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Fractional oil desulfurizing and adsorption agent and its preparation method

A technology of adsorbent and distillate oil, which is applied in the field of distillate oil desulfurization adsorbent and its preparation, can solve the problems of the adsorbent preparation method needs to be improved, the sulfide adsorption capacity needs to be improved, and the processing cost is high, so as to achieve simple adsorption operation process and preparation The method is simple and feasible, and the operation cost is reduced

Inactive Publication Date: 2003-12-17
CHINA PETROLEUM & CHEM CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the traditional hydrofining process is effective, there are still many problems as follows: 1. Large investment; in addition to building high-temperature and high-pressure treatment equipment, hydrogen production equipment (if there is no hydrogen reforming), sulfur recovery equipment, etc.
2. Due to the high temperature and high pressure hydrogen consumption involved in the processing process, the processing cost is relatively high; 3. Due to the generation of highly toxic hydrogen sulfide during the processing process, it will inevitably cause environmental pollution
1. The adsorption capacity of the adsorbent for sulfide needs to be improved
2. The adsorption operation process needs to be simplified
3. The preparation method of the adsorbent needs to be improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] (1), add 10 milliliters of water to 6.0 grams of zinc chloride to prepare an aqueous solution of zinc chloride, add 3 grams of activated carbon (AC) to the solution, let it stand for 2 hours, evaporate excess water in a water bath at 80°C, and dry at 120°C Transfer to high temperature furnace after 3 hours. In pass CO 2 Under the atmosphere, the temperature was raised to 800° C. within 3 hours, and after being kept at 800° C. for 2 hours, the temperature was naturally lowered to room temperature. (2), add 20 milliliters of hydrochloric acid solution (1: 1) in the sample that above-mentioned makes, stand after 2 hours, wash with 60 ℃ of deionized waters until no chloride ion can be detected with 1M silver nitrate solution. Dry overnight at 120°C. The prepared sample number is A. The specific surface area (BET), pore volume and pore distribution measured by nitrogen adsorption are listed in Table 1.

Embodiment 2

[0040] With embodiment 1, just 4.5 grams of zinc chlorides are dissolved in 5 milliliters of water in the step (1). The sample number is B. The specific surface area (BET), pore volume and pore distribution measured by nitrogen adsorption are listed in Table 1.

Embodiment 3

[0042] With embodiment 1, just 3 grams of zinc bromide are dissolved in 5 milliliters of water in the step (1). The sample number is C. The specific surface area (BET), pore volume and pore distribution measured by nitrogen adsorption are listed in Table 1.

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PUM

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Abstract

A desulfurizing absorbent for removing S-contained compound from distillate, especially removing dibenzothiophene and its derivatives, is prepared from activated carbon through chemical and physical activatings. Said absorbent features its special artery structure.

Description

1. Technical field [0001] The invention relates to a distillate oil desulfurization adsorbent and a preparation method thereof. 2. Background technology [0002] Distillate oil refining is an essential and important process in petrochemical industry. Its purpose is to remove organic sulfur compounds and organic nitrogen compounds contained in raw oil to meet the requirements of environmental protection. The traditional refining process is hydrofining, which converts organic sulfides and organic nitrogen compounds into hydrogen sulfide and ammonia through hydrogenation, so as to achieve the purpose of refining. Although the traditional hydrofining process is effective, there are still many problems as follows: 1. Large investment; in addition to building high-temperature and high-pressure treatment equipment, hydrogen production equipment (if there is no hydrogen reforming), sulfur recovery equipment, etc. must also be built. 2. Due to the high temperature and high pressure ...

Claims

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Application Information

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IPC IPC(8): B01J20/20C01B31/08C10G25/00
Inventor 李灿韩崇仁蒋宗轩刘艳孙秀萍
Owner CHINA PETROLEUM & CHEM CORP
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