SO3 Sulfonation Plant Manufacturer

zijingshi

Engineering SO₃ Sulfonation Plants Since 1999

SO₃ Sulfonation Plant & Falling Film Reactor Manufacturer

ZJS builds turnkey SO₃ sulfonation production lines for LABSA, SLES, AOS, MES and petroleum sulfonate, covering process design, equipment manufacturing, commissioning and operator training.

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LABSA, SLES, SLS, AOS and MES Production Lines

Multi-Product Sulfonation Lines for Surfactant Manufacturing

Build flexible SO₃ sulfonation systems for detergent raw materials, personal care surfactants and industrial formulations. ZJS supports single-product and multi-product configurations with falling film reactors, neutralization, hydrolysis, dioxane stripping and automated process control.

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Petroleum Sulfonate and International Plant Projects

Turnkey Sulfonation Engineering for EOR and Chemical Plants

ZJS provides petroleum sulfonate technology, sulfonation plant upgrades and commissioning support for oilfield chemical and surfactant production projects. Our engineering team has delivered equipment and technical services for customers in China, Qatar, Egypt, India, Pakistan, UAE, Oman and other markets.

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LABSA

Linear Alkylbenzene Sulfonic Acid
SLES (AES)

Low-Dioxane Sodium Laureth Sulfate
SLS(K12)

Sodium Lauryl Sulfate
AOS

Alpha Olefin Sulfonate
MES

Fatty Acid Methyl Ester Sulfonate
WPS

Petroleum Sulfonate for EOR

Sulfonation Solutions for Surfactant & EOR Production

Build flexible SO₃ sulfonation lines for detergent raw materials, personal care surfactants, industrial sulfonates and oilfield chemicals. ZJS supports single-product and multi-product plants for LABSA, SLES, SLS, AOS, MES, HAS and petroleum sulfonate production.

Engineering Excellence in Sulphonation

Complete Plant Design, Manufacturing & Commissioning

Founded in 1999, ZJS is a leader in sulfonation engineering, specializing in technology development, turnkey project delivery, and technical consultation for the surfactant and chemical industries worldwide.

Turnkey Project Delivery

Complete sulfonation plant engineering from design to commissioning, delivered on a turnkey basis.
Multi-Product Flexibility

Online switching technology enables LABSA, SLES, SLS, AOS, and MES production on a single unit.
Safety Integrated

Safety Interlock System (SIS) and Emergency Shutdown Device (ESD) configured for every plant.

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25+

Years in Business

Why Choose ZJS for Sulfonation Plant Engineering

ZJS combines long-term process research, proprietary falling film reactor design, practical equipment manufacturing and international project delivery experience for demanding surfactant and oilfield chemical plants.

25+ Years of R&D & Manufacturing Expertise

Our seasoned team brings deep expertise in the R&D and installation of sulfonation production facilities. With our own state-of-the-art manufacturing plant, we guarantee rigorous end-to-end quality control and full traceability for every component and system.
High-Active LABSA & Low-Dioxane SLES

ZJS technology can produce LABSA with high active matter content above 97.5% and low-dioxane SLES with 1,4-dioxane content as low as 8 ppm under verified operating conditions.
Flexible Capacity from Pilot to Commercial Scale

We support 3-10 kg/hr experimental falling film units and commercial SO₃ sulfonation plants from 40 to 8,000 kg/hr per single sulfonation unit.
Global Project and Upgrade Experience

ZJS has supplied, upgraded and commissioned sulfonation plants for customers in China, Qatar, Egypt, India, Pakistan, UAE, Oman and other markets.

Integrated Sulfonation Production Line

Our SO₃ sulfonation plants use falling film reactor technology for continuous, high-efficiency surfactant production.

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From Process Design to Plant Start-Up: A Global Portfolio

ZJS has delivered sulfonation plant engineering, equipment supply, technical renovation and commissioning services for customers in China and overseas markets including Qatar, Egypt, India, Pakistan, UAE, Oman, Ghana and Saudi Arabia.

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Qatar Project

Large-Scale Sulfonation Plant in Qatar

ZJS supplied engineering and equipment support for a large-scale sulfonation plant project in Qatar. The project reflects ZJS experience in international sulfonation plant delivery, site installation support and commissioning coordination for overseas chemical production customers.

3.0t/h
Capability
Egypt Project

5 t/h Low-Dioxane SLES Sulfonation Plant in Egypt

ZJS completed the first-test commissioning of a 5 t/h sulfonation plant for continuous 70% SLES production in Egypt. The project demonstrates ZJS capability in low-dioxane SLES process design, sulfonation plant commissioning and high-capacity surfactant production.

5 t/h
70% SLES Production Capacity
Petroleum Sulfonate Project

35,000 t/year Petroleum Sulfonate Unit in Daqing

ZJS designed a 35,000 t/year petroleum sulfonate production unit using gas-phase film SO₃ sulfonation technology. The project shows ZJS engineering strength in petroleum sulfonate production for oilfield surfactants and enhanced oil recovery applications.

35,000 t/year
Petroleum Sulfonate Production Capacity

010203

Together with Our Clients

We strive to be a true business partner

ZJS works with customers building new surfactant plants, upgrading existing sulfonation lines, improving SLES 1,4-dioxane control, developing petroleum sulfonate for EOR, and expanding detergent raw material production capacity.