Introduction to benzene hydrogenation N-formylmorpholine

The last edit to this post was made by zf201012 on 2014-10-27 at 11:42. China’s N-formylmorpholine technology is among the best in the world. According to the China Chemical Industry News, Haohua (Chengdu) Technology Co., Ltd., located at the industrialization base of the Southwest Chemical Research and Design Institute, is the largest producer of N-formylmorpholine in the country. Its proprietary technology for producing N-formylmorpholine is now among the best in the world. The reporter learned that in the international bidding for the solvent project associated with N-formylmorpholine, part of Shanxi Sanwei Group’s world’s largest benzene refining facility, the Southwest Chemical Engineering Research and Design Institute won the bid, demonstrating China’s international competitiveness in this technical field. The refining of crude benzene from coking is one of the fundamental technologies in coal chemical industry, with acid washing and hydrogenation being the two main processes. The pickling method generates large amounts of acid tar that cannot be processed, causing severe environmental pollution; it results in low product quality and yield, as well as high production costs. It was officially banned in 2006 with a set deadline for its elimination, while developed countries had already phased out the pickling refinement method back in the 1960s. The crude benzene hydrogenation refining technology removes sulfur-containing compounds and non-aromatic hydrocarbons from crude benzene through catalytic hydrogenation, thereby producing high-quality benzenoid hydrocarbons. This technology features low energy consumption and high product quality, representing the development trend in the refining of crude benzene. It is understood that N-formylmorpholine is an extraction solvent used in the hydrogenation and purification of coked benzene, and it is crucial for ensuring the quality of refined benzene; it has been under the monopoly of foreign companies for a long time. The 200,000 tons per year coking benzene hydrogenation unit of Sanwei Group adopts catalytic hydrogenation technology from German company UHDE, and it is the world’s largest single-unit benzene refining facility. Given the high quality requirements for N-formylmorpholine in this project, 3D Group decided to conduct international public bidding for procurement. The N-formylmorpholine products produced by the Southwest Plant have been tested by authoritative domestic and international institutions, and all their technical specifications are superior to those of similar products in Europe and the United States. The purity of these products reaches 99.9%, with levels of moisture and free morpholine below 0.05%, and free acid levels below 0.005%. The Southwest Branch stood out during the bidding process and won the contract outright. 5 Z- G: D1 W (Daqing Zhonglan Petrochemical, with a production capacity of 500,000 tons per year of C4 – the largest C4 production facility in the country; our company’s N-formylmorpholine is also used there). Experts explain that N-formylmorpholine can be used not only as a solvent for the extraction of aromatics and butenes, but also for the desulfurization of natural gas and natural gas condensate, gasoline, syngas, and flue gases. High-quality formamidine has been monopolized by foreign companies in the international market, and the formamidine needed in China relies entirely on imports. Aiming at this market gap, the Southwest Institute assembled top experts to carry out scientific and technological research. In 1993, the domestic-only laboratory achievement developed by the Southwest Research Institute for producing N-formylmorpholine using the methyl formate method was evaluated by experts; industrial production began in 1999. In 2002, special funding was provided to build the only industrial demonstration plant in the country for manufacturing N-formylmorpholine via the methyl formate method, with a production capacity of 1,200 tons. On May 16, 2007, an invention patent was granted by the **Intellectual Property Office, with the patent number: ZL2005 1 0020483.2. ; }) a6 }4 R. d Z, _. [$ W To date, the N-formylmorpholine products produced by the Southwest Research Institute have been successfully used in the aromatic hydrocarbon extraction units of more than 10 domestic enterprises, and have also been exported to countries such as Iran, India, Saudi Arabia, Yemen, and Spain.**

Sinopec’s research institutes widely use sulfolane; could these two options be compared?