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On April 27, the first process equipment for the nitrobenzene unit of Wanhua Chemical Group Co., Ltd.’s integrated isocyanate capacity expansion project – namely the acid washing stratifier in Section 3 – arrived at the site and was hoisted into place as planned. During the pandemic, in order to minimize the impact on the construction progress of the nitrobenzene unit as part of Wanhua Chemical Group Co., Ltd.’s integrated expansion project for isocyanates, the Saiding project team overcame numerous difficulties and arrived at the site in mid-February to get started on the work. By working closely with the construction contractor, Shandong Shengyue Company, they ensured that the construction progressed smoothly.
The integrated expansion and technological upgrade project for isocyanates at Wanhua Chemical Group Co., Ltd. is located in the western area of the Wanhua Industrial Park. The site stretches from Shugang West Road in the west, to Wanhua Road within the Wanhua Yantai Industrial Park in the east, adjoins Chongqing Street in the south, and faces the western port area of Yantai Port in the north. This project is planned to be constructed near the existing MDI plant, aniline plant, and chlorohydrin plant in the West Area; after the capacity expansion and technical upgrades, the total land area of the project will be approximately 196,158 m2. The total approved investment for the project is 3,562,448,100 yuan.
This project was EPC-general contracted by Saiding Engineering Co., Ltd. It is the first key project following the strategic contract agreement signed between the company and Wanhua Group, carrying great strategic significance. The successful completion of this project will undoubtedly lay a solid foundation for the cooperation between Saiding and Wanhua. From April 7 to April 17, the project manager and procurement manager of Saiding went to various equipment manufacturers in person, despite the challenges posed by the pandemic, to oversee quality control and urge prompt delivery of the equipment. It has now been confirmed that the delivery schedules for all equipment meet the requirements of the construction timeline. The successful completion of this lifting operation was made possible by the joint efforts of all those involved in the project. Under the pressure of the pandemic, the project management team will remain united, make rational use of human and material resources, and contribute to helping the company win this market competition in 2020.
The project construction includes the following: MDI plant: capacity expansion and renovation, from 600,000 tons per year to 1.1 million tons per year; HDI and its adducts plant: new construction, with an HDI production capacity of 30,000 tons per year and an HDI adducts production capacity of 20,000 tons per year; ADI plant: capacity expansion and renovation, with the production capacity of HMDA and HMDI increased from 10,000 tons per year to 20,000 tons per year; the IPDI production capacity is increased from 15,000 tons per year to 30,000 tons per year; Aniline plant: new construction, including 1 nitric acid production unit with a capacity of 360,000 tons per year, 2 *** production units with capacities of 480,000 + 240,000 tons per year, and 2 aniline production units with capacities of 360,000 + 180,000 tons per year; Chlorination-hydrolysis plant: new construction, with a capacity of 240,000 tons per year; HCl gas to hydrochloric acid conversion plant: new construction, with a capacity of 226,000 tons per year. and supporting utility systems and auxiliary facilities.