Total low-temperature conversion of carbon monoxide

The increased carbon monoxide content in the outlet section may be due to the following reasons: 1. A sudden increase or decrease in operating temperature, with large and frequent temperature fluctuations； 2 The space velocity is too high, resulting in overproduction ； 3 Due to fluctuations in steam pressure and system pressure, too little steam is added ； 4 Catalyst poisoning, deactivation, aging, caking, crushing and pulverization, gas bias flow ； 5 water is introduced into the catalyst layer, causing a significant drop in bed temperature ； The equipment No. 6 malfunctions; the common fault is corrosion and perforation of the tubes in the heat exchanger, allowing semi-water gas to leak into the shift gas ； If the level of the water seal between the saturated tower and the hot water tower is too low, or if the pressure difference between them is too large, semi-water gas will flow from the saturated tower through the water seal and into the hot water tower ； 7 Improper operation. If the amount is increased too rapidly and excessively, without timely adjustment of the steam supply volume ； The steam supply volume was not adjusted in a timely manner when system pressure and steam pressure fluctuated ； When the catalyst bed temperature drops excessively, significantly reducing the steam volume leads to an excessively low vapor-to-solid ratio in the bed.