Alkylaniline polyether benzenesulfonate and process of producing same

US12180419B2 · kind B2 · utility

Assignees

• CHINA PETROLEUM & CHEMICAL CORPORATION · CN
• SHANGHAI RESEARCH INSTITUTE OF PETROCHEMICAL TECHNOLOGY, SINOPEC · CN

Inventors

• Yingcheng Li · Shanghai, CN
• Xinning Bao · Shanghai, CN
• Weidong Zhang · Shanghai, CN
• Ou Sha · Shanghai, CN
• Xinyue Wu · Shanghai, CN
• Jun Jin · Shanghai, CN

Key dates

• Filing date: Jul 2, 2021
• Grant date: Dec 31, 2024
• Expiry date: Sep 4, 2041

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K8/588
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A process for the conversion of methanol to olefins includes the steps of passing a feedstock comprising methanol to a fluidized bed reactor in contact with a catalyst to produce an olefin product, wherein the process at least partially deactivates the catalyst to form an at least partially deactivated catalyst; and passing spent catalyst from said at least partially deactivated catalyst to a regenerator for regeneration thereby forming regenerated catalyst and returning activated catalyst from said regenerated catalyst to said reactor via a regenerated catalyst line. An oxygen volume content in the gas-phase component at the outlet of the regenerated catalyst pipeline is controlled to be less than 0.1 percent, preferably less than 0.05% and more preferably less than 0.01% on the regenerated catalyst pipeline.