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Demetallization of bitumen using supercritical carbon dioxide and water

使用超临界二氧化碳和水进行沥青脱金属

基本信息

批准号：
515727-2017
负责人：
Siddique, Tariq
金额：
$ 1.82万
依托单位：
University of Alberta
依托单位国家：
加拿大
项目类别：
Engage Grants Program
财政年份：
2017
资助国家：
加拿大
起止时间：
2017-01-01 至 2018-12-31
项目状态：
已结题

来源：
https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=640732
关键词：
Demetallization bitumen using supercritical carbon

项目摘要

Extracted bitumen from oil sands ore is processed and upgraded to produce synthetic crude oil. Duringprocessing of bitumen, the presence of higher concentration of metals particularly V and Ni in bitumencorrodes equipment, clogs catalyst pores, deactivates catalyst and causes metal-laden emissions to theenvironment. Therefore, demetallization of bitumen is an important step in improving bitumen processing forsustainable synthetic crude oil production with less environmental impact.Currently, natural gas is used to produce steam for steam-assisted gravity drainage process to recover deeplyburied bitumen. In the newly proposed process, natural gas will be used in fuel cell to produce electricity. Theprocess will simultaneously yield pure CO2 and water streams that can easily be brought to a supercritical stateby using heat exchanger. In our laboratory studies, these streams have shown excellent results in the bitumenupgrading process. This proposed study aims to investigate demetallization of bitumen during its upgradingusing supercritical CO2 and water. The research findings will help devise better bitumen upgrading process forquality product, eliminate/reduce adverse environmental and operational effects, and contribute significantly toMillar Western's efforts to commercialize the application of supercritical CO2 and water for sustainablerecovery and utilization of energy resources.

从油砂矿石中提取的沥青经过加工和升级生产合成原油。在沥青的加工过程中，沥青中高浓度的金属，特别是V和Ni，会腐蚀设备，堵塞催化剂孔隙，使催化剂失活，并导致含金属物质排放到环境中。因此，沥青脱金属是改善沥青加工工艺，实现可持续、低环境影响合成原油生产的重要步骤。目前，利用天然气产生蒸汽，采用蒸汽辅助重力排水法回收深埋沥青。在新提出的工艺中，天然气将用于燃料电池发电。该过程将同时产生纯二氧化碳和水流，可以很容易地通过使用热交换器达到超临界状态。在我们的实验室研究中，这些流在沥青升级过程中表现出优异的效果。本研究旨在探讨超临界CO2和水对沥青提质过程中的脱金属作用。研究结果将有助于设计更好的沥青升级工艺，以获得优质产品，消除/减少对环境和操作的不利影响，并为millar Western将超临界二氧化碳和水的应用商业化以实现能源的可持续回收和利用做出重大贡献。