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Coal chemical solution

Coal chemical solution

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Methanol synthesis catalyst

New XDJ-1 methanol synthesis catalyst is extensively used in methanol factories of various manufacturing processes, including Lurgi process technology, ICI process technology and other medium and low-pressure processes. The catalyst has a higher activity, higher yield rate and CO conversion ratio, higher thermal stability, lower thermal sensitivity, higher heat resistance, longer working life, higher selectivity, higher content of methanol in crude methanol, fewer organic byproducts, wider scope of applications, easier reduction and operation, higher intensity, lower degree of catalyst pulverization and lower pressure drop and can help increase the outputs of methanol factories.


F-T synthesis

Fischer-Tropsch synthesis catalyst: F-T synthesis is a process where the synthetic gases are transformed into hydrocarbons through catalytic reactions and mainly includes the reactions that generate alkane and alkene, the generation of oxygen-containing compounds and the reaction of water-gas shift (WGS). The reactants of F-T synthesis may be transformed from coals, natural gases or biomasses through the process of gasification or reforming. The hydrocarbons generated through F-T synthesis contain no sulfur, nitrogen and arene. Therefore, the liquid fuels (e.g. clean diesel oils) generated from F-T synthesis can satisfy the ever-stringent environment protection requirements. Meanwhile, the products of F-T synthesis may also be essential raw materials of low-carbon alkene and other modern chemical processes. Therefore, F-T synthesis is one essential step for indirect conversion of coals, natural gases, biomasses and other non-oil-based resources into high-grade liquid fuels and chemical raw materials. XDFT-01 catalyst can increase CO conversion ratio to 90% and the oil yield rate may reach 155g/Nm3 for each cubic meter of synthesis gases.


Sulfur tolerant shift

Sulfur tolerant shift: XDB-1 low-temperature sulfur tolerant shift catalyst is mainly used for the low-temperature shift reaction of sulfur-containing water gases or semi-water gases for the production of hydrogen or synthetic gasses. The product is applicable for not only some of the oxidation-based gas generation process that has coals or heavy oils as the raw materials, but also the medium-shift-to-low-shift or fully-low-shift technical process flow of small and medium-size fertilizer factories in China. The catalyst has the following features:

(1) It can save energies and simplify process as it reduces the reaction temperature of the whole conversion system upon total-low-temperature conversion process technology.

(2) It increases the CO conversion ratio and hence can increase the outputs of hydrogen and synthetic ammonia.

As the conversion system has a high conversion ratio and a low CO content, the copper washing load and the various consumptions associated therewith are reduced.

XDB-2 high-temperature conversion catalyst is applicable for the CO conversion and hydrogen generation process in the ammonia synthesis, methanol synthesis and petrochemical industry. The catalyst is also applicable for various energy-saving procedures that have natural gases, naphtha, residual oils and coals as the raw materials. The product has many outstanding features, including excellent low-temperature activity, high strength, low sulfur content and high resistance to sulfur. Its main features are described as follows:

1. Excellent low-temperature activity: a high CO conversion capacity is already available when the bed inlet has a temperature of 300℃.

2. High energy efficiency: it reduces the vapor-gas ratio at the inlet of the conversion furnace and hence saves substantial vapor consumptions.

3. High strength: it has a strength of over 250N/cm after reduction, up by more than 20% on the average.

4. The body has a low sulfur content (S<=0.025%) and a short time of reduction and sulfur release.

5. High resistance to sulfur: the feed gases have a long-term sulfur content (based on H2S) of not over 300 mg·Nm-3 and a short-term sulfur content of not over 1,000 mg·Nm-3


Mathanol to propylene MTP

XDMTP-01 catalyst for production of propylene with methanol has special molecular sieves as its main active component and also contains special additives. The product has high methanol conversion ratio and propylene selectivity and is extensively used on the fixed bed for the production of propylene with methanol in the coal chemical industry. The catalyst has a methanol conversion ratio of 99% and a propylene selectivity of at least 37% at a temperature of 400 to 500℃ and under a pressure of 0.13MPa.


Sulphur recovery

Xudna has many experiences in treating H2S generated from coal chemical process, the company able to provide claus process optimization and excellent quality sulphur recovery catalyst.

Classic customer: Shenhua coal to oil SRU (Fist Coal chemial units in China)