Carbon integration aims to identify appropriate CO2 capture, allocation, and utilization options, given a number of emission sources and sinks. Numerous CO2-using processes capture and convert emitted CO2 streams into more useful forms. The transportation of captured CO2, which poses a major design challenge, especially across short distances. This paper investigates new CO2 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.

中文翻译：

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探索二氧化碳集成网络合并管道基础设施的权衡

考虑到许多排放源和汇，碳整合旨在确定适当的 CO2 捕获、分配和利用选项。许多使用二氧化碳的过程捕获排放的二氧化碳流并将其转化为更有用的形式。捕获的 CO2 的运输是一项重大的设计挑战，尤其是短距离运输。本文通过将管道合并技术引入碳整合网络设计来研究新的 CO2 运输设计方面。为此，已经研究了合并管道基础设施方案的几个权衡，主要是压缩和管道成本之间的权衡。在这项工作中引入并应用了一个修改后的模型。发现管道成本的节省很大程度上受压缩/泵送水平的影响。应用并测试了使用两种不同管道合并技术的案例研究。据报道，向后分支可以在由此产生的碳网络基础设施中节省更多成本。此外，发现源压力和汇压力都会极大地影响通过合并基础设施实现的碳整合网络的总体成本。发现压缩成本随着源压力的增加而持续降低，这与泵送和管道成本不同。