期刊
JOURNAL OF CLEANER PRODUCTION
卷 334, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jclepro.2021.130268
关键词
Heavy oil; HCW; Upgrading; Heteroatoms; Renewable energy integration
资金
- Niroo Research Institute (NRI)
Energy is crucial for economic growth in all economies, especially emerging ones that are still dependent on fossil fuels such as heavy oil. However, the presence of heteroatoms in heavy oil leads to environmental pollution during combustion, thus requiring upgrading and fractionation within strict specifications. Hot compressed water (HCW) is emerging as a promising and environmentally friendly method to upgrade heavy oil, replacing traditional toxic solvents. The combination of HCW with renewable energy sources offers a cleaner carbon energy system with reduced energy consumption and lower carbon dioxide emission.
All economies need energy for growth, particularly emerging ones with continued demand for fossil fuels that move them to unconventional energy sources such as heavy oil. However, the presence of large quantities of heteroatoms-sulfur, nitrogen, oxygen, and metals - in heavy oil is a major contributor to environmental pollution during the combustion phase. This requires the crude and residue to be upgraded and fractionated within tight specifications. Hot compressed water (HCW), at or beyond the critical point (374 ?, 22.1 MPa), has emerged as a highly promising environmentally benign and efficient method for heavy oil upgrading to replace conventional toxic solvents. The synergistic effect of HCW with energy generated from renewable sources is a new avenue into a cleaner carbon energy system for fuel production with the benefits of reduced energy con-sumption and lower carbon dioxide emission. This paper provides a comprehensive review in multi-scale which underlines the recent evolution and the challenges in this field. In addition, the critical factors and emerging gaps influencing the heavy oil upgrading in HCW are appended. Eventually, a set of suggestions for integrating renewable energy technologies with heavy oil upgrading in HCW and future perspective has been reported.
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