HC Network Petrochemical News: Minimize raw material consumption is related to nitrogen gas firms a important factor in the survival and development, and rational choice and use of high performance scientific ammonia synthesis catalyst is to decrease gas consumption of raw supplies is 1 crucial way. South of the firm by the Institute of Wen County in Henan Province joint development and production of ammonia catalyst plant of A10-1QACQ (cobalt) spherical catalyst, a lot more than a decade soon after the enterprise applications in a quantity of chemical fertilizer have made substantial economic benefits. Former manager of Henan Province, Li Jingxuan fertilizer that spherical ammonia synthesis catalyst to help the fertilizer market to obtain power saving efficiency is a important measure.

According to Li Jingxuan introduced a catalyst for ammonia production and use from the roughly spherical shape up and distinguish the two varieties of non-spherical, compared with other amorphous catalyst, A10-1QACQ (cobalt)-based ammonia synthesis catalyst has ten spherical Positive aspects:

First, lengthy service life. Simply because the catalyst formulation is distinctive not only the ball tough, high strength, uniform size and spherical, easily crushed, so a especially long service life. Chase Merchandise Firm of Henan Province to use A10-1QACQ (cobalt)-type spherical ammonia synthesis catalyst has been five years, and now the catalytic activity is still great.

Second is the “live from the” low temperature, very good low temperature activity. Common A110 catalyst “live from the” temperature of 380 C, while the A10-1QACQ (cobalt)-based ammonia synthesis catalyst spherical initial “live from the” temperature of 340 C, after five years is nonetheless far from the living temperature of 375 C, to boost the net to generate the conditions for ammonia.

Third is ammonia synthesis reactor with high yields. If you use a good catalyst synthesis reactor, its exports of gas in the ammonia content of 12% ~ 14%, the greatest catalyst for up to 16%. Users showed that: A10-1QACQ catalyst in use soon after 5 years, exports of ammonia synthesis reactor content was nonetheless 15.5% ~ 16%. In addition, from into (synthetic) tower circulating gas in the inert gas (CH4, Ar, etc.) components of view, the use of other amorphous catalyst, inert gas is 10% ~ 14%, whilst the use of spherical inert gas after the catalyst can reach 18% 20%, this indicator is at present the leading domestic and international level, so that the feed gas consumption considerably.

Fourth, ammonia synthesis tower resistance. Most factories use amorphous catalyst for the production time of 1 ~ 2 years, need to stop maintenance replacement of the catalyst. The use of spherical catalyst was still less than 5 years right after the resistance of .1MPa, activity practically unabated. Heilongjiang Ning County fertilizer plant 5 years ago to use other amorphous catalyst, almost a year to be replaced when soon after switch A10-1QACQ (cobalt) catalyst, activity of four years continuous use unabated.

5 is a good heat resistance. With General Catalyst as synthetic tower hot 530 C, its activity was drastically decreased, if the use of A10-1Q catalyst, specifically with ACQ (cobalt)-type spherical ammonia synthesis catalyst, when the hot spot to reach or exceed 530 C, right after technical treatment can nonetheless revert to 480 C ~ 490 C, its activity was nearly unaffected, can continue to use.