Integrated apparatus for preparing ammonium sulfate by virtue of waste acid treatment and operating method of integrated apparatus
A technology for waste acid treatment and integrated equipment, which is applied in chemical methods, chemical instruments and methods, chemical/physical processes, etc. to make liquids react with gaseous media, and can solve the problems of complicated operation and large area of preparation process. Achieve the effect of increasing the reaction time, the uniformity of the reaction and heat release, and the enhancement of the degree of mixing
Active Publication Date: 2015-06-10
TIANJIN UNIV
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[0004] The purpose of the present invention is to provide a new type of integrated equipment for waste acid treatment and preparation of ammonium sulfate and its operation method, which integrates the functions of waste acid dilution, reaction and oil-water separation, and solves the problem of large area occupied by traditional preparation processes and complicated operations. Disadvantages, further reduce the cost of production operations, and prepare ammonium sulfate solution with higher purity and better product phase to obtain ammonium sulfate crystals that meet national standards
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[0028] The following is a detailed description in conjunction with the description of the drawings and the specific operation process:
[0029] The integrated tower equipment involved in the present invention is a tower reactor based on an airlift multi-stage staggered circulation flow tower and a circulation flow structure (CN102716699A). In addition to the inlet and drain part of the tower kettle, the main structure of the whole tower is divided into five parts: from the bottom of the tower to the top of the tower, there are a tower kettle buffer section, a reaction section, an oil-water separation section, an oil production section and a defoaming section. Such as figure 1 As shown, it is expressed as follows:
[0030] The ammonia pipeline (1) is connected to the gas-phase distribution device (2) at the bottom of the tower; the buffer section, reaction section, and oil-water separation section of the tower are all in the form of an inner sleeve, and the inner sleeve (5) is plac...
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The invention provides an integrated apparatus for preparing ammonium sulfate by virtue of waste acid treatment and an operating method of the integrated apparatus. The integrated apparatus is a tower reactor; a tower kettle buffer section, a reaction section, an oil-water separation section, an oil extraction section and a defoaming section are orderly arranged from the tower bottom to the tower top; an exhaust port (13) is formed at the top of the tower, while an extraction outlet (14) is formed in the tower kettle. Coaxial inner sleeves are arranged in all the tower kettle buffer section, the reaction section and the oil-water separation section; ammonia gas enters from a tower kettle ammonia gas pipeline (1) and is reacted with water fed via a water pipeline (8) and waste sulfuric acid in a waste sulfuric acid pipeline (6); an ammonium sulfate solution and a polymerized oil are extracted from the extraction outlet (14) and a polymerized oil extraction outlet (10), respectively. The integrated apparatus is integrated with the functions of waste acid dilution, reaction and oil-water separation; the defects of large floor area, complex operations and the like of the traditional preparation processes are solved; the production operation cost is further reduced; besides, the ammonium sulfate solution relatively high in purity and good in condition is prepared, so that ammonia sulfate crystals conforming to the state standards can be obtained.
Description
Technical field [0001] The invention relates to a novel equipment and method for the preparation of ammonium sulfate by alkylation of waste acid, which has the advantages of integrating waste acid dilution, reaction, flotation and degreasing, etc., and is particularly suitable for the integration of gas-liquid reaction and purification processes. Background technique [0002] With the development of the national economy, the market demand for high-octane gasoline has increased, which makes alkylated oils have broad market potential. However, 80-100kg of waste sulfuric acid with a concentration of 90% is produced for every production of 1 ton of alkylated oil. The waste acid is a colloidal liquid with high viscosity. Its color is black and red, its properties are unstable, and it emits a special smell. The smell is difficult to deal with, causing serious pollution to the ecological environment. In addition to sulfuric acid, its composition also contains 10% of organic matter (pol...
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Login to View More IPC IPC(8): B01J10/00C01C1/242
Inventor 刘春江齐文哲耿洋刘辉
Owner TIANJIN UNIV