The invention belongs to the technical field of
sulfur-tolerant shift in
coal chemical industry, and particularly relates to a high-pressure low-
sulfur-tolerant shift catalyst and a preparation methodthereof, wherein the catalyst comprises a carrier and an
active component, the
active component is selected from a
binary component of
cobalt oxide and
molybdenum oxide, the raw materials of the carrier are selected from a
magnesium-containing compound, an aluminum-containing compound, a
titanium-containing compound and a heat-treated modified
montmorillonite. According to the present invention,
montmorillonite with characteristics of wide source and low cost is subjected to heat
treatment modification to be used as the carrier component so as to reduce the catalyst preparation cost; the
montmorillonite is subjected to heat treatment so as to avoid the treatment of the waste acid solution; the product is prepared by the mixing kneading method, such that the
active components are uniformlydispersed in the carrier and are not easily lost so as to increase the activity stability of the catalyst; and compared with the impregnation method in the prior art, the method of the present invention has the following advantages that the
water consumption is saved, the preparation process and the operation process are simplified, the cost
advantage is remarkable, and the prepared catalyst hasgood shift activity and good activity stability under low
sulfur condition, and further has good
economic benefits and popularization and application prospects.