Sulfur-tolerant shift catalyst of sulfide

China's abundant coal resources, raw materials, oil, residual oil content is high, due to Therefore, the development of residual oil or coal as raw materials, production of sulfur-tolerant shift process Such as synthesis gas or ammonia smell with a wide prospect. China in the World 2O Century began in the late 7O sulfur-resistant shift catalyst research and development Work, have developed a variety of types of sulfur-tolerant shift catalyst, And successfully applied to the fertilizer industry, has achieved remarkable economic benefits.

Currently, the Marina has been developed inside and outside the radium series of cobalt a sulfur-resistant shift catalyst Of i} wow, its performance can be divided into two categories: one category is applicable to high pressure (about & 0 MPa) and high-vapor-gas ratio (about 1.4) the conditions of sulfur-resistant shift in temperature Catalytic cut (Co-Mo/MgO-Al 03); the other is for Low (less than 3.0 MPa) at low temperature sulfur-tolerant shift catalysts (Co-Mo-K/Al203).

Li sulfur-tolerant shift catalysts are mostly used Co, Mo metal elements Active component, and dispersed in the porous oxide carrier state. A large number of test Test results show that the catalytic activity of cutting sulfide phase state, that is the catalyst In the use of Gracilaria must be vulcanized, cut and hydrogen sulfide present in the Under the active component of sulfide oxidation state into the state. Therefore, the catalytic Cut-resistant drums curing technology is changing the key catalytic steps of cutting applications A , Which directly affects the catalytic activity and stability of the transformation of Jing. Sulfur Of warming good or bad, will directly affect the conversion section in the production load, The quality of the feed gas and steam consumption indicators.