publication Years
  Keywords
Search within results Open Search
Please wait a minute...
For Selected: Toggle Thumbnails
Kinetic Characteristics of Metal Supported Graphene Oxide on CO 2 Hydrate Formation
Sai YE, Weiwei JIAN, Shuai WANG, Zaiyuan ZHANG
Abstract138)   HTML6)    PDF (3366KB)(60)      

Aiming at the problems of slow generation rate,low storage capacity and harsh generation conditions of CO2 during the hydrate generation process,bimetallic Cu and Al?loaded graphene oxide materials were used as additives for the kinetic characterisation of CO2 hydrate generation.Firstly,the prepared GO?Cu?Al material was characterized by TEM,EDS,XPS,and stability analysis.Secondly,experiments were conducted on the kinetics of CO2 hydrate formation under 274.15 K and 3.0 MPa.The effects of different additive concentrations on the induction time,reaction time, gas consumption,and gas storage capacity of CO2 hydrate formation were analyzed,and a comparison was made between monometallic and bimetallic supported materials.The results show that bimetallic Cu and Al can be uniformly loaded onto graphene oxide with good stability.At 274.15 K,3.0 MPa,and a concentration of 50 μ g / g ,the induction time of CO2 hydrate is 85 min, the reaction time is 170 min, the gas consumption is 0.216 mol,and the gas storage capacity is 123.81 cm3/cm3.Compared with pure water system,the induction time and reaction time are shortened by about 1 / 4 and 1 / 7 respectively,and the gas consumption and storage capacity are correspondingly improved.Compared with the monometallic loading system,the maximum induction time is shortened by about 1 / 2 , the maximum reaction time is shortened by about 1 / 5 , and the gas storage capacity is significantly improved.

2024, 37 (1): 25-33. DOI: 10.12422/j.issn.1006-396X.2024.01.004