US 12,391,562 B2
Preparation device and preparation method of ammonia gas
Qi Wang, Beijing (CN); and Changjun Yu, Beijing (CN)
Assigned to YUANCHU TECHNOLOGY (BEIJING) CO., LTD., Beijing (CN)
Appl. No. 17/426,744
Filed by YUANCHU TECHNOLOGY (BEIJING) CO., LTD., Beijing (CN)
PCT Filed Aug. 12, 2019, PCT No. PCT/CN2019/100143
§ 371(c)(1), (2) Date Jul. 29, 2021,
PCT Pub. No. WO2020/155603, PCT Pub. Date Aug. 6, 2020.
Claims priority of application No. 201910084166.9 (CN), filed on Jan. 29, 2019.
Prior Publication US 2022/0098048 A1, Mar. 31, 2022
Int. Cl. C01C 1/02 (2006.01); B01J 8/18 (2006.01); B01J 8/26 (2006.01); B01J 8/36 (2006.01)
CPC C01C 1/026 (2013.01) [B01J 8/1827 (2013.01); B01J 8/1836 (2013.01); B01J 8/26 (2013.01); B01J 8/36 (2013.01); B01J 2208/0053 (2013.01); B01J 2208/00752 (2013.01); B01J 2208/0084 (2013.01); B01J 2208/00902 (2013.01); B01J 2208/00938 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A preparation device of ammonia gas, configured to prepare ammonia gas by reacting ammonium chloride with a particulate inorganic salt, comprising a fluidized bed reactor, the fluidized bed reactor comprising:
at least one preheating chamber, configured to preheat the particulate inorganic salt;
at least one reaction chamber, configured for the particulate inorganic salt to contact and react with an aqueous solution of ammonium chloride to generate the ammonia gas, wherein the at least one preheating chamber has a smaller cross-sectional area than that of the at least one reaction chamber, so that an empty bed gas velocity of carrier gas in the at least one preheating chamber is higher than an empty bed gas velocity of the carrier gas in the at least one reaction chamber;
at least one deflector, the at least one preheating chamber and the at least one reaction chamber are alternately arranged longitudinally, and the at least one deflector is located between a preheating chamber and a reaction chamber that are adjacent to each other to separate the preheating chamber and the reaction chamber that are adjacent to each other; and
at least one atomizing nozzle, located in the at least one reaction chamber, configured to atomize the ammonium chloride aqueous solution,
wherein the carrier gas is introduced into the at least one preheating chamber and the at least one reaction chamber to cause the particulate inorganic salt to form a fluidized particulate bed layer, and the empty bed gas velocity of the carrier gas in the at least one preheating chamber is higher than the empty bed gas velocity of the carrier gas in the at least one reaction chamber, so that a particulate bed layer density in the at least one preheating chamber is smaller than a particulate bed layer density in the at least one reaction chamber,
the at least one preheating chamber comprises a plurality of preheating chambers and the at least one reaction chamber includes a plurality of reaction chambers,
in a preheating chamber of the plurality of preheating chambers and a next adjacent reaction chamber of the plurality of reaction chambers adjacent to and after the preheating chamber, a bottom of the preheating chamber and a bottom of the next adjacent reaction chamber are not connected each other, and a height of the at least one deflector between the preheating chamber and the next adjacent reaction chamber is lower than a height of the particulate bed layer in the preheating chamber and the next adjacent reaction chamber;
in the preheating chamber of the plurality of preheating chambers and a previous adjacent reaction chamber of the plurality of reaction chambers adjacent to and in front of the preheating chamber, a bottom of the preheating chamber and a bottom of a previous adjacent reaction chamber are connected each other, and a height of the at least one deflector between the preheating chamber and the previous adjacent reaction chamber is higher than a height of the particulate bed layer in the preheating chamber and the previous adjacent reaction chamber.