Tianjin Langxing: Providing dynamic hybrid core equipment for green aviation kerosene (SAF) production
Sustainable aviation fuel (SAF) is the core pathway for decarbonization in the aviation industry. In mainstream SAF processes such as HEFA hydrogenation, ATJ alcohol production, and FT Fischer Tropsch synthesis, key processes such as hydrogenation gas-liquid mass transfer, synthesis gas fine mixing, wax catalyst suspension, and product blending place extreme demands on the mass transfer efficiency and industrial reliability of the mixing equipment. The Tianjin Langxing NDM series dynamic mixer provides a high-strength, low-energy, and continuously operable mixing solution for SAF devices through high shear of the fixed rotor, millisecond level homogenization, and industrial grade sealing.
Dynamic mixer: gas-liquid mass transfer enhancement in HEFA/ATJ hydrogenation section
Before the HEFA hydrogenation deoxygenation and ATJ olefin hydrogenation reactors, hydrogen must be quickly and uniformly dissolved into the oil phase to ensure reaction rate and conversion rate. Traditional gas-liquid distributors are prone to bubble coalescence, mass transfer dead zones, and local hotspots in hydrogen, high-pressure, and high viscosity systems. The NDM series dynamic mixer directly crushes bubbles with high shear and forcibly dissolves them:
The gas-liquid mass transfer coefficient is 2-5 times higher than that of traditional distributors, and the time required for equal amount of H2 dissolution is significantly reduced, directly improving the production capacity of hydrogenation reactors
Bubbles are sheared to the micrometer level and evenly dispersed in the oil phase, completely eliminating channeling and dead zones, and the concentration field inside the reactor is highly consistent
Industrial grade sealing solution under high-pressure hydrogenation process: single end face/double end face/magnetic drive optional, zero leakage, suitable for process safety requirements of flammable and explosive media
Variable frequency speed regulation+online process switching, suitable for different feeding systems such as waste oil, vegetable oil, HEFA intermediate products, ATJ olefins, etc
Typical applications:
HEFA: H2 oil online mixing before hydrogenation deoxygenation reactor for waste oil/vegetable oil
HEFA: Homogenization of Hydrocracking and Isomerization Stage Products to Inhibit Local Coking of Catalysts
ATJ: Enhanced gas-liquid mixing in the olefin hydrogenation section after dehydration of ethanol/isobutanol
SAF blending: online injection and blending of trace amounts of antioxidant/anti-static/anti icing additives
Dynamic mixer: the core equipment of FT Fischer Tropsch synthesis slurry bed
FT Fischer Tropsch synthesis is one of the three main routes of SAF, and the reactor is a slurry bed (gas liquid solid three-phase): synthesis gas (H2+CO) is bubbled from the bottom, high-temperature wax is used as the continuous phase, and catalyst particles are suspended in it. The mass transfer efficiency of the slurry bed directly determines the one-way conversion rate, carbon number distribution (C5-C20), and catalyst life. The NDM series provides an engineered solution for this core reactor:
Strong Suspension: Under the high viscosity wax+catalyst particle system, the catalyst is uniformly suspended to avoid settling, channeling, and local blockage
Strengthening gas liquid solid three-phase mass transfer, precise mixing of H2/CO ratio in synthesis gas, directly improving reaction selectivity and space-time yield
High temperature and high pressure resistant structural design, fully covered from 0-200 ℃, suitable for typical operating conditions of FT reactors
High strength wear-resistant overcurrent components, modular quick release structure supporting online maintenance, meeting the long-term continuous operation requirements of FT devices
Typical applications:
FT slurry bed reactor: wax catalyst suspension and enhanced gas-liquid mass transfer
Synthesis gas section: fine mixing and proportional control of H2/CO/CO2 multi stream process gas
High temperature wax treatment: homogenization and viscosity reduction before online separation of wax and catalyst
Before crude synthetic oil distillation: online homogenization pretreatment to stabilize downstream tower feed
Green Hydrogen Coupling: Integrated Production Line Hybrid Equipment for Green Electricity Hydrogen Production and FT Synthesis
Tianjin Langxing adheres to the delivery standard of process value, and uses its independently developed NDM series dynamic mixer to serve the three SAF main routes of HEFA, ATJ, and FT, helping customers improve gas-liquid mass transfer efficiency, reduce unit energy consumption, and support the continuous and long-term stable operation of SAF devices. Looking forward to building a low-carbon future for aviation fuels with you.