公开(公告)号：US20240228880A1

公开(公告)日：2024-07-11

申请号：US18322766

申请日：2023-05-24

Applicant: CHINA UNIVERSITY OF PETROLEUM—BEIJING

Inventor： Qichao LV ,  Tongke ZHOU ,  Zhengen GAO ,  Abdolhossein HEMMATI-SARAPARDEH ,  Zilong LIU ,  Hossein JALALIFAR ,  Rong ZHENG ,  Longxuan LI ,  Zhaoxia DONG

IPC: C09K23/16

CPC classification number: C09K23/16

Abstract: An aqueous carbon dioxide foam stabilized by organic Janus nanosheets, a preparation method and application thereof. The preparation method can be provided as: S1: subjecting molecules with hydrophobic tail to spontaneous and ordered arrangement in a mixture of ethanol and water; S2: adding molecules with hydrophilic head to the solution of S1, and adjusting a pH value to 6.0-6.5 to perform a synthesis of organic Janus nanosheet monomers; S3: adding ethanol to the solution of S2, and adjusting the pH value to 6.0-6.5 to perform a heating reflux; then adjusting the pH value to 7.0-8.0, and adding sodium ethylate, adjusting a temperature to 70-85° C. to perform a reaction under an inert atmosphere, and then adjusting the pH to 8.0-9.0, and stirring to be completely dissolved. The aqueous CO2 foam is prepared from CO2 and a liquid phase.

公开(公告)号：US20240228720A1

公开(公告)日：2024-07-11

申请号：US18316483

申请日：2023-05-12

Applicant: CHINA UNIVERSITY OF PETROLEUM—BEIJING

Inventor： Qichao LV ,  Tongke ZHOU ,  Abdolhossein HEMMATI-SARAPARDEH ,  Zilong LIU ,  Hossein JALALIFAR ,  Junjian LI ,  Rong ZHENG ,  Longxuan LI ,  Zhaoxia DONG

IPC: C08J9/12 ,  B65G5/00

CPC classification number: C08J9/122 ,  B65G5/00 ,  C08J2301/02

Abstract: Environment-friendly reinforced foam for underground hydrogen storage and a preparation method thereof. The reinforced foam includes hydrogen and a liquid phase, where the liquid phase is an aqueous solution of a foaming agent, a foam stabilizer, a pH regulator and a particle cosolvent; and the foam stabilizer is a compounded system composed of 0-dimensional nanomaterial and 1-dimensional nanomaterial at a mass ratio of 2-5:1. In the reinforced foam of the present disclosure, the 0-dimensional and the 1-dimensional nanomaterials are compounded to form a nano-armor layer, which improves the stability of foam and the interfacial viscoelasticity of a liquid film by synergistic reinforcement, and inhibits the viscous fingering, escape and leakage of hydrogen in a reservoir, thereby not only being beneficial to improving the mobility of hydrogen, but also increasing the safety of hydrogen underground storage.