Key Measures and Effects for Improving the Yield of the Formaldehyde Unit in a Certain Company
The company's formaldehyde plant had a relatively low product yield,and the methanol consumptio was high.After thorough analysis,the main reasons identified were poor methanol atomization,high temperatures in the third section of the absorption tower,frequent malfunctions of the fan leading to abnormal shutdowns of the formaldehyde plant,and outdated catalyst loading methods.To address these issues,the company embarked on a series of improvements,including modifying the atomizer and optimizing its operational parameters to enhance methanol atomization,renovating the absorption tower to lower temperatures in its third section,upgrading the fan to reduce plant startups and shutdowns,and optimizing the catalyst loading method to improve reaction efficiency.As a result,the methanol consumption rate was reduced to 0.611 tons per ton of formaldehyde produced.Concurrently,the enhancement in formaldehyde yield also extended the service life of the formaldehyde catalyst from 540 days to 730 days,laying a solid foundation for future expansion plans.Amid the current sluggish performance of the entire BDO industry,the improved formaldehyde yield and extended catalyst lifespan have translated into annual cost savings of approximately million yuan,significantly contributing to the company's efforts to turn around its financial situation and achieve profitability.