Products

Methanol-to-Propylene (MTP) Catalyst

RZMP-101 Methanol-to-Propylene (MTP) Catalyst is jointly developed and industrially produced by Zhongnai Engineering Technology Co., Ltd. and Sinopec Research Institute of Petroleum Processing. This catalyst utilizes MFI-structure molecular sieves as the active component, combined with an active matrix through extrusion molding. It features high propylene selectivity, excellent activity stability, and a long overall service life, effectively enhancing the comprehensive performance of MTP units. The RZMP-101 catalyst is suitable for catalyzing MTP reactions in fixed-bed reactors to achieve high propylene yields. The MTP reaction refers to the process in which methanol, or an equilibrium mixture of methanol and dimethyl ether (formed by partial dehydration of methanol), undergoes dehydration under high-temperature conditions in the presence of a catalyst to produce light olefins, primarily propylene, with by-products including dry gas, LPG, and gasoline fractions. Currently, the MTP catalyst developed and produced by our company has been in normal operation at Datang Inner Mongolia Duolun Coal Chemical Co., Ltd., with stable and reliable performance.

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Diesel Hydrotreating Catalyst

This Ni-Mo type diesel hydrotreating catalyst is prepared using γ-Al₂O₃ as the support, with Mo and Ni as the active components, through the incipient wetness impregnation method. By utilizing special raw materials and incorporating proprietary additives during the preparation process, the stacking layer number of the active component crystallites is concentrated in the range of 2 to 4 layers. On the basis of Type I active sites, additional Type II active sites are introduced, thereby enhancing its hydrogenation activity. This catalyst not only provides sufficient specific surface area for the removal of easily removable sulfur and nitrogen compounds, but also exhibits excellent removal performance for dibenzothiophene (DMDBT). The catalyst is well-suited for the hydrotreating of coker diesel, straight-run diesel, catalytic diesel, and their blended oils, as well as serving as the primary hydrofining catalyst in hydro-upgrading units for inferior diesel feedstocks.

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Diesel-Selective Hydrocracking Catalyst

This diesel-selective hydrocracking catalyst is prepared using the impregnation method, with molecular sieves as the cracking component and Ni and W as the primary hydrogenation components, featuring an optimized ratio of cracking activity to hydrogenation activity. The catalyst is mainly applied in hydrocracking processes designed to maximize diesel production. It offers the advantages of high activity, long service life, high diesel cetane number, and high yield.

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Gas Oil Hydrotreating Catalyst

ZXF-101 Adsorbent is a new product independently developed and scaled up for production by Zhongnai. It is an adsorbent prepared using composite specialty alumina as the raw material, with the addition of inorganic pore-forming auxiliaries. This adsorbent is designed to be used in conjunction with CO sulfur-tolerant shift catalysts, and can be applied in filters installed upstream of sulfur-tolerant shift catalyst units in gasification processes that directly convert residual oil, heavy oil, asphalt, petroleum coke, coal slag, or coal gasification-generated CO-containing gases to produce ammonia synthesis gas, hydrogen, and oxo synthesis gas. This guard material not only possesses high mechanical strength and excellent strength stability, but also features high porosity, enabling effective removal and adsorption of impurities and poisons such as carbon black, tar, and dust from the feed gas. By protecting the sulfur-tolerant shift catalyst, it can significantly extend the service life of the CO sulfur-tolerant shift catalyst. The adsorbent or filtering material can be put into operation by simply raising the temperature to the required operating conditions, without the need for any reduction or sulfidation pretreatment. Its composition is simple, containing no alkali metals and no substances harmful to equipment or human health. The service life of this material depends on the specific operating and process conditions.

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Flexible Hydrocracking Catalyst

This flexible hydrocracking catalyst is prepared using the impregnation method, with highly active molecular sieves as the cracking component and Ni and W as the primary hydrogenation components. The catalyst is relatively sensitive to temperature, allowing flexible switching between maximum naphtha production mode and maximum diesel production mode. It offers the advantages of high activity, long service life, high flexibility, high aromatic potential content in naphtha, high diesel cetane number, and a low BMCI value of the unconverted oil.

