Abstract
A technology has been developed for preparing a catalyst for primary reforming of natural gas of complex geometric shape, cylindrical with one hole and external grooves, by impregnating the support with a solution of nickel nitrate and aluminum nitrate at a ratio of NCl(NO3)2: Al (NO3)3 = 3: 1. The carrier was obtained from mixtures consisting of alumina, calcium hydroxide with the addition of wood flour or graphite. The residual methane content at 7000°, the space velocity of 6000 g-1, the ratio of gas = (2.0 ÷ 2.2): 1 does not exceed 5–7%, and the mechanical crushing strength along the tertz is at least 18 MPa. The decrease in hydraulic resistance in the catalyst bed and the simultaneous increase in the geometric and specific surface of the catalyst granules can dramatically increase the performance of the units or while maintaining the gas load, reduce the cost of compression, significantly increase the service life of the reaction tubes. The GIAP-16 catalyst is more refractory than the GIAP-5 and 2 grades are produced: Grade A based on aluminum oxide and Grade B based on aluminum hydroxide. Production technology is reduced to the following operations.
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