Modified activated charcoal for fuel desulfuration and preparation method and device thereof

A technology of activated carbon and modification, applied in the field of preparation of modified activated carbon, can solve the problems of difficult deep removal, complicated desulfurization process, space obstruction, etc., and achieve the effects of improving adsorption capacity, pollution-free environment, and convenient operation.

Inactive Publication Date: 2007-09-26
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional hydrodesulfurization technology can remove most of the sulfides in fuel oil. The disadvantage is that hydrodesulfurization needs to be carried out under high temperature and high pressure, which not only consumes a large amount of hydrogen but also greatly loses the octane number. In addition, for thiophene sulfur compounds, especially polycyclic organosulfurs, are difficult to remove in depth due to their steric hindrance
[0004] In 2003, Yang and his research team from the University of Michigan published an article in Science (R.T.Yang, A.J.Herna'ndez-Maldonado, F.H.Yang, Science 301 (2003), 79), reporting the development

Method used

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  • Modified activated charcoal for fuel desulfuration and preparation method and device thereof
  • Modified activated charcoal for fuel desulfuration and preparation method and device thereof
  • Modified activated charcoal for fuel desulfuration and preparation method and device thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] According to the device shown in Figure 1, the SY-13 original activated carbon A produced by Heilongjiang Senyuan Activated Carbon Co., Ltd. was screened to obtain uniform particles of 40-60 mesh size, which were pickled with 0.1mol / l hydrochloric acid and 0.1mol / l sodium hydroxide. Alkali washing and water washing remove the inorganic and organic impurities on the surface of the activated carbon, and dry it for later use. Take 3g of activated carbon and place it in a U-shaped tube. Put the U-shaped tube filled with activated carbon in the microwave reactor, connect the gas circuit and check the air tightness, first open the nitrogen cylinder, set the flow rate of the nitrogen line to 3cm / min, feed nitrogen for 30min, and then turn on the microwave reactor. The microwave power is set to 100w, the working time is set to 20min, and the nitrogen line flow rate is 0.5cm / min to modify the surface of the activated carbon. After the reaction is completed, nitrogen is introduce...

Embodiment 2

[0035] According to the device shown in Figure 1, the SY-13 original activated carbon A produced by Heilongjiang Senyuan Activated Carbon Co., Ltd. was screened to obtain uniform particles of 40-60 mesh size, which were pickled with 0.1mol / l hydrochloric acid and 0.1mol / l sodium hydroxide alkali Wash and wash with water to remove inorganic and organic impurities on the surface of activated carbon, and dry it for later use. Take 3g of activated carbon and place it in a U-shaped tube. Put the U-shaped tube filled with activated carbon in the microwave reactor, connect the gas circuit and check the air tightness, first open the nitrogen cylinder, set the flow rate of the nitrogen line to 3cm / min, feed nitrogen for 30min, and then turn on the microwave reactor. The microwave power is set to 1200w, the working time is set to 3min, and the nitrogen line flow rate is 8cm / min to modify the surface of the activated carbon. Activated carbon samples. As shown in Table 1 and Table 2, Bo...

Embodiment 3

[0037] According to the device shown in Figure 1, the SY-6 original activated carbon B produced by Heilongjiang Senyuan Activated Carbon Co., Ltd. was screened to obtain uniform particles of 40-60 mesh size, which were pickled with 0.1mol / l hydrochloric acid and 0.1mol / l sodium hydroxide alkali Wash and wash with water to remove inorganic and organic impurities on the surface of activated carbon, and dry it for later use. Take 3g of activated carbon and place it in a U-shaped tube. Put the U-shaped tube filled with activated carbon in the microwave reactor, connect the gas circuit and check the air tightness, first open the nitrogen cylinder, set the flow rate of the nitrogen line to 3cm / min, feed nitrogen for 30min, and then turn on the microwave reactor. The microwave power is set to 900w, the working time is set to 10min, and the nitrogen line flow rate is 5cm / min to modify the surface of the activated carbon. Activated carbon samples. As shown in Table 1 and Table 2, Boe...

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Abstract

The invention discloses a modified active carbon of fuel oil desulfurization and preparing method and device, which comprises the following steps: putting the U type pipe incorporating activated char of preliminary treatment into microwave reactor; leading into nitrogen; operating microwave reactor; cooling active carbon to room temperature; leading into nitrogen; placing quartz pipe with gas inlet and outlet into microwave reactor (4); connecting gas inlet side of quartz pipe (5) and gas flow controller (3); putting adsorbent active carbon (6) in the quartz (5). The surface of the preparing active carbon includes phenolic hydroxyl group, carboxyl acid group and inner ester group, wherein the density of carboxyl acid group can reach 0.0011mmol/g-0.0634mmol/g.

Description

technical field [0001] The invention relates to the preparation of sulfide adsorption materials in oil products, in particular to a preparation method and device for modified activated carbon used for desulfurization of fuel oil. Background technique [0002] With the acceleration of the modernization of human society, the number of vehicles and ships using various motor vehicles has also increased rapidly. In 2005, the number of cars in the world was 650 million, of which the number of cars in my country was 25 million, and by 2010 it will reach 4000. million vehicles. It is estimated that the number of cars in the world will reach 1 billion in 2025, and that in my country will exceed 100 million. Extensive use of automobiles not only consumes one-half of the world's oil consumption, but also emits a large amount of SO2 to the environment. 2 exhaust gas. According to statistics, tens of millions of tons of SO2 are discharged into the air every year due to the combustion o...

Claims

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Application Information

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IPC IPC(8): C01B31/10C01B31/08C01B32/336
Inventor 李忠余漠鑫奚红霞夏启斌顾星
Owner SOUTH CHINA UNIV OF TECH
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