Issue 31/2013 - CO isothermal conversion technology advances into the coal-to-gas sector

CO isothermal conversion technology has advanced into the field of coal-to-gas

CO isothermal conversion technology independently developed by Hunan Anchun High-tech Co.
, Ltd.
was recently successfully started up in the methanol to ammonia synthesis plant of Shanxi Yangmei Fengxi Fertilizer Industry Linxi Branch, and the device has been running stably for more than ten days, and the detection effect has met the design requirements
.
This technology has been successfully industrialized in
the field of high-concentration CO conversion of coal-to-syngas.

The traditional CO conversion technology is a multi-stage adiabatic reaction technology, which is difficult to apply to the transformation
of high-concentration CO gas.
If the CO concentration is above 65%, the change reaction will be very drastic, and the reaction temperature is difficult to control
.
In addition, traditional technology usually needs to use 4~5 conversion furnaces, equipped with complicated temperature control and heat exchange equipment in the middle, not only the reaction process is long, the system resistance is as high as 0.
4~0.
6 MPa, and the operation is also difficult
.

Liu Yalong, deputy general manager of Yangmei Fengxilinxi Branch, told reporters that Hunan Anchun CO isothermal conversion technology has significant advantages compared with traditional technology: First, the CO conversion rate is more than 98%, which improves the utilization rate of raw gas and reduces production costs; Second, the isothermal transformation principle of aqueous phase heat transformation is adopted, and the heat is removed while reacting, and the bed reaction temperature is low, stable and the temperature difference is small, which prolongs the service life of the catalyst; Third, the operating resistance of the reaction bed is small, only 22~25 kPa, and the catalyst utilization rate is high; Fourth, the conversion furnace adopts a suspended water tube reactor, which overcomes the influence of
thermal expansion and contraction on the safety and stability of equipment operation.

(Li Ke)