Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A kind of elution column and its elution method for whole fraction coal tar

A technology of elution tower and coal tar, which is applied in the field of elution tower, can solve problems such as inadaptability to dehydration of coal tar, instability of viscous properties, and influence on normal operation of the tower, so as to avoid sticking and coking, good Economic benefits, the effect of avoiding the phenomenon of tower flushing

Active Publication Date: 2021-08-06
深圳前海新域能源科技有限公司
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because coal tar is a liquid with extremely high viscosity and unstable properties, and also contains solid particles such as moisture and dust, when operating in the existing elution tower, it is very easy to produce tower flushing phenomenon (that is, a large amount of liquid is washed by gas. brought to the upper part), and it is easy to produce dead corners, and carbonization and coking occurs at the dead corners to affect the normal operation of the tower. Therefore, the existing elution towers are not suitable for dehydration of coal tar, dissolved oxygen, and low-boiling phenolic compounds (i.e. "three Stripping operation

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of elution column and its elution method for whole fraction coal tar
  • A kind of elution column and its elution method for whole fraction coal tar
  • A kind of elution column and its elution method for whole fraction coal tar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Such as Figure 1-4 As shown, the present embodiment provides a schematic structural diagram of an elution tower, including a tower body 1, a liquid inlet 3 and a gas outlet 2 are provided on the top of the tower body 1, wherein the liquid inlet 3 extends to the uppermost dispersing plate in the tower In the liquid collection area; the bottom of the tower body 1 is provided with a liquid outlet 9 and a gas inlet 10; the tower body 1 is provided with 10 sets of dispersing plates, and each set of dispersing plates includes umbrella-shaped dispersing plates 5 distributed up and down And the bucket-shaped dispersion plate 8, there is a gap between the umbrella-shaped dispersion plate 5 and the side wall of the tower body 1, and the lower end of the bucket-shaped dispersion plate 8 is provided with an opening 13.

[0033] In this embodiment, the umbrella-shaped dispersing plate 5 is a right conical steel plate, installed in the center of the tower, and there are four connect...

Embodiment 2

[0040] The present embodiment provides a method for elution of full fraction coal tar using the elution tower of Embodiment 1, implemented in a coal company in Hami, Xinjiang, comprising the following steps:

[0041] (1) Heating treatment: use a heat exchanger to heat the coal tar to 170°C, and send it into the elution tower from the liquid inlet;

[0042] (2) Nitrogen is passed into the tower: feed nitrogen into the tower from the gas inlet, the amount of nitrogen feed is 1.5% of the full fraction coal tar tower charge, thereby reducing the partial pressure of each component in the full fraction coal tar, so that it evaporates at a lower boiling temperature;

[0043] (3) System vacuuming: adopt vacuum pump to vacuumize, and the vacuum degree is 0.08Mpa, so that moisture, dissolved oxygen, and low-boiling point phenolic compounds are evaporated from the tower top;

[0044] (4) Separation of distillate at the top of the tower: the distillate at the top of the tower enters the ...

Embodiment 3

[0049] The present embodiment provides a method for elution of full-fraction coal tar using the elution tower of Embodiment 1, which is implemented in B Coal Enterprise in Hami, Xinjiang, including the following steps:

[0050] (1) Heating treatment: use a heat exchanger to heat the coal tar to 200°C, and send it into the elution tower from the liquid inlet;

[0051] (2) pass into nitrogen in the tower: pass into nitrogen in the tower from gas inlet, nitrogen feed rate is the 2.0% of full cut coal tar tower feed, thereby reduces the partial pressure of each component in the full cut coal tar, so that It distills off at a lower boiling temperature;

[0052] (3) System vacuuming: adopt vacuum pump to vacuumize, and the vacuum degree is 0.085Mpa, so that moisture, dissolved oxygen, and low-boiling point phenolic compounds are evaporated from the tower top;

[0053] (4) Separation of distillate at the top of the tower: the distillate at the top of the tower enters the cooler from...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
widthaaaaaaaaaa
diameteraaaaaaaaaa
heightaaaaaaaaaa
Login to View More

Abstract

The invention provides an elution tower and its method for elution of full fraction coal tar. The elution tower includes a tower body, a liquid inlet and a gas outlet are arranged at the top of the tower body, and a liquid inlet and a gas outlet are arranged at the bottom of the tower body. outlet and gas inlet; the tower body is provided with multiple sets of dispersing plates, and each set of dispersing plates includes an umbrella-shaped dispersing plate and a bucket-shaped dispersing plate that are distributed up and down, and the umbrella-shaped dispersing plate and the side wall of the tower body There is a gap between them, and the lower end of the bucket-shaped dispersing plate is provided with an opening. The elution method of the full-fraction coal tar by the above-mentioned elution tower comprises the following steps: sending the whole-fraction coal tar into the elution tower after being heated to 130-240° C.; Vacuumize the stripping tower; cool the distillate at the top of the tower to below 40°C; cool the distillate at the top of the elution tower and enter the separation tank for oil, water, and gas separation; , sent to the next process.

Description

technical field [0001] The invention relates to the technical field of elution towers, in particular to an elution tower and a method for elution of full fraction coal tar. Background technique [0002] All kinds of coal tar contain impurities that cause harm or have adverse effects on production equipment, especially hydrogenation production equipment, hydrogenation catalysts and product quality. These impurities are mainly water (1.5-4.5%), metals (100-400mg / kg) and solid impurities (2-5%). The water in the coal tar can cause fluctuations in the operating temperature of the heating furnace, increase energy consumption, and cause pressure changes in the equipment after the water vaporizes. The water vapor will age the catalyst and reduce its activity or pulverize it, blocking the hydrogenation reactor. The metals contained in coal tar are mainly sodium, calcium, magnesium, iron, etc. These metals will not only cause harm to hydrogenation production equipment and pipelines,...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C10C1/18C10C1/19C10C1/02C10C1/06
CPCC10C1/02C10C1/06C10C1/18C10C1/19
Inventor 李志英何宏鹰张军黄亚松房广信
Owner 深圳前海新域能源科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com