Tubular tungsten carbide welding rods are a type of welding consumable used for hardfacing applications. They are made by filling a tubular steel rod with a mixture of tungsten carbide particles and a binder material. Welding Rod,Welding Rod Price,Best Welding Rods,Tungsten Welding Rod Luoyang Golden Egret Geotools Co., Ltd , https://www.xtcwelding.com
Since the device was driven in 1994, it has been using SD-2118S catalyst from the US SD company. Although the activity of this type of catalyst is relatively high, the selectivity is relatively low (average selectivity is 79.6% in two years), resulting in high ethylene consumption of raw materials. . Since ethylene consumption accounts for more than 80% of production costs, the selection of suitable catalysts is the main direction for equipment to reduce costs.
Jilin Petrochemicals, through exchanges with domestic and foreign catalyst suppliers, took the lead in selecting the SD company's 300-8 catalyst in the domestic same-period device. This catalyst has an average selectivity of 82.23% over three years (83.15% for two years), which is more than the original value of the device. The average selectivity of the catalyst over the two years was 2.63% higher. One month after the replacement of the new catalyst, the energy consumption and material consumption quota of the device all reached the expected target, ethylene consumption was reduced by 26 kg/h, and oxygen consumption was reduced by 58.5 m3/h.
The tungsten carbide particles provide exceptional hardness and wear resistance, making them suitable for applications where the welded surface needs to withstand high levels of abrasion, erosion, or impact. The binder material helps to hold the tungsten carbide particles together and facilitate the welding process.
Jilin Petrochemical ethylene oxide plant application of new catalysts
Jilin Petrochemical Company to further improve the device's ability to create profit, the implementation of ethylene oxide catalyst device modification, the use of the United States SD company SD300-8 type catalyst, after 72 hours of calibration, once passed the acceptance test, the catalyst selectivity is 84.96 %, higher than the contractual guarantee value of 2.6 percentage points, only to save ethylene one can create more than 10 million per year.