Advanced and Energy-saving Ratio Control Strategy in Mass Synthetic Ammonia Unit;

Caculation of available energy of the low temperature flue gas in the primary reformer of ammonia;

A secondary development of ammonia process on line simulation system;

Study on impregnation mechanism and condition of Ru/AC ammonia synthesis catalyst;

Evaluation of iron catalyst coupled with ruthenium tandem catalyst in ammonia synthesis;

Study on the preparation of magnesia-active carbon supported ruthenium-based catalysts for ammonia synthesis;

Process conditions for methanolization and methanation purification of ammonia synthesis feed gas;

Modification of cooling water process in ammonia synthesis;

Wustite as new precursor of industrial ammonia synthesis catalysts;

This thesis describes the existing problems and process solutions to the low load hydrogen production converted from the synthesis ammonia unit.

The natural gas consumption in the existing synthesis ammonia system is diagnosed and the optimized plans are proposed.

For common condensation separation of synthesis ammonia, the energy consumption not only is high, but it is disadvantageous that the synthetical pressure is decreased largely.