Continuous reforming technology of hydrocarbons

Abstract

The invention discloses a continuous reforming technology of hydrocarbons. According to the technology, at least two reforming reactors and at least one catalyst regenerator are arranged. The technology is characterized in that conveying of reaction feedstock to each reforming reactor is carried out in series, and circulation conveying of a catalyst between the reactors and the regenerator is carried out in parallel. According to the invention, all the reactors can use fresh high-activity catalysts and independently adjust and change catalyst flow according to needs, catalyst activity can be fully performed, utilization rate of catalysts can be raised, and reforming conversion rate and product yield can be enhanced.

Description

technical field [0001] The invention relates to a hydrocarbon continuous reforming process. Background technique [0002] Continuous reforming is a secondary petroleum processing technology. The processed raw materials are mainly low-octane straight-run naphtha, hydrogenated naphtha, etc., using platinum Pt-tin-Sn bimetallic catalysts, at about 500 ℃ Under high temperature, molecular rearrangement and isomerization occur, which increases the production of aromatics and improves the octane number of gasoline. [0003] Moving bed reactor continuous regenerative reforming, referred to as continuous reforming. At present, the three main suppliers of continuous reforming patented technology that have been industrially applied in the world are UOP of the United States, Axens of France and SEI of China. In the continuous reforming unit, the catalyst continuously flows through three (or four) moving bed reactors in series, and the charcoal content of the raw catalyst flowing out f...

AI Technical Summary

Problems solved by technology

Although the system can adjust the catalyst circulation speed according to the reaction situation and the coking situation of the catalyst because the regulating valve is installed, it is still the form of the aforementioned "downstream" continuous reforming process in terms of the flow direction of the reaction feed and the catalyst, and Does not overcome the aforementioned problems of the "co-current" continuous reforming process

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