Title:
LIQUEFIED HYDROGEN TRANSPORTATION METHOD
Document Type and Number:
WIPO Patent Application WO/2017/010083
Kind Code:
A1
Abstract:
This liquefied hydrogen transportation method is provided with an air/nitrogen exchange step, a nitrogen/hydrogen exchange step, and a transportation step. The nitrogen/hydrogen exchange step includes: a pressurization operation in which hydrogen gas is supplied to a liquid feed pipe while the liquid feed pipe is in a state of being fluidly separated from a pneumatic feed pipe; a pressure equalization operation which is performed after the pressurization operation, and in which the liquid feed pipe and the pneumatic feed pipe are fluidly connected to equalize the gas pressure inside the liquid feed pipe and the gas pressure inside the pneumatic feed pipe; and a pressure reduction operation which is performed after the pressure equalization operation, and in which some of a mixed gas comprising nitrogen gas and hydrogen gas is discharged from the liquid feed pipe and the pneumatic feed pipe to the exterior. In the nitrogen/hydrogen exchange step, the aforementioned operations are repeatedly performed a plurality of times until the respective hydrogen gas concentrations in the liquid feed pipe and the pneumatic feed pipe are equal to or more than a preset value.
Inventors:
UNNO SHUNTARO
TAKASE TOMONORI
UMEMURA TOMOAKI
TAKASE TOMONORI
UMEMURA TOMOAKI
Application Number:
PCT/JP2016/003290
Publication Date:
January 19, 2017
Filing Date:
July 12, 2016
Export Citation:
Assignee:
KAWASAKI HEAVY IND LTD (JP)
International Classes:
F17C13/00
Foreign References:
| JP2013032839A | 2013-02-14 | |||
| JP2006057787A | 2006-03-02 | |||
| JP4313123B2 | 2009-08-12 |
Attorney, Agent or Firm:
PATENT CORPORATE BODY ARCO PATENT OFFICE (JP)
Download PDF:
Previous Patent: EMERGENCY DETACHMENT SYSTEM FOR LIQUEFIED HYDROGEN
Next Patent: NONWOVEN FABRIC COMPOSITE AND METHOD FOR MANUFACTURING SAME
Next Patent: NONWOVEN FABRIC COMPOSITE AND METHOD FOR MANUFACTURING SAME