【Ten Years of Rapid Development in Chemical Processing Equipment】Overall design and manufacturing of ring-type reactors with a capacity of up to 500,000 tons per year from 1998 to 2023
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The last edit to this post was made by Desert Fish on June 27, 2023, at 13:37. There has been significant development in chemical processing equipment over the past decade; let’s celebrate the prosperity and strength of modern China. This is just a starting point – more participation from everyone will make things even more lively. Haichuan becomes even better with your involvement; we welcome everyone to engage more in discussions on this forum. Everyone should pay attention to safety and know how to handle emergencies. ********************************************* On June 16, 2023, the loop reactor for the 500,000-ton/year high-density polyethylene (HDPE) production unit of the Tianjin Nangang Ethylene Project, which was designed and manufactured using modular approaches by Maoming Gravity Petrochemical Equipment Co., Ltd., was loaded onto a ship at the Maoming Petrochemical Port. This is the largest loop reactor in the world to adopt an integrated modular design for manufacturing, transportation, and lifting, setting a precedent for the modular design, manufacturing, transportation, and lifting of loop reactors. The Tianjin Nangang ethylene project is a key project under the 14th Five-Year Plan. The loop reactor of the 500,000 tons per year HDPE production facility is a critical piece of equipment for this project; the HDPE produced can be used to manufacture high-end products such as food-grade materials, gas pipeline materials, and large-diameter anti-sag pipes. Mao Ming Gravity, Sinopec Tianjin Branch, Sinopec Engineering Construction Co., Ltd. (SEI) and other relevant parties worked together closely; after thorough consideration, they devised and implemented an engineering plan for the modular design, manufacturing, and overall delivery and installation of the loop reactor in this HDPE plant. After half a year, Maoming Gravity successfully completed the manufacturing of two loop reactor units with high quality. The 500,000 tons/year HDPE plant is equipped with 2 loop reactors; the total height of these units is 76 meters, and their combined weight exceeds 1,400 tons. The weight and size of loop reactors present many challenges regarding modularization, factory-based delivery, and one-time lifting. Under the careful guidance of SEI, Maoming Gravity carried out modeling calculations and scheme design for the overall transportation and lifting of the equipment, and conducted repeated structural analysis calculations regarding the local stresses at the lifting points as well as the overall modeling for lifting. During the production phase, Maoming Gravity made every effort to accelerate the schedule, completing the manufacturing of the ring pipes 15 days ahead of schedule and delivering them successfully to the Tianjin Petrochemical Nangang Ethylene Project. By adopting new technologies, methods, and approaches, it was possible to reduce the construction period, improve quality and efficiency, and minimize risks.
【Ten Years of Rapid Development in Chemical Processing Equipment】The integral modular structure of the vertical warehouse for the ethylene project in Tianjin Nangang from 1998 to 2023 https://bbs.hcbbs.com/thread-4103026-1-1.html (Source: Huahai Chuanliu – Haichuan Network)
The petrochemical industry is a pillar of the national economy and a key sector that underpins the high-quality development of the manufacturing sector. Maoming Gravity focuses on the manufacturing of petrochemical equipment. It is one of the leading suppliers of loop reactor systems in the world, boasting extensive experience in the design and production of such reactors. Its market share in this area ranks among the highest globally. The company has been recognized as a high-quality high-tech product in Guangdong Province, and it is also included in the first batch of manufacturing industry champion enterprises (products) listed in that province. The Tianjin HDPE loop reactor is another major national asset that meets the petrochemical industry’s demands for standardized design and factory-prefabricated equipment, thanks to its advanced gravity-based technology. In 1996, Maoming Gravity succeeded in manufacturing the first domestically produced loop reactor, ending the long history of reliance on imported equipment of this type. Over the past 30 years, large-scale polypropylene/polyethylene loop reactors in China with capacities of 100,000–500,000 tons per year have been primarily supplied by Maoming Gravity, and these products have been exported.
【Ten Years of Great Progress in Chemical Engineering Technology】097–2023: Pre-conversion + single-stage conversion process for hydrogen production from 100,000 cubic meters per hour of natural gas https://bbs.hcbbs.com/thread-4103408-1-1.html (Source: Huahai Chuanliu – Haichuan Network)
【Ten Years of Great Progress in Chemical Technology】series of summary posts – continuously being updated! https://bbs.hcbbs.com/thread-3594069-1-1.html (Source: Haichuan Net)