Neorius | Advanced Refining and Chemical Technologies

Semi-Regenerative Reforming Catalytic Technology

Our semi-regenerative catalyst employs high-purity alumina with low impurity content and an optimal pore structure as the support. By introducing novel promoters and adopting an improved preparation method, the catalyst exhibits low coking rate, high selectivity, excellent activity stability, strong regeneration performance, and broad feedstock adaptability.

The process adopts a dual-layer catalyst loading and dual hydrogen-mixing configuration. Under conditions of relatively low reaction pressure (1.0–1.5 MPa), moderate hydrogen-to-oil ratio, and high severity (RON ≤ 98), the unit can operate continuously for over two years. Compared with similar catalysts, the liquid product yield in terms of octane number is increased by more than 0.5 percentage points. The catalyst can be regenerated at least three times.

Key Features & Benefits

The application of this series of semi-regenerative catalysts enhances the yield of both liquid products and hydrogen in semi-regenerative reforming units. It enables the production of high-octane gasoline blending components or high-value aromatics, extends the operating cycle of the unit, and meets the demand of domestic refineries for high-severity and long-cycle operation. The technology delivers significant economic and social benefits.

This series of catalysts and the dual-layer loading and dual hydrogen-mixing process represent advanced international technology and have been successfully applied in multiple semi-regenerative reforming units both domestically and internationally.

Novel Semi-Regenerative Reforming Catalytic Technology

Traditional reforming catalysts impose stringent requirements on alumina supports, including extremely low impurity levels, strict sulfur exclusion, and precise control over pore structure and acidity. These supports are typically produced from sulfur-free, high-purity aluminum hydroxide powders, whose manufacturing process is highly challenging, making the preparation of suitable alumina a technical bottleneck.

We have developed a sulfur-containing reforming catalyst support using a “controlled-release sulfiding technology,” coupled with proprietary metal dispersion and acidity modulation techniques, resulting in a new generation of reforming catalysts.

By employing a single-layer loading and dual hydrogen-mixing process configuration, the catalyst operates efficiently under low reaction pressure (1.0–1.5 MPa), moderate hydrogen-to-oil ratio, and high severity conditions (RON ≤ 98). It can maintain continuous operation for over two years. Compared with similar catalysts, it can increase the octane yield of liquid products by more than 0.5 percentage points, and the catalyst is regenerable at least three times.

Key Features & Benefits

Low coke formation rate, high selectivity, stable activity, and excellent regenerability.* No additional presulfiding is required at startup, simplifying the commissioning process while improving safety and environmental compatibility.

The catalyst does not require on-site sulfide injection for passivation, reducing risks to operators and the environment, simplifying startup procedures, lowering operational hazards, and shortening the post-feed stabilization period.

The product serves as a high-octane gasoline blending component or a high-value aromatics feedstock, with valuable hydrogen as a co-product, resulting in significant economic benefits.

If you are seeking a solution for a semi-regenerative reforming catalytic unit, our experts are ready to assist you.