Auxiliary agent capable of improving delayed coking liquid yield, preparation method and application thereof

A technology of delayed coking and auxiliary agent, applied in the field of oil refining additives, can solve the problems of reducing coke yield, single action mechanism and high cost of raw materials, and achieves the effects of small filling amount, simple preparation and improved yield.

Inactive Publication Date: 2008-05-14
SINOPEC LUOYANG PETROCHEM ENG CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The present invention aims at the disadvantages of the prior art, such as single mechanism of action, high cost of raw materials, large filling volume, etc., of the auxiliary agent for increasing the liquid yield, and proposes a new auxiliary agent for increasing the liquid yield of delayed coking, so as to improve the delayed coking Yield of coking liquid, reduced coke yield

Method used

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  • Auxiliary agent capable of improving delayed coking liquid yield, preparation method and application thereof
  • Auxiliary agent capable of improving delayed coking liquid yield, preparation method and application thereof
  • Auxiliary agent capable of improving delayed coking liquid yield, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Weigh 30g butyl nitrate, 20g cetyl alcohol, 10g dimethylpolysiloxane (the kinematic viscosity is 70000mm at 40°C 2 / S), 40g of straight-run gasoline are placed in a container, stirred at normal temperature until uniformly mixed, and the liquid absorption aid A sample is obtained.

Embodiment 2

[0026] Weigh 40g n-octyl nitrate, 20g stearyl alcohol, 10g dimethylpolysiloxane (kinematic viscosity is 100000mm at 40°C 2 / S), 30g of catalytic gasoline are placed in a container, stirred at normal temperature until uniformly mixed, and the liquid absorption aid B sample is obtained.

Embodiment 3

[0028] Weigh 20g butyl nitrite, 20g eicosanol, 15g dimethylpolysiloxane (kinematic viscosity is 100000mm at 40°C 2 / S), 45g aromatic hydrocarbon solvent oil is placed in container, stirs at normal temperature until mixing evenly, obtains increasing liquid absorption agent C sample.

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Abstract

The present invention discloses one kind of assistant for raising the yield of delayed coking liquid and its preparation process and application. The assistant consists of alkyl nitrate 20-40 wt%, fatty alcohol 10-30 wt%, dimethyl polysiloxane 10-20 wt% and solvent for the rest. The present invention can raise the yield of delayed coking liquid and reduce the yield of coke obviously.

Description

technical field [0001] The invention belongs to the field of oil refining additives, in particular to an additive for improving the yield of delayed coking liquid, its preparation method and application. Background technique [0002] Delayed coking is a thermal processing process that converts residual oil into gas, light and middle distillates and coke by deep thermal cracking. A widely used heavy oil processing technology. The processing capacity of existing delayed coking units in the world has exceeded 60% of the total processing capacity of residual oil. In my country, delayed coking has become one of the common methods for processing residual oil in refineries. The typical process is: after the crude oil is preheated, it first enters the lower part of the fractionation tower, contacts and exchanges heat with the coked oil gas coming from the top of the coking tower, and then enters the radiant section of the heating furnace to be heated to the coking temperature, and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G9/16
Inventor 潘延民杨莹刘志龙
Owner SINOPEC LUOYANG PETROCHEM ENG CORP
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