The recently launched coke steamed ammonia production of Langfang Jinsheng Energy Saving Technology Service Co., Ltd. has a good economic benefit by using heat transfer oil instead of steam heating technology. According to calculations, the coke plant of 1.5 million tons/year will use the technology to achieve an annual profit of more than 8 million yuan. According to reports, the traditional ammonia steaming process generally uses cast iron grid towers or bubble cap towers. The direct steam distillation technology is used. The disadvantages are low efficiency, high energy consumption, environmental pollution and serious equipment corrosion. Heat transfer oil instead of steam Heating steamed ammonia production technology uses coke oven gas as fuel to heat the heat-conducting oil furnace to increase the temperature of the heat-conducting oil, instead of steam, it is used to distill ammonia. This technology can increase the efficiency of ammonia evaporation, stabilize production, reduce production energy consumption, and improve the operating environment. Thermal oil is an organic carrier. It has good fluidity, high temperature resistance, good thermal stability, strong oxidation resistance, large thermal conductivity, non-toxic, tasteless and non-corrosive. The use of thermal oil instead of steam as the ammonia heat source solves the problem of high energy consumption of steamed ammonia and overcomes the impact of steam stress in winter on production. At the same time, as the new steam-evaporation process eliminates direct steam, it can reduce the amount of sewage produced by 9 tons/hour, and annual reduction of wastewater is 78,800 tons. In addition, the heat conducting oil station not only provides heat source for steaming ammonia station after putting into operation, but also provides heat source for desulfurization station and ammonium sulfate station, and provides 1/3 of the total heat for steaming ammonia station.
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