Ammoniating method for solid ammonia storage tank

Abstract

The invention relates to an ammoniating method for a solid ammonia storage tank. The ammoniating method is characterized in that in the specific ammoniating process, ammonia passages, namely a gas inlet and a gas outlet, are formed in the upper end and the lower end of the solid ammonia storage tank to be ammoniated; hoisting equipment is utilized to place the solid ammonia storage tank on an ammoniating rack at an inclination angle of 45 degrees, and the gas inlet is enabled to face downwards; the lower end of the solid ammonia storage tank is in flanged connection with a cooling liquid water inlet pipeline, the upper end of the solid ammonia storage tank is connected with a water outlet pipeline, and the temperature of a cooling liquid is kept at 10-15 DEG C; the gas inlet in the lower end of the solid ammonia storage tank is connected with a gas inlet pipeline, and the gas outlet in the upper end of the solid ammonia storage tank is connected with an ammonia recovery device through a gas outlet pipeline, and then the gas inlet and the gas outlet are opened for ammoniating; and after ammoniating for 5 h, cold bathing is performed on the solid ammonia storage tank at 20-25 DEG C, and static adsorption is conducted for 10-15 h. According to the ammoniating method, the ammoniating time can be shortened, ammoniating is quickened, the ammoniating efficiency is improved and the ammoniating quality is guaranteed.

Description

technical field [0001] The invention relates to an ammonia charging method for a solid ammonia storage tank, belonging to the technical field of automobile tail gas treatment systems. Background technique [0002] With the progress of the economy and society, the rapid development of the automobile industry, the rapid increase in the number of automobiles, the environmental pollution caused by automobile exhaust is also becoming more and more serious. Therefore the purification problem of automobile tail gas, is subjected to people's attention day by day. [0003] The automobile exhaust gas treatment system stores ammonia gas in solid particles and releases it when needed, and removes NOx hazards after reacting with the catalyst, which has achieved the purpose of purifying the exhaust gas. The method is safe, reliable, low in cost and long in cruising range. [0004] However, during the ammonia filling process of the solid ammonia storage tank, there are situations such as...

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Problems solved by technology

[0004] However, during the ammonia filling process of the solid ammonia storage tank, there are situations such as long ammonia filling time, slow speed, low efficiency, and difficulty in controlling the amount of ammonia filling, which affects the quality of the solid ammonia storage tank and is not suitable for mass production.

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