Pre-reduced ammonia synthesis catalyst,

AC-01H is features as easy reduction, higher activity, good performance at low temperature, wide range of applicable pressure .

Pre-reduced ammonia synthesis catalyst

I. Introduction

AC-01H pre-reduction catalyst is produced through reduction and stabilization under the condition of excellent reduction temperature and pressure for Ferrous oxide base catalyst on special pre-reduction plant by using high activity AC-01 Ferrous oxide base catalyst. Over several decades, all pre-reduced ammonia synthesis catalysts are made by reduction and stabilization treatment from traditional Fe3O4 base oxide ammonia synthesis catalyst. Compared with traditional ammonia synthesis catalyst, the outstanding features of AC-01H catalysts have such outstanding features as: high catalytic activity, high activity at low temperature and low pressure, easy activation, starting activity at very low temperature, early producing ammonia and good performance for heat resistance and anti-toxicity.

There are many advantages for using AC-01H pre-reduced catalysts. Save startup time for customers production; simplify the reduction activation for customers, easy operation and control, eliminate the unreliability for the doubtfulness of the success of reduction, good for improving catalyst reduction quality, in addition to that, save a lot of power and raw materials for ammonia plants, reduce the low concentration ammonia liquid effluent from the process of the reduction. Applying the high activity AC-01H catalyst can give many benefits to customers from the view of energy and consumption savings.

AC-01H catalyst is low temperature (low pressure), high activity, wide range temperature of energy-saving ammonia synthesis catalyst. AC-01 oxidation catalyst is used together with AC-01H pre-reduced catalyst can meet the customers requirement of getting better results to make significant economic efficiency.

II. Application

AC-01H catalyst are mainly used for synthesize ammonia from mixture of hydrogen and nitrogen in the ammonia industry and also used for ammonia cracking to make purified hydrogen and nitrogen. AC-01H catalyst is pre-reduced catalyst. Its reduction period is only 20% - 30% of the AC-01.

 AC-01H catalyst are applicable for various kinds of converters, including large, medium and smaller scale of the ammonia plants.

AC-01H can be used at all industrial range pressures. It is suitable for all kinds of high and low pressure flows, especially for medium and low pressure ammonia synthesis converters. Its operating temperature can be reduced with the pressures lowering.

III. Physical Properties and Chemical Composition:

3.1 The main compositions of AC-01 catalyst are FeO and balanced aluminum oxide, potassium oxide and calcium oxide and other trace co-catalysts.

3.2 The appearance of AC-01 is bright black irregular granules with no magnetic feature. The particles size are 1.5 3.0mm, 2.2-3.3mm, 3.3-4.7mm, 4.7-6.7mm, 6.7-9.4mm, 9.4 13.0mm and 3-6mm, 4.5 8mm, 6 10mm, 8 12mm and etc. The granules size can be customized as per customers requirements. This serial products are produced by using angle grinding process, which is good for lowering bed pressure drop and can minimize the catalyst broken rate.

3.3 T The bulk density of AC-01H is 2.2 2.5 kg/L. The bulk density may be a little bit larger when the granules size increasing.

3.4 The main components of AC-01H pre-reduced catalyst are active α-Fe through reduction of oxidized FeO. The co-catalysts are same as oxidized AC-01 as aluminum oxide, potassium oxide and calcium

Pre-reduced ammonia synthesis catalyst,