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Method for removing organic oxygenated chemicals in water

A technology of organic compounds and compounds, applied in chemical instruments and methods, water pollutants, water/sewage treatment, etc., can solve problems such as impracticality, loss of market competitiveness, and large energy consumption

Inactive Publication Date: 2014-01-08
CHNA ENERGY INVESTMENT CORP LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0014] However, the existing methods disclosed in the above-mentioned documents either have strict requirements on the concentration of organic oxygen compounds in wastewater, such as fermentation of microbial fungus substances, or require a large amount of energy consumption, such as distillation, gas stripping and oxidation etc. Therefore, these methods are not practical in terms of economy and efficiency, because their implementation costs are so high that they lose their market competitiveness

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  • Method for removing organic oxygenated chemicals in water
  • Method for removing organic oxygenated chemicals in water
  • Method for removing organic oxygenated chemicals in water

Examples

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Embodiment 1

[0058] Take 75 grams of Fischer-Tropsch process wastewater, whose chemical oxygen demand (COD) is 219,793, and adopt the method of the present invention to remove organic oxygen-containing compounds therein.

[0059] In this embodiment, the method of the present invention adopts the following process conditions: reaction temperature: 220-310° C.; reaction pressure: 70-140 atmospheres; reactor: laboratory-scale batch reactor; reaction time: 120 minutes.

[0060] In this example, the catalysts used are shown in Table 1 and Table 2, and the catalysts were heated by H at 400°C 2 reduction.

[0061] First, place the catalyst in the Fischer-Tropsch process wastewater at room temperature, and use nitrogen to pressurize to 1-40 atmospheres, after that, heat the reactor to 220°C or 310°C, the residence time of the Fischer-Tropsch process wastewater in the reactor After cooling the reactor for 120 minutes, the gas phase product and the liquid phase product were taken out and analyzed r...

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Abstract

The invention discloses a method for removing organic oxygenated chemicals in water. The method includes the following step that under the action of a catalyst, the organic oxygenated chemicals in the water are enabled to be subjected to aqueous-phase reforming reaction at the temperature of 100-350 DEG C and under atmospheric pressure of 1-250, so that the organic oxygenated chemicals in the water is changed into gaseous products to be removed from water. The method can be used for treating organic oxygenated chemical waste water produced by Fischer Tropsch, processes for preparing light olefin, arene and gasoline from the organic oxygenated chemicals, and other production processes.

Description

technical field [0001] The invention relates to a method for removing organic oxygen-containing compounds in water, in particular to a method for removing organic oxygen-containing compounds in water through a water phase reforming reaction. Background technique [0002] A lot of industrial production will produce a certain amount of waste water, which contains various substances harmful to the environment. Before the waste water is reused or discharged, these harmful substances need to be removed or separated from the waste water. [0003] Wastewater containing a certain amount of organic oxygen compounds is a typical waste water in the field of coal chemical industry. With the increasingly stringent national environmental protection standards and the rise of people's environmental awareness, the treatment of this kind of waste water has increasingly become a topic of interest to researchers. . [0004] The process of preparing synthetic fuel by Fischer-Tropsch reaction an...

Claims

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Application Information

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IPC IPC(8): C02F1/58C02F101/34
Inventor 刘社田朱庆军刘斌张锐蒋明哲孙琦
Owner CHNA ENERGY INVESTMENT CORP LTD
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