Modifying method for naphtha and light hydrocarbon aromatization

A naphtha and aromatization technology, applied in the direction of naphtha catalytic reforming, etc., can solve the problem of no catalyst regeneration method, and achieve the effects of reducing energy consumption, increasing the flexibility of regeneration operation, and being easy to control.
CN101747933BActive Publication Date: 2013-06-05CHINA PETROLEUM & CHEM CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEM CORP
Publication Date
2013-06-05

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Abstract

A modifying method for naphtha and light hydrocarbon aromatization comprises: contacting naphtha and C3-C5 light hydrocarbon with aromatization catalyst in the presence of hydrogen-containing gas to carry out aromatization modifying reaction, wherein the reaction temperature is 250-600 DEG C, and the volume ratio of hydrogen to naphtha is 20-400. The method can convert naphtha with low octane value and low-carbon hydrocarbon into gasoline component with high octane value and excellent liquefied gas, the final distilling point of liquid product and the carbon-accumulating speed of catalyst areobviously reduced, and the service life of catalyst is prolonged.
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Description

technical field

[0001] The invention is a light hydrocarbon aromatization upgrading method, in particular, a method of using low-octane naphtha and C 3 ~C 5 The mixture of light hydrocarbons is used as raw material to produce aromatic hydrocarbons or clean gasoline components, and a method for producing high-quality liquefied gas. Background technique

[0002] With the introduction of unleaded gasoline and new gasoline standards, some low-octane gasoline, such as reformed top oil, condensate, partially hydrocoked gasoline and straight-run gasoline, need to find suitable processing technology. Although this part of naphtha is suitable as ethylene raw material, it is difficult to transport because of its high vapor pressure. If there is no ethylene plant near the enterprise, it is difficult to be used as ethylene raw material. At present, catalytic reforming is the main device used by refineries to produce aromatics and high-octane clean gasoline blending components. Howeve...

Claims

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