Process for reducing contents of components above C3 in dry gas

A component content, dry gas technology, applied in the field of C4 component content, reducing C3 in dry gas, can solve the problems of reducing oil and gas entrainment, dry gas is not dry, etc., to achieve easy implementation, reduced entrainment, and quality improvement Effect

Active Publication Date: 2006-04-26
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a method for reducing the content of C3 and C4 components in dry gas on the basis of the prior art, so as to solve the problem of non-drying of dry gas and effectively reduce the entrainment of oil and gas

Method used

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  • Process for reducing contents of components above C3 in dry gas
  • Process for reducing contents of components above C3 in dry gas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] This example illustrates that the content of components above C3 in dry gas can be significantly reduced by adopting the absorption stabilization process provided by the present invention.

[0019] Table 1 shows the changes in dry gas composition before and after the application of the present invention in a set of conventional catalytic cracking units. It can be seen from the table that after adopting the present invention, the content of carbon three and above components in the dry gas is reduced from the previous 5.86v% to the current 3.05v%, that is, the reduction range is 48%.

Embodiment 2

[0021] This example shows that the content of components above C3 in dry gas can be significantly reduced by adopting the absorption stabilization process provided by the present invention.

[0022] Table 2 shows the changes in dry gas composition before and after the application of the present invention in a set of catalytic cracking units that produce more liquefied gas. It can be seen from the table that after adopting the present invention, the content of carbon three and above components in the dry gas is reduced from 8.66% by weight before to 1.97% by weight now, that is, the reduction rate is 77%.

[0023] components

[0024] components

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Abstract

The method of lowering the content of C3 and above components in dry gas includes increasing two oil-gas separating tanks and corresponding pipeline to conventional absorbing and stabilizing process. The method can improve the quality of dry gas obviously and lower the entrained C3 and above component amount obviously, and test shows that the method of the present invention can lower the content of C3 and above components in dry gas by over 48 %.

Description

technical field [0001] The invention relates to a method for reducing the content of C3 and C4 components in dry gas. Background technique [0002] Oil and gas separation is the most common separation process in oil refining and chemical enterprises. It is the most common application and has the most problems. The most common problem is the effect of oil and gas separation, that is, the problem of oil and gas entrainment. For example, the absorption of catalytic cracking units and coking units is often encountered Stable system does not dry out the problem. [0003] The absorption stabilization system of the catalytic cracking unit is characterized by a large amount of gas and a small amount of liquid in the absorption tower and reabsorption tower. The entrainment of points is more prominent. [0004] At present, there are four towers in the absorption stabilization system of the catalytic cracking unit, namely, the absorption tower, the desorption tower, the reabsorption ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G70/00C07C7/00C10G5/04
Inventor 毛安国侯曲国
Owner CHINA PETROLEUM & CHEM CORP
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