Normal temperature high efficient remover for hydrogen sulfide and its preparation method and application

A hydrogen sulfide and removal agent technology, applied in chemical instruments and methods, separation methods, dispersed particle separation, etc., can solve the problems of slow desulfurization speed at room temperature, high desulfurization temperature, vanadium limitation, etc., and achieve excellent results

Inactive Publication Date: 2008-01-09
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the application of this method, there are still problems such as high desulfurization temperature, slow de

Method used

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  • Normal temperature high efficient remover for hydrogen sulfide and its preparation method and application
  • Normal temperature high efficient remover for hydrogen sulfide and its preparation method and application

Examples

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Effect test

Embodiment 1

[0034] Example 1: A high-efficiency remover of hydrogen sulfide at room temperature 1-sodium nitroanthraquinone disulfonate and its preparation method

[0035] (1) Mix 1 kg of 1-aminoanthraquinone with 2 kg of fuming sulfuric acid, heat up to 150° C. and react for 6 hours under stirring conditions, and lower to normal temperature to obtain 1-aminoanthraquinone disulfonic acid solution;

[0036] (2) Slowly add the 1-aminoanthraquinone disulfonic acid solution dropwise to 2 kg of water, then slowly add 2 mol parts of the oxidizing agent potassium persulfate and stir for 2 hours to obtain the 1-nitroanthraquinone disulfonic acid solution;

[0037] (3) Slowly add sodium carbonate to the 1-nitroanthraquinone disulfonic acid solution, and neutralize to pH=8 to obtain a 1-nitroanthraquinone disulfonic acid sodium solution;

[0038] (4) Heat the 1-nitroanthraquinone disulfonate sodium solution to 60°C, filter it while it is hot, and dehydrate the filtrate under reduced pressure to 20%...

Embodiment 2

[0040] Example 2: A high-efficiency remover of hydrogen sulfide at room temperature 1-sodium nitroanthraquinone disulfonate and its preparation method

[0041] (1) Mix 1 kg of 1-aminoanthraquinone with 2.5 kg of fuming sulfuric acid, heat up to 120° C. and react for 8 hours under stirring conditions, and lower to normal temperature to obtain 1-aminoanthraquinone disulfonic acid solution;

[0042] (2) Slowly add the 1-aminoanthraquinone disulfonic acid solution dropwise to 2.5 kg of water, then slowly add 2 mol parts of the oxidizing agent potassium persulfate and stir for 3 hours to obtain the 1-nitroanthraquinone disulfonic acid solution ;

[0043] (3) Slowly add sodium carbonate to the 1-nitroanthraquinone disulfonic acid solution, and neutralize to pH=9 to obtain a 1-nitroanthraquinone disulfonic acid sodium solution;

[0044] (4) 1-Nitroanthraquinone sodium disulfonate solution is formulated into a 10% solution, and the pH value of the solution adjusted with sodium carbonat...

Embodiment 3

[0045] Example 3: A high-efficiency remover of hydrogen sulfide at room temperature 1-sodium nitroanthraquinone disulfonate and its preparation method

[0046] (1) Mix 1 kg of 1-aminoanthraquinone with 4.0 kg of fuming sulfuric acid, heat up to 120° C. and react for 16 hours under stirring conditions, and lower to normal temperature to obtain 1-aminoanthraquinone disulfonic acid solution;

[0047] (2) Slowly add 1-aminoanthraquinone disulfonic acid solution dropwise to 4.0 kg parts of water, then slowly add 4 mol parts of oxidant potassium permanganate and stir for 7 hours to obtain 1-nitroanthraquinone disulfonic acid solution;

[0048] (3) Slowly add sodium carbonate to the 1-nitroanthraquinone disulfonic acid solution, and neutralize to pH=8 to obtain a 1-nitroanthraquinone disulfonic acid sodium solution;

[0049] (4) Prepare 1-nitroanthraquinone disulfonate sodium solution into an 8% solution, then dissolve it into about 0.5% sodium vanadate, and adjust the pH value of t...

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Abstract

The present invention discloses one kind of normal temperature efficient hydrogen sulfide eliminating agent prepared with sodium 1-nitroanthraquinone disulfonate. Sodium 1-nitroanthraquinone disulfonate is prepared through reaction of 1-amino anthraquinone and oleum to obtain 1-nitroanthraquinone disulfonic acid solution, dropping 1-nitroanthraquinone disulfonic acid solution into water via stirring and adding oxidant to react for obtaining 1-nitroanthraquinone disulfonic acid solution, adding alkali to neutralize and to obtain sodium 1-nitroanthraquinone disulfonate solution, heating and filtering, vacuum dewatering the filtrate, cooling to normal temperature, filtering and drying to obtain sodium 1-nitroanthraquinone disulfonate product. The present invention has simple preparation process, and the hydrogen sulfide eliminating agent has low desulfurizing temperature, desulfurizing efficiency up to 99.99 %.

Description

technical field [0001] The invention relates to a high-efficiency remover of hydrogen sulfide at room temperature and a preparation method thereof, in particular to sodium 1-nitroanthraquinone disulfonate, a preparation method and application thereof; belonging to the field of fine chemicals. Background technique [0002] At present, more and more attention has been paid to the research on the treatment of hydrogen sulfide waste gas at home and abroad. The desulfurization method can be divided into dry method and wet method according to its weak acidity and strong reducing property. [0003] The dry method is to use the reducibility and flammability of hydrogen sulfide to desulfurize or directly burn with solid oxidant or adsorbent, including the Claus method, iron oxide method, activated carbon method and Carter Sulph method. [0004] The wet method is divided into two types according to the different desulfurizers used: liquid absorption method and absorption oxidation me...

Claims

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Application Information

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IPC IPC(8): B01D53/52
Inventor 郝爱友张鹏孙涛
Owner SHANDONG UNIV
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