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Distillation Columns

    Distillation Columns

    A distillation column, also known as a fractionation tower, is the core mass-transfer and separation equipment widely used in petrochemical refining, chemical processing, natural gas purification and energy industry systems. Based on the thermodynamic boiling point difference of mixed medium components, the tower completes continuous vapor-liquid two-phase countercurrent contact, heat exchange and mass transfer, realizing hierarchical separation and purification of crude oil, chemical solvents and gas mixtures. As the backbone of industrial separation processes, it undertakes the key process o...
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1. Product Description

A distillation column, also known as a fractionation tower, is the core mass-transfer and separation equipment widely used in petrochemical refining, chemical processing, natural gas purification and energy industry systems. Based on the thermodynamic boiling point difference of mixed medium components, the tower completes continuous vapor-liquid two-phase countercurrent contact, heat exchange and mass transfer, realizing hierarchical separation and purification of crude oil, chemical solvents and gas mixtures. As the backbone of industrial separation processes, it undertakes the key process of cutting different fraction components and improving product purity, which determines the overall production efficiency and product qualification rate of the entire refining and chemical plant.
Our industrial distillation columns are divided into two mainstream structural types: tray distillation columns and packed distillation columns. The tray type adopts layered tower tray structure, which is suitable for large-flow, high-load and easy-scaling industrial working conditions, featuring strong anti-blocking performance and stable continuous operation. The packed type is equipped with high-efficiency structured or random packing, which provides larger specific surface area for vapor-liquid contact, with lower pressure drop and higher separation precision, ideal for fine chemical purification and low-pressure vacuum distillation scenarios. The whole tower body adopts vertical cylindrical pressure vessel structure, with integrated forging and welding process, ensuring overall structural rigidity and pressure-bearing safety.
This series of distillation towers supports atmospheric pressure, micro-pressure and vacuum operating modes, adapting to complex working conditions such as high temperature, corrosion and variable load. All internal components are optimized for fluid dynamics to reduce turbulence and dead zones, improve mass transfer efficiency and reduce energy consumption. The tower body is equipped with precision temperature measuring ports, pressure monitoring ports, liquid level detection ports and manhole maintenance ports, realizing real-time process monitoring and convenient daily inspection. Widely applicable to crude oil fractionation, gasoline and diesel refining, solvent recovery, natural gas dehumidification and chemical raw material purification, it is essential standardized equipment for modern petrochemical and chemical enterprises.

2. Technical Specifications & Parameters

Parameter Item
Technical Standard
Product Name
Industrial Distillation Column / Fractionation Tower
Tower Type
Tray Type / Packed Type / Composite Type
Operating Pressure
Vacuum / Atmospheric / Low Pressure (0~1.6MPa)
Working Temperature Range
-20℃ ~ 450℃
Tower Diameter Range
DN300 ~ DN6000 (Customizable)
Tower Height
5m ~ 60m (Customized According to Process)
Main Material
Carbon Steel, 304/316 Stainless Steel, Duplex Steel
Internal Parts
Sieve Tray, Valve Tray, Structured Packing, Random Packing
Separation Efficiency
High Precision Fractional Purification
Executive Standard
ASME, GB150, ISO 9001
Application Industries
Petrochemical, Refinery, Fine Chemical, Natural Gas Processing

3. Company Profile

Sanmen Machinery Co., Ltd. is a professional comprehensive manufacturer focusing on Petrochemical Tower Equipment, pressure vessels and industrial mass-transfer equipment, with more than 18 years of industrial equipment R&D and manufacturing experience. The company specializes in customized design, precision processing and turnkey solution delivery of distillation columns, absorption towers, stripping towers and complete tower internal parts, serving global petrochemical, refining, chemical and energy engineering projects.
The company has standardized heavy-duty manufacturing workshops and professional pressure vessel testing laboratories, equipped with large-scale rolling machines, automatic welding equipment, heat treatment devices and non-destructive flaw detection systems. All distillation columns undergo strict raw material inspection, welding quality detection, hydraulic pressure test and air tightness test. We adopt advanced fluid simulation technology to optimize tower internal structure, effectively improving separation efficiency and reducing operating energy consumption. Whether for large refinery fractionation towers or small fine chemical purification towers, we can provide standardized and customized design solutions according to customer process parameters.
Adopting factory direct sales mode, we eliminate intermediate links and provide high-quality and cost-effective tower equipment. Our distillation columns and tower internals have been exported to more than 30 countries and regions in the Middle East, Southeast Asia, Africa and Latin America. We provide one-stop full-cycle services including process simulation, structural design, factory prefabrication, on-site installation guidance, commissioning and after-sales maintenance, helping customers improve production efficiency and reduce long-term operating costs.


 Frequently Asked Questions (FAQ)

Q1: What is the difference between tray type and packed type distillation column?
A1: Tray columns are suitable for large flow, high viscosity and easy scaling media, with strong anti-interference ability and stable load adaptability, widely used in crude oil fractionation. Packed columns have larger mass transfer area, lower pressure drop and higher purification accuracy, more suitable for fine chemical separation, low-temperature and vacuum distillation working conditions.
Q2: Can the distillation column be customized according to process requirements?
A2: Yes. We support full personalized customization including tower height, diameter, material, internal structure, working pressure and temperature grade. Professional engineers optimize the tower structure and internal parts matching scheme according to customer medium characteristics, separation precision and production capacity requirements.
Q3: What anti-corrosion measures are adopted for chemical media?
A3: For conventional media, we adopt high-standard anti-rust and anti-corrosion coating. For corrosive media such as acid and alkali, we use 316 stainless steel or duplex steel materials, and adopt special anti-corrosion treatment to ensure long-term stable operation of the tower body and internal parts.
Q4: What certification and test reports can be provided?
A4: All products comply with ASME and pressure vessel national standards, and pass ISO 9001 quality certification. We can provide complete material certificates, NDT inspection reports, pressure test reports and factory acceptance documents to support project inspection and export customs clearance.
Q5: What is your delivery cycle and after-sales service?
A5: Standard structural tower equipment takes 20–30 working days. Large customized distillation columns are delivered according to project schedule. We provide on-site installation guidance, process debugging, technical training and lifelong after-sales spare parts support to ensure stable and efficient operation of customer production lines.


Related tags： Large Capacity Fractionation Column Petrochemical Tower Equipment Packed Type Distillation Tower

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Sanmon Machinery Equipments Co., Ltd. founded in 2010, is located in the beautifulcoastal city - Yantai of China. We are an integrated company for Oil & Gas Equipment ApplicantResearch, Customized Design, Order Production and Global Sales, We provide professional productsand services to the Oil and Gas Industrial Customers over 20 countries and regions. Our productscover Sucker Rod Pump Jack, Pump, Sucker rod and Accessories, Wellhead and X-mas Tree, Valves,Completion Tools, Artificial lift Equipment, Flow Control Equipment, Coil Tubing Tools, OilfieldWork Vehicles, Chemicals & Additives, Wire-line Tools, etc., and we supply Well CompletionService, Coil Tubing Work Service, snubbing service, Down-hole Pipe Cutting Work, ArtificialLifting Work, Special Tools and Vehicles Renting Service and other related services. Longcareered engineer and technicians, ISo and API strict quality control factory and excellentsales team are always our exclusive advantages.

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