使用不同的热岩材料对重型原油脱金属化进行研究
I M Othman1, Z F Ghattas1, S N Halim2
1Department of Environmental Studies, Institute of Graduate Studies and Research (IGSR), Alexandria University, Alexandria, Egypt.
Scientific reports
|June 20, 2025
概括
天然岩 (NZ) 有效地从埃及原油中去除,和等重金属,性能优于合成岩. 这种吸附脱金属化技术为炼油过程提供了可持续的解决方案.
科学领域:
- 环境科学与工程环境科学与工程
- 材料科学 材料科学 材料科学
- 石油化学 石油化学
背景情况:
- 全球越来越多地关注管理工业影响和炼油环境污染.
- 需要减少重型原油和精炼产品中微量重金属含量 (Cr,Ni,V,Zn).
- 来自贝莱姆沙漠 (BD) 油田的埃及重型原油带来了重大的金属污染挑战.
研究的目的:
- 研究吸附脱金属化技术,以从埃及重型原油中去除关键金属离子.
- 为了评估两个热带材料,自然热带 (NZ) 和合成热带 (SZ) 在金属离子去除方面的效率.
- 确定金属去除的最佳操作条件,包括接触时间,吸附剂度和初始金属离子度.
主要方法:
- 吸附脱金属化实验使用两种类型的热岩材料 (NZ和SZ).
- 调查操作参数:接触时间,吸附剂度和初始金属离子度 (原油量).
- 使用PXRD和EDX分析金属去除效率,以确认吸附和金属离子相互作用.
主要成果:
- 对新西兰的最佳条件:0.5克新西兰,50毫升原油,6小时的接触时间,达到75.6%的V,73.9%的Ni和81.8%的Cr去除.
- 对于SZ的最佳条件是:2克SZ,50毫升原油,Zn (70.5%) 和Cr (69.17%) 的接触时间为12小时;V (68.9%) 和Ni (68.9%) 的接触时间为26小时.
- 新西兰证明了比SZ更高的效率,特别是对于Ni和V的去除,选择性顺序为NZ的Cr>V>Ni>Zn和SZ的Cr>Zn>V>Ni.
结论:
- 天然岩 (NZ) 是一种比合成岩 (SZ) 更有效的吸附剂,可以从贝莱姆沙漠原油中去除目标金属离子.
- 这项研究成功地优化了吸附脱金属化的条件,突出了热石在重金属修复中的潜力.
- 新西兰对Cr,V和Ni具有强烈的亲和力,使其成为净化重型原油和减轻环境污染的有希望的材料.
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