Exploring Tradeoffs in Merged Pipeline Infrastructure for Carbon Dioxide Integration Networks

Sabla Y. Alnouri and Dhabia M. Al-Mohannadi
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Sabla Y. Alnouri: The Baha and Walid Bassatne Department of Chemical Engineering and Advanced Energy, American University of Beirut, Beirut 11-0236, Lebanon
Dhabia M. Al-Mohannadi: Department of Chemical Engineering, Texas A&M University at Qatar, Doha 23874, Qatar

Sustainability, 2020, vol. 12, issue 7, 1-14

Abstract: Carbon integration aims to identify appropriate CO 2 capture, allocation, and utilization options, given a number of emission sources and sinks. Numerous CO 2 -using processes capture and convert emitted CO 2 streams into more useful forms. The transportation of captured CO 2 , which poses a major design challenge, especially across short distances. This paper investigates new CO 2 transportation design aspects by introducing pipeline merging techniques into carbon integration network design. For this, several tradeoffs, mainly between compression and pipeline costs, for merged pipeline infrastructure scenarios have been studied. A modified model is introduced and applied in this work. It is found that savings on pipeline costs are greatly affected by compression/pumping levels. A case study using two different pipe merging techniques was applied and tested. Backward branching was reported to yield more cost savings in the resulting carbon network infrastructure. Moreover, both the source and sink pressures were found to greatly impact the overall cost of the carbon integration network attained via merged infrastructure. It was found that compression costs consistently decreased with increasing source pressure, unlike the pumping and pipeline costs.

Keywords: carbon dioxide; transportation; pipeline; merging; CCUS (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2020
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