Recycling device for synthetic condensate liquid and method thereof
A technology for the recovery of condensate and sulfur, applied in separation methods, chemical instruments and methods, and dispersed particle separation, etc., can solve the problem of high operating costs, and achieve the effects of reducing environmental protection pressure, improving absorption capacity, and reducing SO2 content.
Inactive Publication Date: 2015-11-11
ANHUI HUAIHUA
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Problems solved by technology
In addition, if the pH is to be continuously ensured, a large amount of lye is required, and the operating cost of the device is relatively high.
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[0021] Such as figure 1 As shown, a synthetic condensate recycling device includes a first-stage inlet separator 1 and a second-stage inlet separator 2 arranged at the inlet of the compressor in the ammonia synthesis process, and a sulfur recovery device 11 for the direct oxidation of sulfur , the liquid outlets of the one-stage inlet separator 1 and the second-stage inlet separator 2 are all connected with the secondary sedimentation tank 7, and the secondary sedimentation tank 7 is connected with the primary Venturi 3 through the submerged pump 10, and the The inlet of the first-stage Venturi 3 is connected to the tail gas outlet of the sulfur recovery device 11, the outlet of the first-stage Venturi 3 is connected to the tail gas separator 5, and the liquid outlet of the tail gas separator 5 is connected to the first-stage sedimentation tank 6 The primary sedimentation tank 6 and the secondary sedimentation tank 7 are connected through a filter plate 8 .
[0022] In a furt...
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The invention provides a recycling device for synthetic condensate liquid and a method thereof. The device comprises a first-section inlet separator and a second-section inlet separator which are arranged at the inlet of a compressor applied in synthetic ammonia process, and a sulfur recovery unit applied in direct oxidation process of sulfur, wherein the fluid outlet ends of the first-section inlet separator and the second-section inlet separator are both connected with a second-stage sedimentation pool which is connected with a first-stage venturi via a submerged pump; a gas inlet of the first-stage venturi is connected with a tail gas outlet of the sulfur recovery unit; an outlet of the first-stage venturi is connected with a tail gas separator; the fluid outlet end of the tail gas separator is connected with the first-stage sedimentation pool; and the first-stage sedimentation pool and the second-stage sedimentation pool are in connection via a filter plate. According to the invention, ammonia nitrogen of condensate water in synthetic ammonia process gases is utilized to maintain a pH value of washing water, and sulfur-contained tail gas in the sulfur recovery unit applied in the direct oxidation process is washed, so purposes of reducing temperature of the tail gas and washing off sulfur and SO2 entrained in the tail gas are achieved.
Description
technical field [0001] The invention relates to a synthetic condensate recycling technology, in particular to a synthetic condensate recycling device and method thereof. Background technique [0002] In the ammonia synthesis process supporting the methanation process, a large centrifugal compressor is generally equipped. In order to prevent the process gas from entering the compressor with water, it is necessary to install an inlet separator at the inlet of each compressor to separate the process gas. Condensate entrained in. Because the condensed water contains high ammonia nitrogen, due to environmental protection requirements, the ammonia nitrogen content in the condensed water must be treated to meet the standard before it can be discharged, thereby increasing the overall operating cost of the device. [0003] In the direct oxidation of sulfur, H 2 S and O in air 2 Under the action of the catalyst, the direct reaction produces gaseous elemental sulfur and water. Sin...
Claims
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Inventor 余东洋刘堃
Owner ANHUI HUAIHUA