Abstract
As the global community commits to achieving net-zero carbon emissions, innovative strategies such as Direct Air Capture (DAC) are gaining prominence. DAC, a key carbon dioxide removal (CDR) technology, is energy intensive and requires large amounts of heat and electricity. To ensure net negative emissions from DAC are achieved and to maximize CDR potential, it is important to ensure that low carbon sources of heat, such as geothermal and waste heat energy as well as renewable electricity are utilized to the extent possible. This article explores the techno-economics of harnessing waste heat from the refining and petrochemical sectors in the Kingdom of Saudi Arabia (KSA) to power DAC, contributing to negative emissions and allowing for carbon offsetting on sites.