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SFB Series CO Sulfur-Tolerant Shift Catalyst

The SFB series CO sulfur-tolerant shift catalysts (high-pressure type) were developed by the National Engineering Research Center for Fertilizer Catalysts at Fuzhou University and manufactured by Zhongnai Engineering Technology Co., Ltd. This series comprises four models: SFB-02, SFB-03, SFB-04, and SFB-05, all of which are products with fully independent intellectual property rights. The performance of these products surpasses that of similar domestic and international counterparts, featuring high mechanical strength, excellent resistance to hydration, unlimited sulfur tolerance, a wide adaptability range for steam/gas ratios, and a broad operating temperature window. They are suitable for hydrogen production processes via shift conversion following pressurized gasification of various feedstocks, including coal, heavy oil, residual oil, and high-sulfur petroleum coke. These catalysts can significantly reduce steam consumption and alleviate the load on downstream processes, achieving economic benefits through energy savings, consumption reduction, and increased production.

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Naphtha-Selective Hydrocracking Catalyst

This naphtha-selective hydrocracking catalyst is prepared using highly active molecular sieves as the cracking component and Ni and Mo as the primary hydrogenation components. The catalyst exhibits very high catalytic activity and is mainly used in hydrocracking processes designed to maximize naphtha production as a chemical feedstock. It offers the advantages of high activity, long service life, high naphtha yield, high aromatic potential content in naphtha, and low gas yield.

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ZXF-101 Adsorbent (Guard Material)

ZXF-101 Adsorbent is a new product independently developed and scaled up for production by Zhongnai. It is an adsorbent prepared using composite specialty alumina as the raw material, with the addition of inorganic pore-forming auxiliaries. This adsorbent is designed to be used in conjunction with CO sulfur-tolerant shift catalysts, and can be applied in filters installed upstream of sulfur-tolerant shift catalyst units in gasification processes that directly convert residual oil, heavy oil, asphalt, petroleum coke, coal slag, or coal gasification-generated CO-containing gases to produce ammonia synthesis gas, hydrogen, and oxo synthesis gas. This guard material not only possesses high mechanical strength and excellent strength stability, but also features high porosity, enabling effective removal and adsorption of impurities and poisons such as carbon black, tar, and dust from the feed gas. By protecting the sulfur-tolerant shift catalyst, it can significantly extend the service life of the CO sulfur-tolerant shift catalyst. The adsorbent or filtering material can be put into operation by simply raising the temperature to the required operating conditions, without the need for any reduction or sulfidation pretreatment. Its composition is simple, containing no alkali metals and no substances harmful to equipment or human health. The service life of this material depends on the specific operating and process conditions.

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Fixed-Bed Residue Hydrotreating Catalyst

This residue hydrotreating catalyst series is independently developed, scaled up, and manufactured by Zhongnai. The full series comprises five models: ZRH-101ASP, ZRH-101ASR, ZRH-201ASR, ZRH-301ASR, and ZRH-401ASR.
The ZRH series residue hydrotreating catalysts are suitable for down-flow fixed-bed processes, such as SINOPEC Fushun Research Institute's S-RHT process, SINOPEC Research Institute of Petroleum Processing's RHT process, and UOP's RCD Unibon process, among others. The ZRH series catalysts meet stringent customer requirements with a minimal number of catalyst types and maximum durability. They operate stably and can accommodate fluctuations in feed oil quality within a certain range, ensuring that product specifications are consistently met with a cycle length of no less than 12 months.
The series catalysts are loaded in a graded configuration, with the first two catalysts being HDM catalysts featuring large pore volumes capable of accommodating sufficient metal deposits. This design prevents pressure drop build-up caused by metal deposition, thereby extending the overall service life of the catalyst series.

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Straight-Run Naphtha Reforming Pre-Hydrotreating Catalyst

This ZNTH-01 type straight-run naphtha reforming pre-hydrotreating catalyst is prepared using special γ-Al₂O₃ as the support and Mo and Ni as the active components, through the co-impregnation method. During the catalyst preparation process, special additives are incorporated to ensure that the active components are highly dispersed on the support surface, avoiding strong interactions between the support and the active components. The resulting active metal precursor states can be fully transformed into active centers with intrinsically high activity during the sulfidation process, which helps to improve the effective utilization of hydrogenation active metals and thereby enhances the catalytic performance of the catalyst. This catalyst is suitable for use as a refining catalyst for reforming pre-hydrotreating feedstocks, including straight-run naphtha, hydrocracked naphtha, and blended oils containing a certain proportion of catalytic naphtha.

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Zhongnai Engineering Technology Co., Ltd..

"The road ahead is long and winding, yet I will search high and low." This is the spirit of Zhongnai. By continuously enhancing our technical service capabilities and independent innovation capabilities, and strengthening the commercialization of scientific and technological achievements, we strive to become a leading technology R&D and service company in the domestic chemical industry.

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