Invention Grant
US09562198B2 Demulsification and extraction of biochemicals from crude and its fractions using water and subcritical/supercritical carbon dioxide as proton pump with pH tuning without precipitating oil components
有权
使用水和亚临界/超临界二氧化碳作为质子泵从原油及其馏分中破乳和提取生物化学品，并进行pH调节，而不会沉淀出油组分
- Patent Title: Demulsification and extraction of biochemicals from crude and its fractions using water and subcritical/supercritical carbon dioxide as proton pump with pH tuning without precipitating oil components
- Patent Title (中): 使用水和亚临界/超临界二氧化碳作为质子泵从原油及其馏分中破乳和提取生物化学品，并进行pH调节，而不会沉淀出油组分
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Application No.: US14269667Application Date: 2014-05-05
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Publication No.: US09562198B2Publication Date: 2017-02-07
- Inventor: Zaki Yusuf
- Applicant: Saudi Arabian Oil Company
- Applicant Address: SA Dhahran
- Assignee: SAUDI ARABIAN OIL COMPANY
- Current Assignee: SAUDI ARABIAN OIL COMPANY
- Current Assignee Address: SA Dhahran
- Agency: Leason Ellis LLP
- Main IPC: C10G33/04
- IPC: C10G33/04 ; B01D17/04
Abstract:
A demulsification process for extracting surface active biochemical products from crude oil and its fractions when they are used as feedstock during biochemical productions utilizes subcritical/supercritical CO2 as a proton pump. The process also includes a pH tuning step, thereby inducing demulsification and precipitation of biochemical products into the aqueous phase, but avoiding asphaltene precipitation by apriori addition of resinous solvents derived from crude oil or bioresources. The biochemical products are then extracted from the aqueous phase via temperature change or some other technique.
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