Beijing, China — Beijing Zijingshi Technology Co., Ltd. (Zijingshi), a leading supplier of advanced industrial sulfonation plants and equipment, has successfully completed the delivery of three core sulfonation production units to China Petroleum & Chemical Corporation (Sinopec).
The delivered equipment array includes two 6 t/h units and one 2 t/h unit, designed to provide high-efficiency, reliable, and low-emission performance for large-scale continuous sulfonation production.
Core Equipment Delivered in This Project
To ensure optimal reaction control, product clarity, and energy management, Zijingshi supplied a complete suite of key proprietary equipment for Sinopec's continuous SO3 sulfonation lines:
1. 3rd-Generation Sulfonation Reactors (2x6 t/h, 1x2 t/h)
Featuring refined gas-liquid distribution mechanisms and precise thermal control, Zijingshi’s 3rd-gen continuous multitube falling film reactors guarantee superior reaction yield, uniform film distribution, and minimized dioxane byproduct levels.
2. Proprietary Two-Stage Liquid-Flash Degassers
Specially engineered to efficiently eliminate dissolved SO2\SO3 gases and entrapped air bubbles, significantly enhancing final product color stability and purity.
3. High-Efficiency Gas-Liquid Separators & Cyclone Separators
Designed for low pressure drop and maximum separation efficiency, ensuring clean spent-gas exit streams and minimizing organic carryover.
4. Waste Heat Recovery Heat Exchangers & Condensers (3 Sets)
Integrated process heat exchangers designed to capture high-temperature waste heat, directly lowering operational energy consumption and supporting green plant standards.
Driving Next-Generation SO3 Sulfonation Technology
As a long-term partner for world-class chemical enterprises, Beijing Zijingshi continues to innovate in the field of sulfur trioxide SO3 continuous sulfonation, sulfation, and neutralization technology. The successful delivery and implementation of these three key production units for Sinopec mark another milestone in high-capacity, heavy-duty industrial sulfonation equipment design.
Whether for alkylbenzene sulfonic acid (LABSA), fatty alcohol ether sulfate (SLES), or specialty surfactant manufacturing, Zijingshi provides turn-key technology and tailored core equipment built to exceed modern environmental and throughput standards.
About Beijing Zijingshi
Beijing Zijingshi Technology Co., Ltd. specializes in engineering design, equipment manufacturing, and process technology solutions for industrial sulfonation plants. With decades of expertise and proven core components—including continuous falling film reactors, gas treatment systems, and energy-recovery units—Zijingshi empowers global chemical manufacturers to achieve sustainable, high-yield production.
Need high-capacity sulfonation plant equipment or custom reactor design?
Visit our website atzijingshi.comor contact our engineering team to explore our continuous SO3 sulfonation technology.
