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Low energy consumption catalytic conversion method of hydrocarbon oil

A catalytic conversion method and technology with low energy consumption, applied in catalytic cracking, cracking, petroleum industry and other directions, can solve the problems of increasing catalyst consumption, increasing catalyst aging and deactivation, etc.

Active Publication Date: 2008-06-25
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
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Problems solved by technology

In addition, the use of water vapor as the atomization medium also increases the aging and deactivation of the catalyst and increases the consumption of the catalyst.

Method used

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  • Low energy consumption catalytic conversion method of hydrocarbon oil

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Embodiment

[0030] Adopt the same reactor as comparative example, reaction process and product analysis method. The atomization steam volume of raw oil is 1000g / h, and 4000g / h propane is added as the atomization medium. The properties of the raw materials used are shown in Table 1, and the properties of the catalyst used are shown in Table 2. The main operating conditions and product distribution are shown in Table 3.

[0031] It can be seen from Table 3: compared with the comparative example, the amount of atomized steam is reduced from 3000g / h to 1000g / h, and 4000g / h propane is added as the atomized medium. From the perspective of product distribution, the dry gas production rate increases by 0.4 percentage points , the yield of liquefied gas decreased by 1.4 percentage points, the yield of gasoline increased by 0.3 percentage points, the yield of diesel oil increased by 0.4 percentage points, the yield of coke was not much different, the yield of propylene increased by 0.2 percentage ...

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Abstract

The invention provides a low energy consumption hydrocarbon oil catalytic conversion method, wherein, material oil and an atomizing medium are mixed and sprayed in a reactor by a nozzle, and contact and react with high temperature regenerated catalyst, the oil gas and the catalyst are separated after the reaction, the isolated oil gas enters into a product fractionating system, the isolated deactivated catalyst which undergoes or does not undergo the steam stripping enters into a regenerator for charring regeneration, the catalyst which regains the activation returns to the reactor for cycling use; the atomizing medium contains C3 - C5 alkane. By adopting the method of the invention, on the basis of not changing reaction operating conditions, the product distribution is optimized and the energy consumption of atomizing steam is lowered.

Description

technical field [0001] The invention relates to a method for catalytic conversion of hydrocarbon oil in the absence of hydrogen, more specifically, a method for catalytic conversion of hydrocarbon oil into gasoline, diesel oil, liquefied gas, propylene, ethylene and other low-carbon olefins. Background technique [0002] In the process of fluidized catalytic cracking or fluidized catalytic cracking, the high-temperature regenerated catalyst contacts and reacts with feedstock oil. The main products are light oil products such as gasoline and diesel oil, and light hydrocarbons such as liquefied gas, propylene, ethylene and other low-carbon olefins. A portion of dry gas, oil slurry and coke. In this process, the high-temperature regenerated catalyst at 600-750°C contacts and reacts with the raw material oil in the lower part of the riser, or contacts and reacts with the raw material oil in the fluidized bed of the non-riser tube. After the reaction, coke is deposited on the cat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G11/18C10G11/20
Inventor 张执刚张久顺谢朝钢
Owner CHINA PETROLEUM & CHEM CORP
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