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Method for removing nitride in diesel fraction of shale oil by quaterisation reaction

A quaternization reaction, shale oil technology, applied in the petroleum industry, processing hydrocarbon oil, refining hydrocarbon oil and other directions, can solve the problems of complex synthesis process, high cost of ionic liquid, unfavorable for large-scale industrial production and so on, to overcome The effect of impurity treatment and reuse of the environment

Active Publication Date: 2017-05-17
LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the key to this method is how to cultivate nitrogen-removing microorganisms that are resistant to poisons and reduce the harm of poisons to microorganisms, which is not conducive to large-scale industrial production
[0008] In addition, although the denitrification rate of simple ionic liquid denitrification is high, the cost of ionic liquid is relatively expensive, and the synthesis process is relatively complicated, so it is only suitable for laboratory research

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Mix 100ml of shale oil diesel fraction with 50ml of halogenated alkanes, heat and stir in a water bath, set the heating temperature to 50°C, and stir for 11 hours. Distill the product, reclaim the halogenated alkanes therein, and measure its total nitrogen content; pour the lower layer into the conical flask, take the same dose of sodium fluoroborate powder, and add 50ml of acetone to dissolve, continue to stir the reaction, after the reaction is over, Acetone was recovered by distillation to obtain a light yellow viscous liquid; the reaction total nitrogen removal rate reached 30%.

[0019] The halogenated alkane is ethyl bromide.

Embodiment 2

[0021] Mix 100ml shale oil diesel fraction with 50ml halogenated alkanes, heat and stir in a water bath, set the heating temperature to 65°C, and stir for 11 hours. Distill the product, reclaim the halogenated alkanes therein, and measure its total nitrogen content; pour the lower layer into the conical flask, take the same dose of sodium fluoroborate powder, and add 50ml of acetone to dissolve, continue to stir the reaction, after the reaction is over, Acetone was recovered by distillation to obtain a light yellow viscous liquid; the reaction total nitrogen removal rate reached 30%.

[0022] The halogenated alkane is ethyl bromide.

Embodiment 3

[0023] Example 3: Mix 100ml of shale oil diesel fraction with 50ml of halogenated alkanes, heat and stir in a water bath, set the heating temperature to 65°C, and stir for 11 hours. Distill the oil in the upper layer, recover the halogenated alkanes, and measure the total nitrogen content; pour the lower layer into the Erlenmeyer flask, take the same dose of sodium fluoroborate powder, and add 50ml of acetone to dissolve, continue to stir the reaction, with After the reaction, the acetone was recovered by distillation to obtain a light yellow viscous liquid; the removal rate of total nitrogen in the reaction reached 30%.

[0024] The halogenated alkanes are halogenated n-butanes.

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Abstract

The invention relates to a method for removing nitride in a diesel fraction of shale oil by quaterisation reaction. According to the method, halogenated hydrocarbon and a diesel fraction of shale oil are mixed in proportion to carry out a quaterisation reaction; after the reaction, precipitates are separated; a reagent in oils can be recovered and reused, and total nitrogen removal rate of the reaction reaches 30%; in addition, precipitates react with a precipitating agent to synthesize an ionic liquid for further utilization.

Description

technical field [0001] The invention relates to the field of denitrification of oil products, in particular to a method for removing nitrogen compounds in shale oil diesel fractions by quaternization reaction. Background technique [0002] Shale oil is an important unconventional energy source, its main composition is similar to that of natural oil, and its reserves are abundant, but its content of heteroelements is much higher than that of natural oil. Shale oil diesel fraction accounts for about 46%, so the development of its denitrification process is gradually deepening. At present, the denitrification methods mainly include hydrogenation denitrification technology and non-hydrogenation denitrification technology. Non-hydrogenation denitrification technology includes acid-base refining method, solvent refining method, complex denitrification technology, biological denitrification technology, etc. [0003] The hydrodenitrogenation technology actually converts the nitroge...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G29/26
CPCC10G29/26C10G2300/202C10G2400/04
Inventor 韩冬云庞海全石薇薇乔海燕曹祖宾
Owner LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY