Open AccessAn evaluation of key challenges of CO2 transportation with a novel Subsea Shuttle Tanker
Author(s) -
Yucong Ma,
Yihan Xing,
Tor Hemmingsen
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1201/1/012078
Subject(s) - subsea , marine engineering , pipeline transport , sizing , submarine pipeline , underwater , environmental science , petroleum engineering , key (lock) , synchronizing , engineering , computer science , geology , environmental engineering , oceanography , art , topology (electrical circuits) , geotechnical engineering , computer security , electrical engineering , visual arts
Recently, a novel Subsea Shuttle Tanker (SST) concept has been proposed to transport carbon dioxide (CO 2 ) from ports to offshore oil and gas fields for either permanent storage or enhanced oil recovery (EOR). SST is a large autonomous underwater vehicle that travels at a constant water depth away from waves. SST has some key advantages over subsea pipelines and tanker ships when employed at marginal fields. It enables carbon storage in marginal fields which do not have sufficient volumes to justify pipelines. Further, in contrast to ships, SST does not require the use of a permanently installed riser base. This paper will evaluate the key challenges of using such vessel for CO 2 transportation. It discusses the most important properties such as thermodynamic properties, purity, and hydrate formation of CO 2 at different vessel-transportation states in relation to cargo sizing, material selection, and energy consumption.