公开(公告)号：US20230080405A1

公开(公告)日：2023-03-16

申请号：US17546786

申请日：2021-12-09

Applicant: Kunming University of Science and Technology

Inventor： Senlin Tian ,  Guoqiang Chen ,  Ping Ning ,  Xiaosong Yang ,  Linan Shao ,  Zhilong Zhao

IPC: B01D53/00 ,  B01D46/02 ,  B01D5/00

Abstract: A method for treating arsenic-containing flue gas is disclosed. In the method, the arsenic-containing flue gas is subjected to a dry pre-dedusting treatment, and the dedusted flue gas is pre-cooled and then introduced into a vortex quenching system. The arsenic-containing flue gas is divided into high-temperature flue gas and low-temperature flue gas through the vortex quenching system. The outlet temperature of the low-temperature flue gas is dropped below the desublimation temperature of gaseous arsenic trioxide. The low-temperature flue gas is subjected to a gas-solid separation to obtain solid arsenic trioxide and treated flue gas.

公开(公告)号：US12097461B2

公开(公告)日：2024-09-24

申请号：US17546786

申请日：2021-12-09

Applicant: BGRIMM TECHNOLOGY GROUP ,  Kunming University of Science and Technology

Inventor： Guoqiang Chen ,  Senlin Tian ,  Ping Ning ,  Xiaosong Yang ,  Linan Shao ,  Zhilong Zhao

IPC: B01D53/00 ,  B01D5/00 ,  B01D46/02

CPC classification number: B01D53/002 ,  B01D5/0021 ,  B01D5/0072 ,  B01D46/02

Abstract: A method for treating arsenic-containing flue gas is disclosed. In the method, the arsenic-containing flue gas is subjected to a dry pre-dedusting treatment, and the dedusted flue gas is pre-cooled and then introduced into a vortex quenching system. The arsenic-containing flue gas is divided into high-temperature flue gas and low-temperature flue gas through the vortex quenching system. The outlet temperature of the low-temperature flue gas is dropped below the desublimation temperature of gaseous arsenic trioxide. The low-temperature flue gas is subjected to a gas-solid separation to obtain solid arsenic trioxide and treated flue gas.