MEG Plant/ MEG Production

Ethylene glycol is a widely used chemical product, which is used as the raw material for solvent, antifreeze and polyester synthesis. The existing production processes for ethylene glycol include: chloroethanol method, ethylene oxide hydration method, gas-phase catalytic hydration method, direct ethylene hydration method, formaldehyde method, oxalic ester method,etc.

Specification of MEG Production（GB/T464）

Production Routes

There are two main routes for Ethylene Glycol (Monoethyle Glycol/MEG) production: one is the Olefin/EO(Ethylene Oxide) Route starting from either naphtha, ethane or methanol, the licensors include Shell, SD, UCC and etc. And the other is the DMO(dimethyl oxalate) Route newly emerged in China these years, starting from syngas. Depending upon the difference operation pressure, this DMO Route is further divided into Normal Pressure Process and Medium-High Pressure Process.

SL TECH offers the most advanced and the most competitive Medium-High Pressure DMO Process for MEG production. Its production cost is much lower than that of Olefin/EO Process at the current low oil price (i.e., USD 67/ BBT), not to mention the Normal Pressure DMO Route. 

Welcome to contact us to get medium-high pressure DMO process for MEG production at lower cost.

Process Comparison of Oxalic Ester Methods

Liquid-phase Catalysis to Synthesize Oxalic Ester to Produce Ethylene Glyco

FAQ of MEG Plant

How is Meg produced through our meg plant?

Meg is produced by the hydration reaction of ethylene oxide, and then vacuum distilled to obtain pure ethylene glycol.

There are two main routes for Ethylene Glycol (Monoethyle Glycol/MEG) production: one is the Olefin/EO(Ethylene Oxide) Route starting from either naphtha, ethane or methanol, the licensors include Shell, SD, UCC and etc. And the other is the DMO(dimethyl oxalate) Route newly emerged in China these years, starting from syngas. Depending upon the difference operation pressure, this DMO Route is further divided into Normal Pressure Process and Medium-High Pressure Process.

What is Meg used for in oil and gas?

End uses for MEG range from clothing and other textiles, through packaging to kitchenware, engine coolants and antifreeze. Polyester and fleece fabrics, upholstery, carpets and pillows, as well as light and sturdy polyethylene terephthalate drink and food containers originate from ethylene glycol. The humectant (water attracting) properties of MEG products also make them ideal for use in fibres treatment, paper, adhesives, printing inks, leather and cellophane.

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Advantages & Features of MEG Plant

The MEG plant provided by SL TEC has advantages as follows:

1. The pressure of the carbonylation unit is increased to 2.0-3.0MPa, about 5-7 times the conventional process, thereby the diameter of main equipment and pipes are reduced by 2-2.5 times.

2. The carbonylation reactor is changed from tubular type to plate type, whose heat transfer effect is increased by one time, the catalyst loading coefficient increased by over 60%, the STY (Space-to-Time Yield) more than doubled, which allows the large scale of each production line.

3. The catalyst has better selectivity, higher conversion yield and longer service time ( over 2 years)

4. The CAPEX of the carbonylation unit is reduced by 50%, while the investment of the carbonylation unit takes 40% of the total investment.