One-time lifting and installation of the product tower skirt section of the CO₂ purification unit in Ningxia Baofeng methanol project

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One-time hoisting and installation of the base section of the CO₂ product tower for the purification unit in the Ningxia Baofeng methanol project / Author/Source: Sinochem Sixth Construction Company / Date: 2019-07-10 / Clicks: 4. On July 7, the base section of the CO₂ product tower for the purification unit in the Ningxia Baofeng methanol project was installed through one-time hoisting. The equipment has a diameter of 4.7 meters, a total height of 20.8 meters, a wall thickness of 0.03 meters, and a total weight of 133.4 tons. It is lifted using a 650-ton crawler crane for the main lifting operation, with a 350-ton crawler crane used for assisting with the lift. Introduction to the Ningxia Baofeng Energy Project: The process optimization involves changing the gasification unit from 30 fixed-bed gasifiers to 6 fluidized-bed gasifiers ； The air separation unit has been changed from 3 sets of 80,000 Nm3/h to 2 sets of 105,000 Nm3/h ； Cancel the cryogenic separation unit ； The low-temperature methanol washing unit, refrigeration station unit, sulfur recovery unit, and methanol synthesis and compression unit have all been changed from 2 sets to 1 set ； The power station was changed from 4 boilers of 500 t/h to 3 boilers of 420 t/h. After the optimization of the project, the total number of main equipment units decreased from 1,965 to 1,588, and the land area reduced from 216.4 hectares to 129.2 hectares, resulting in savings of 585,073 million yuan in investment. A 2.2 million tons/year coke gasification methanol production plant, a 600,000 tons/year methanol to olefins plant, a 300,000 tons/year polyethylene plant, a 300,000 tons/year polypropylene plant, along with supporting utility systems and auxiliary facilities. The total investment for the project is 1,527,887 million yuan, of which 1,429,736 million yuan is allocated to construction costs, 11,983 million yuan to working capital for the initial phase, and 86,168 million yuan to interest during the construction period.