【Major Chemical Equipment Innovations】096 – Development of China’s first horizontal opposed-balanced BOG compressor successful
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This post was last edited by Desert Fish on 2022-4-16 at 13:18. The past decade has been a period of rapid development in China’s chemical industry, with the emergence of many new processes, products, and equipment. China’s chemical processing equipment has also seen significant progress, which has contributed to the swift advancement of the petrochemical industry. Here, we have compiled some of the achievements and breakthroughs made by Chinese equipment manufacturers in terms of larger-scale production and greater use of domestic equipment. Everyone is welcome to share, discuss, and exchange ideas; let’s cheer for Made in China and support the development of chemical processing equipment! ***********************************
More people are welcome to participate in the relevant discussions. Click on the blue link to access it: The 【HaiChuan Equipment Guessing Game】 series is being updated continuously in 2022; all equipment enthusiasts are invited to join actively! https://bbs.hcbbs.com/thread-2079686-1-1.html (Source: Huahai Chuanliu – Haichuan Chemical Industry Forum) Summary post on the series 【Major Equipment in the Chemical Equipment Industry】 https://bbs.hcbbs.com/thread-3312079-1-1.html (Source: Huahai Chuanliu – Haichuan Chemical Industry Forum) Summary post discussing the components of cracking furnace equipment for 【Ethylene Cracking】 https://bbs.hcbbs.com/thread-3308724-1-1.html (Source: Huahai Chuanliu – Haichuan Chemical Industry Forum)
Features of BOG compressors: BOG stands for Boil Off Gas, which refers to the gases generated when low-temperature liquids such as LNG (-172°C), low-temperature propane (-40 to -42°C), and low-temperature ethane (0 to -2°C) absorb heat from their surroundings and vaporize inside storage tanks. As the amount of volatile gases in the storage tank increases, the pressure inside the tank rises continuously. To keep the tank pressure within acceptable limits, it is generally necessary to compress the BOG and then condense it into a liquid, or to compress it and discharge it. A BOG compressor is a compressor used for gas compression. Typically, BOG compressors use oil-free reciprocating compressors, and their working principle is the same as that of ordinary reciprocating compressors. The difference is that the BOG compressor draws in low-temperature gas at its inlet; therefore, the first-stage cylinder and piston of the compressor must be able to withstand low temperatures and must also be protected from freezing. Oil-free lubrication is generally achieved using labyrinth seals or special piston rings.