105- Discussion on the design of a “cooling and separation” device for high-temperature paraffin-containing steam in units for producing carbon molecular sieves from tar
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This post was last edited by luoli519 on 2020-1-4 at 12:45. For applications involving the cooling of gas streams with high temperatures and containing tar and asphalt, as well as the pre-separation of solid and liquid contaminants, what type of equipment can be used to achieve satisfactory results in terms of cooling, separation, and minimizing blockages while also reducing long-term operating and maintenance costs? For example, the devices for producing carbon molecular sieves from tar pitch face such severe operational challenges. Please discuss based on your own experience with equipment operation.
This post was last edited by luoli519 on 2017-6-13 at 18:00. There are several sets of facilities in China that use high-temperature and medium-temperature tar as raw materials to produce carbon molecular sieves. The high-boiling polycarbon solvent substances in tar need to be completely removed as much as possible under high vacuum and high temperature conditions. However, vacuum pumping systems either have high temperatures or contain low-molecular-weight paraffins and liquid mixed hydrocarbon oils, which pose a severe challenge to the stable and continuous operation of cooling heat exchange equipment, vacuum equipment, separation equipment, and similar systems.
In fact, the cooling and purification of high-temperature, dusty, and tar-containing furnace gas as well as raw gas generated by low-rank coal upgrading units and coking units also face similar problems. Some owners of low-grade coal upgrading and moving-bed gasification plants, faced with the aforementioned challenging issues, came to us in groups to seek technical improvements and solutions.
This post was last edited by luoli519 on 2017-6-13 at 18:01. I recommended three improvement solutions to our clients: the G58 type umbrella-shaped swirl vane separator, the G50 type horizontal cooling + separation \"two-in-one\" integrated special combiner, and the G54A type axial-flow multi-factor swirl parent-child separator. I would like to ask if anyone has any better technical equipment that could be recommended for use in the conditions described in this post, with a focus on long operational cycles, low operating and maintenance costs, as well as effective cooling and separation capabilities
The last edit to this post was made by luoli519 on 2023-9-27 at 13:08. The company’s official website, www.novelseparationtech.com, has uploaded the following content: 1. Drawings of the paraglider-type separator； 2. Flow bed gas-solid separator drawings ；
This post was last edited by luoli519 on 2023-9-27 at 13:09. Additionally, the following professional discussion threads posted by NOVEL on the HCBBS Chemical Forum are listed here for everyone to use as links to join the discussions: 13. Discussion on improvements to the inlet devices of cyclone separators in gas-solid separation applications; please visit https://bbs.hcbbs.com/thread-1614524-1-1.html to participate in the discussion. 14. Regarding the issues arising from the use of swirl tube/swirl plate demisters in the wet flue gas desulfurization process for boilers, please visit https://bbs.hcbbs.com/thread-1599605-1-1.html to participate in the discussion. 15. For discussions on the selection of separation internals for the gas-liquid separators in the gas distribution units of natural gas projects, please visit https://bbs.hcbbs.com/thread-1598340-1-1.htmll to participate in the discussion. 16. Regarding the issues of liquid presence at the outlet of the low-temperature separator in the natural gas dehydration unit and excessive dew point, please visit https://bbs.hcbbs.com/thread-1596842-1-1.html to participate in the discussion.
This post was last edited by luoli519 on 2023-9-27 at 13:09. For discussions on efficient drying of fluorite powder in hydrogen fluoride production plants as well as dust removal methods that reduce operational and maintenance costs, please visit https://bbs.hcbbs.com/thread-1581731-1-1.html. 30. For discussions on reducing acid rain or alkaline rain around the chimney of the WGS desulfurization unit used in the regeneration of DCC/FCC catalyst flue gas, please visit https://bbs.hcbbs.com/thread-1582849-1-1.html to participate in the discussion. 31. For the exchange of experiences regarding the selection design, installation, operation, and maintenance management of the demister systems in power plant desulfurization scrubbers, please visit https://bbs.hcbbs.com/thread-1587700-1-1.html to participate in the discussion. 32. For solutions regarding the significant capacity expansion of power plant steam boilers while still using the existing flue gas desulfurization scrubber, please visit https://bbs.hcbbs.com/thread-1587710-1-1.html to participate in the discussion. 33. Regarding the bag filter and electrostatic precipitator for flue gas treatment in incinerators for waste salts and alkalis, as well as the multi-factor swirl parent-child safety separation dust collector that follows, please visit https://bbs.hcbbs.com/thread-1588876-1-1.html to participate in the discussion. 34. Regarding the installation of foam removers in cooling towers and measures to prevent large-scale ice formation on the ground around the towers in winter, please visit https://bbs.hcbbs.com/thread-1593340-1-1.html to participate in the discussion. 35. Participate in the discussion on the removal of liquid sulfur foam from SO2 in the sulfur dioxide production unit of the sulfolane plant: https://bbs.hcbbs.com/thread-1616252-1-1.html
This post was last edited by luoli519 on 2023-9-27 at 13:09. Regarding the selection and design issues related to the demister and separation heads for reactors in EO/EG projects, as well as those for thermal deaerators, please visit https://bbs.hcbbs.com/thread-1637878-1-1.html to participate in the discussion. 58. Regarding the impact of design issues related to the dynamic umbrella-type pre-cooling and separation tanks at the top of the regeneration towers and distillation towers in MDEA or low-temperature methanol desulfurization and decarbonization units on system operation, please visit https://bbs.hcbbs.com/thread-1638176-1-1.html to participate in the discussion.
This post was last edited by luoli519 on 2023-9-27 at 13:10. For discussions regarding the selection of internal components such as screen-type, fiber-type, electrostatic capture, and vane separation technologies for the demisting devices in sulfuric acid plants, please visit https://bbs.hcbbs.com/thread-1663240-1-1.html. 84. For discussions on the use of liquid-liquid coalescing separators for efficient separation of hydrocarbons from water, alkylates from acids, light hydrocarbons from MDEA solutions, and hydrophobic phases from hydrophilic phases, please visit https://bbs.hcbbs.com/thread-1664985-1-1.html.
This post was last edited by luoli519 on 2023-9-27 at 13:11. For discussions on item 104, regarding the feather leaf separation assembly and precision separation components to be used in the outlet separator of the MDEA absorber and the MRC buffer in LNG projects, please visit https://bbs.hcbbs.com/thread-1762659-1-1.html.
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