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Preparation method for fuel oil desulfuration adsorbent

An adsorbent and fuel oil technology, which is applied in chemical instruments and methods, hydrocarbon oil treatment, refined hydrocarbon oil, etc., can solve the problems of long reduction time, weak reduction of inert gas, and high reduction temperature, so as to improve the adsorption effect and reduce The effect of fast speed and short recovery time

Active Publication Date: 2017-07-28
YANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] It can be seen that due to the weak reducing property of inert gas, not only the reduction temperature is high but also the reduction time is long
In addition, after high temperature and long-term reduction, a very small amount of oxygen in the inert gas can easily oxidize monovalent copper, reducing the proportion of monovalent copper in the adsorbent.

Method used

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  • Preparation method for fuel oil desulfuration adsorbent
  • Preparation method for fuel oil desulfuration adsorbent

Examples

Experimental program
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Effect test

Embodiment 1

[0023] 1. Preparation of adsorbent: weigh 0.3g CuCl 2 2H 2 O and 1.0g of SBA-15 were placed in a 50mL beaker, then 10mL of 95% ethanol was added, and stirred at room temperature until the ethanol was completely volatilized to obtain a loaded CuCl 2 samples, labeled as CuCl 2 / SBA-15.

[0024] CuCl 2 / SBA-15 is placed in a quartz tube in a tube furnace, and a mixed gas composed of ethylene and nitrogen is introduced into the heating furnace, and the volume percentage of ethylene is 10%. Then set the temperature of the heating furnace to 120°C, and after reducing for 90 minutes, stop heating, wait for the furnace body to cool to room temperature under an inert atmosphere, stop ventilation, take out the quartz tube, and obtain an adsorbent loaded with cuprous chloride, which is marked as CuCl / SBA-15.

[0025] 2. Application: Dissolve benzothiophene in n-octane and dilute it to prepare simulated fuel oil with a sulfur content of 500ppm.

[0026] Take 10mL of simulated feedst...

Embodiment 2

[0028] 1. Preparation of adsorbent: weigh 0.3g CuCl 2 2H 2 O and 1.0g of SBA-15 were placed in a 50mL beaker, then 10mL of 95% ethanol was added, and stirred at room temperature until the ethanol was completely volatilized to obtain a loaded CuCl 2 samples, labeled as CuCl 2 / SBA-15.

[0029] CuCl 2 / SBA-15 is placed in the quartz tube of the tube furnace, and a mixed gas composed of ethylene and nitrogen is passed into the heating furnace, and the volume percentage of ethylene is 10%. Then set the temperature of the heating furnace to 180°C. After reducing for 90 minutes, stop heating. After the furnace body is cooled to room temperature under an inert atmosphere, stop ventilation, take out the quartz tube, and obtain an adsorbent loaded with cuprous chloride, which is marked as CuCl / SBA-15.

[0030] 2. Application: Dissolve benzothiophene in n-octane and dilute it to prepare simulated fuel oil with a sulfur content of 500ppm.

[0031] Take 10mL of simulated feedstock o...

Embodiment 3

[0033] 1. Preparation of adsorbent: weigh 0.3g CuCl 2 2H 2 O and 1.0g of SBA-15 were placed in a 50mL beaker, then 10mL of 95% ethanol was added, and stirred at room temperature until the ethanol was completely volatilized to obtain a loaded CuCl 2 samples, labeled as CuCl 2 / SBA-15.

[0034] CuCl 2 / SBA-15 is placed in the quartz tube of the tube furnace, and a mixed gas composed of ethylene and nitrogen is passed into the heating furnace, and the volume percentage of ethylene is 20%. Then set the temperature of the heating furnace to 180°C. After reducing for 90 minutes, stop heating. After the furnace body is cooled to room temperature under an inert atmosphere, stop ventilation, take out the quartz tube, and obtain an adsorbent loaded with cuprous chloride, which is marked as CuCl / SBA-15.

[0035] 2. Application: Dissolve benzothiophene in n-octane and dilute it to prepare simulated fuel oil with a sulfur content of 500ppm.

[0036] Take 10mL simulated oil and put it ...

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Abstract

The invention discloses a preparation method for a fuel oil desulfuration adsorbent, and belongs to the technical field of fuel oil desulfuration. The method comprises the steps of dispersing CuCl2 and a carrier into a solvent and stirring until a solvent evaporates to obtain a carrier material which is uniformly loaded with CuCl2; putting a quartz tube containing the carrier material which is uniformly loaded with the CuCl2 into a heating furnace, introducing a mixed gas prepared from ethylene and an inert gas into the heating furnace for reduction reaction and cooling to a room temperature after reaction is completed to obtain the CuCl2-loaded adsorbent. The method is high in reduction rate and short in reduction time; compared with hydrogen, the reducibility of ethylene is relatively weak and monovalent copper is not reduced into pure copper; the ratio of the monovalent copper in a copper component of the obtained sample is relatively high; and the adsorption effect on thiophene sulfide in fuel oil can be improved.

Description

technical field [0001] The invention belongs to the technical field of fuel oil desulfurization, and in particular relates to a preparation method of an adsorbent for desulfurization. Background technique [0002] With the development of the economy, the consumption of vehicle fuel oil is increasing, and the resulting SO in the exhaust gas of motor vehicles x The problem of environmental pollution is also becoming more and more serious. There are many kinds of sulfides in fuel oil, mainly mercaptans, sulfides, thiophenes, benzothiophenes, dibenzothiophenes and their derivatives. [0003] Fuel oil desulfurization technologies are mainly divided into two categories: hydrodesulfurization and non-hydrogenation desulfurization. At present, hydrodesulfurization technology is relatively mature, but benzothiophene, dibenzothiophene, especially 4,6-dimethyldibenzothiophene, etc., make hydrodesulfurization difficult due to the steric hindrance of the methyl group, and The hydrogena...

Claims

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Application Information

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IPC IPC(8): B01J20/02B01J20/30C10G25/00
CPCB01J20/0237B01J20/0288C10G25/003C10G2300/202
Inventor 孔黎明张婷姚日远张丽丽周祥
Owner YANGZHOU UNIV
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