119- Design of a special vane separator for the recycle gas in a syngas-to-ethylene glycol plant (CTEG) using a certain process package
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This post was last edited by luoli519 on 2023-9-27 at 12:19. Recently, there have been many projects launched or in the process of being launched for the production of ethylene glycol from syngas, especially those that use coal-based syngas. The cyclone gas separator used in the carbonylation-oxidation coupling reaction to synthesize ethylene glycol units is typically a feather-type high-efficiency gas-liquid separator. Here, I would like to discuss with you the design of the cycle gas separator for the ethylene glycol production unit in our own plant, which utilizes a carbonylation-oxidation coupling reaction for the synthesis of ethylene glycol. I also hope that everyone will conduct in-depth discussions based on their own technical capabilities and application experiences regarding circulator and separator systems.
This example relates to a high-efficiency vaned gas-liquid separator specifically designed for the recycle gas in the carbonylation-oxidation process for producing ethylene glycol, as required by the WHB process package used by a specialized dynamics-based gas-liquid separation technology company in an ethylene glycol production facility from syngas. The basic process technology data originates from the quotation requests provided by the process package and design institute to a specialized company in dynamic gas-liquid separation technology.
The operating data for this cycle gas separator in the process package are as follows: 1. Operating temperature: 26℃； 2. Operating pressure: 0.15 MpaG ； 3. Circulating gas flow rate: 142,767 m^3/h; 4. Liquid volume carried by the circulating gas: 50.6 m^3/h ； 5. Average molecular weight in the gas phase: 31.8 ； 6. Density under gas-phase conditions: 3.62 kg/m^3 ； 7. Density under liquid-phase conditions: 783 kg/m^3.
The last edit to this post was made by luoli519 on 2023-9-26 at 12:47. The technical requirements for the vane separator specifically designed for this recycled gas are as follows: 1. A vertical vane separator shall be used； 2. Medium: The circulating gas and condensate in the carbonylation-oxidation coupling reaction unit are corrosive, flammable, explosive, and highly toxic ； 3. The separator is required to be able to cope with large temperature fluctuations under operating conditions; the actual operating temperature in summer can reach up to 40℃ ； 4. It is required that the separator must be equipped with safety vent pipeline fittings ； 5. Separation efficiency requirement: 99.5% quantitative separation to remove liquid droplets and foam with a size of 10 microns or larger from the circulating gas. 6. The separator designer and supplier must provide key technical documents such as the \"Hydraulic Calculation Report for Precise Dynamic Gas-Liquid Separation,\" \"Separation Efficiency Curve Chart,\" and \"Operating Pressure Drop Curve Chart,\" to demonstrate the rationality, scientific validity, and reliability of the separator design.
This post was last edited by luoli519 on 2023-9-26 at 12:48. In response to the technical requirements regarding the cycle gas separator put forward by the process package provider and the design institute, the technical details of the vane separator developed by a company specializing in dynamic gas-liquid separation technologies are as follows: 1. Separator type: G50 type vane separator； II. Material: SS304L ； III. Inlet separation assembly: G50B type radiation-stable vane separation assembly ； IV. Precision separation internal component set: G50 type feather-leaf separation patented technology internal component set ； V. Equipment dimensions: ID 146” x SM/SM 184”; VI. Separation efficiency: 4N level separation to remove liquid droplets and bubbles of 5.13 microns and larger in size ； VII. Maximum operating pressure drop: 0.56psi (~3.86kPa) ； VIII. Operational flexibility: 15%-135%.
This post was last edited by luoli519 on 2023-9-26 at 12:48. As can be seen from the technical data regarding the vane separator mentioned above, the vane separation technology offers clear advantages over traditional gas-liquid separation technologies in terms of quantitative separation accuracy, separation efficiency, operational flexibility, and operating pressure drop. In particular, with regard to quantitative separation, traditional gas-liquid separation techniques such as screen separators are unable to achieve quantitative separation due to their inherent structural characteristics and separation mechanisms.
Hello, I would like to get some information about this type of separator. Could you please send me your email address? Thank you. jacques0920@163.com
As long as the droplets can be separated, this shouldn’t be a difficult problem, right?
As long as the droplets can be separated, this shouldn’t be a difficult problem, right?
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Could you send me one? My email address: LNGWANGY@163.COM. Tianda’s autonomous technologies do indeed possess uniqueness