US 12,251,660 B2
Hydrolysis reaction device for dechlorination and decyanation of blast furnace gas
Tingyu Zhu, Beijing (CN); Yuran Li, Beijing (CN); and Bin Wang, Beijing (CN)
Assigned to Institute of Process Engineering, Chinese Academy of Sciences, Beijing (CN)
Filed by Institute of Process Engineering, Chinese Academy of Sciences, Beijing (CN)
Filed on Dec. 1, 2023, as Appl. No. 18/526,464.
Claims priority of application No. 202211549750.5 (CN), filed on Dec. 5, 2022.
Prior Publication US 2024/0181389 A1, Jun. 6, 2024
Int. Cl. B01D 53/75 (2006.01); B01D 53/04 (2006.01); B01D 53/48 (2006.01); B01D 53/68 (2006.01); B01D 53/82 (2006.01)
CPC B01D 53/75 (2013.01) [B01D 53/0423 (2013.01); B01D 53/48 (2013.01); B01D 53/685 (2013.01); B01D 53/82 (2013.01); B01D 2251/404 (2013.01); B01D 2251/602 (2013.01); B01D 2253/102 (2013.01); B01D 2253/104 (2013.01); B01D 2253/3425 (2013.01); B01D 2257/2025 (2013.01); B01D 2257/30 (2013.01); B01D 2257/408 (2013.01); B01D 2258/025 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A hydrolysis reaction device for dechlorination and decyanation of blast furnace gas, wherein the hydrolysis reaction device comprises a cylinder body, wherein a top of the cylinder body is provided with an air inlet channel, and a bottom of the cylinder body is provided with an air outlet channel, and functional zones are arranged in the cylinder body; the functional zones are sequentially an air inlet zone, a first protective agent zone, a first transition zone, a second protective agent zone, a second transition zone, a hydrolysis zone and an air outlet zone along a gas flow direction, and adjacent functional zones are communicated; and feed holes and discharge holes are uniformly arranged on an outer side surface of the cylinder body;
wherein the first protective agent zone is filled with a dechlorination agent; the dechlorination agent is a composite metal oxide dechlorination agent; the composite metal oxide dechlorination agent is a calcium oxide-zinc oxide composite dechlorination agent or an aluminum oxide-copper oxide composite dechlorination agent; and the dechlorination agent is any one or a combination of two or more of spherical, cylindrical or honeycomb;
wherein the second protective agent zone is filled with adsorbent; the adsorbent is any one or a combination of two of activated carbon and alumina; and the adsorbent is any one or a combination of two or more of spherical, cylindrical or honeycomb;
wherein the hydrolysis zone is filled with a hydrolyzing agent; the hydrolyzing agent is any one or a combination of two of alumina and zinc oxide; and the hydrolyzing agent is any one or a combination of two or more of spherical, cylindrical or honeycomb; and
wherein a diameter ratio of the first protective agent zone, the second protective agent zone and the hydrolysis zone is (0.65-0.85):1:1, a height ratio of the first protective agent zone, the second protective agent zone and the hydrolysis zone is (0.55-0.75):(0.65-1):1, a volume space velocity of the first protective agent zone is 1200-3600 h−1, a volume space velocity of the second protective agent zone is 870-3000 h−1, and a volume space velocity of the hydrolysis zone is 550-2500 h−1.