A method for desiliconizing oil
By adding organic compounds containing hydroxyl or carboxyl groups to the oil and contacting them with the silicon-collecting catalyst, the problem of removing complex silicon compounds from oil in existing technologies has been solved, achieving the removal of stable silicon compounds and protecting the activity of the refining catalyst.
CN116064074BActive Publication Date: 2026-07-03CHINA PETROLEUM & CHEMICAL CORP +1
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Patent Information
- Application Number
- CN202111278947.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-10-31
- Publication Date
- 2026-07-03
- Estimated Expiration
- 2041-10-31
AI Technical Summary
Technical Problem
Existing technologies are insufficient to effectively remove complex siloxanes and silane organosilicon compounds from oil products, leading to poisoning and deactivation of refining catalysts and affecting the refining process.
Method used
Adding organic compounds containing hydroxyl or carboxyl groups, such as alcohols or organic acids, to the feedstock oil allows them to come into contact with a silicon-scavenging catalyst, promoting the breakage and removal of stable silicon compounds.
Benefits of technology
Without altering the original reaction process, effective removal of difficult-to-remove silicon compounds was achieved, meeting the silicon content requirements of oil products and protecting the activity of refining catalysts.
✦ Generated by Eureka AI based on patent content.
Abstract
A method for removing silicon from oil products, comprising the steps of mixing hydroxyl and / or carboxyl containing organic matter with raw oil and contacting with silicon capturing catalyst. The mass content of the hydroxyl and / or carboxyl containing organic matter in the raw oil is 0.01-5wt%, preferably 0.5-3.5wt%, more preferably 1-2.5wt%. The present application aims at the new problems in the prior art in the removal of silicon from oil products, and aims at the problem that the removal of silicon from oil products is always substandard. Firstly, the existing problems are clarified, and it is basically determined that the change of the type of silicon-containing compounds in the oil product is related. Through creative analysis and experimental research, a method for promoting the removal of silicon by adding hydroxyl or carboxyl containing organic matter to the oil product is proposed, and unexpected technical effects are achieved. Under the condition of not changing the original reaction process and the silicon capturing catalyst, the removal of silicon is up to standard, which provides a feasible technical scheme for enterprises to solve the problem of silicon removal.
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