An Alternative Sulfur Removal Approach for Modern Refining
As global environmental standards continue to evolve, refineries are increasingly expected to lower carbon intensity while maintaining operational efficiency. Traditional hydroprocessing methods, while effective, are energy-intensive and often associated with high costs and emissions. An alternative sulfur treatment technology provides a lower-emission option for meeting these evolving needs.
Limitations of Legacy Hydroprocessing Units
Many refineries rely on aging hydroprocessing units that demand significant energy and hydrogen input. The rising stringency of sulfur content regulations in fuels, combined with sustainability expectations under ESG (Environmental, Social, and Governance) frameworks, has led operators to consider more efficient and environmentally responsible treatment options. The alternative process discussed here offers a method to remove sulfur with significantly reduced greenhouse gas emissions and capital requirements.
Integration Options Within Refining Operations
This desulfurization technology can be integrated into multiple points across the refinery:
- Pre-treatment for heavy crudes: Positioned as a front-end bolt-on to existing systems, it enables processing of heavier crude slates while reducing the burden on core refining units.
- Post-tower treatment: When located after atmospheric or vacuum distillation towers, it assists in lowering the process intensity of downstream units.
- Heavy fuel applications: Applied to products such as marine fuels and fuel oils, the method supports treatment with reduced hydrogen usage and lower emissions.
These deployment strategies allow for increased flexibility and optimization of existing plant infrastructure.
Efficiency in Hydrogen and Emission Reduction
Compared to hydroprocessing, the alternative technology operates with lower temperature requirements and significantly less hydrogen consumption. This leads to a more efficient use of hydrogen supply, which is often limited or expensive in many refining contexts.
Alignment With Environmental and Economic Objectives
By utilizing conventional reactor designs and requiring minimal utilities, this method offers an efficient route to sulfur reduction without the need for entirely new infrastructure. It supports refinery goals to treat heavier feedstocks while improving overall environmental performance and cost-effectiveness.