Case list

China accounts for over 50% of the global pulp and paper production capacity. By conducting biogasification treatment on the black liquor from papermaking, we can achieve the resource and energy utilization of wastewater and promote environmental friendliness. Koterise is dedicated to researching and engineering the anaerobic fermentation process of wastewater and the separation and purification of biogas, and has accumulated rich experience. Multiple related facilities have been constructed and put into operation, generating 50 million cubic meters of biogas annually.

Keterise Natural Gas and LNG Solutions——From Well to Peak Demand
In the dynamic global energy market, reliable and flexible gas infrastructure is of vital importance. Keterise offers integrated technical solutions for gas purification ,LNG liquefaction, storage and transportation.

Keterise Technical Features:

• Optimized natural gas purification processes such as amine acid removal, molecular sieve dehydration, and activated carbon mercury removal.
• The MRC (Mixed Refrigerant Cycle) refrigeration process integrates variable-frequency compressor units with intelligent cold box control systems.
• The prestressed concrete full containment LNG storage system is equipped with BOG (Boil-Off Gas) intelligent regulation and distributed fiber optic temperature measurement.
• A combined vaporization solution featuring air-heated vaporizers (primary) and submerged combustion vaporizers (backup).

The biogasification of urban domestic Waste and its purification system of biogas in a certain area of Shanghai, designed and constructed by Keterise realizes the resourceful utilization of waste. It has a high biogas conversion rate, produces 80,000 Nm³/d of biogas, and the purified biogas reaches the Class I standard for urban gas.

Keterise continues to optimize the anthraquinone oxidation process for hydrogen peroxide production, aiming to enhance production efficiency, reduce product costs, minimize environmental pollution, and meet diverse customer requirements for product specifications and performance.

Keterise Technical Features:

• The improved catalyst preparation method and carrier materials reduce the regeneration frequency, cutting production costs compared to previous methods.
• The optimized design of the hydrogenation reactor and the oxidation tower enhances the gas-liquid mass transfer effect, improving equipment utilization and production efficiency.
• The precise control of hydrogenation reaction conditions effectively prevents the occurrence of side reactions.

Keterise is dedicated to optimizing production processes. Leveraging proprietary catalytic technology, it achieves significant reductions in consumption and energy use, creating greater value for customers.

Keterise Technical Features:

• Adopts a proprietary carbonylation catalyst system to enhance reaction efficiency and reduce catalyst consumption.
• Optimizes vacuum system and reaction heat utilization to reduce system energy consumption.
• High-efficiency methanol recovery and recycling.

Keterise crude benzene hydrogenation technology achieves deep removal of sulfur, nitrogen, oxygen and other impurities from crude benzene through a proprietary catalyst system, optimized hydrogenation process flow, reaction process control and operational optimization, with high product yield and environmental safety.

Keterise Technical Features:

• Mild reaction conditions, reaction temperature 250~400°C, pressure 2.0~3.0 Mpa.
• Proprietary catalyst system, regular regeneration and replacement.
• Supporting tail gas and wastewater treatment systems for safe and compliant discharge.
• BTX yield greater than 98%.

★Performance Case Ⅱ: A Hydrogen Supply Unit for a Large Polyethylene Project in the Baltic Region

The PSA hydrogen separation and purification unit designed, manufactured by Keterise utilizes the company's newly developed adsorbent materials and optimized process parameters. By increasing the operating system pressure, it ensures high recovery rates while reducing energy consumption by more than 20%.

★Performance CaseⅠ: Hydrogen Recovery from Refinery Off-Gas, Kazakhstan

Customer Challenge: The customer aims to recover hydrogen from the tail gas of a catalytic cracking unit. However, the complex composition of the gas stream and significant pressure fluctuations pose challenges to the recovery rate and stability of traditional PSA technology.

Keterise Solution: An integrated membrane separation + pressure swing adsorption (PSA) unit, where the former achieves preliminary separation and pressure boosting, and the latter provides fine purification, effectively enhancing the recovery rate and operational stability.

Customer Feedback：The Keterise solution exceeded our expectations