公开(公告)号：US3945904A

公开(公告)日：1976-03-23

申请号：US441103

申请日：1974-02-11

Applicant: James Ray Robison

Inventor： James Ray Robison

IPC: B01D53/50 ,  B01D53/52 ,  B01J12/00 ,  B01J19/00 ,  C01B17/04 ,  G05D21/02 ,  G01N27/42

CPC classification number: G05D21/02 ,  C01B17/0452

Abstract: An improved and modified Claus process control system utilizing first and second coulometric titrators for automatically controlling the amount of oxygen used in burning a portion of the hydrogen sulfide (H.sub.2 S) in flue gases. The first and second titrators are fed sulfur dioxide (SO.sub.2) and H.sub.2 S scrubbed samples, respectively, of the flue gases downstream of the oxygen injection point. The first and second titrators produce H.sub.2 S and SO.sub.2 analog output signals, respectively, which are used to control the rate of flow of oxygen or air injected in a manner such that the samples of the flue gases contain H.sub.2 S in a concentration which is approximately or exactly equal to twice the concentration of the SO.sub.2 therein.

Abstract translation: 改进和改进的Claus过程控制系统，利用第一和第二库仑滴定仪来自动控制燃烧烟道气中硫化氢（H2S）中一部分的氧气的量。 第一和第二滴定仪分别为氧气注入点下游的烟道气供给二氧化硫（SO2）和H2S洗涤样品。 第一和第二滴定仪分别产生H2S和SO2模拟输出信号，这些信号用于以这样的方式控制氧气或空气的流动速率，使得烟道气的样品含有大约或精确的浓度的H 2 S 等于其中SO 2浓度的两倍。