employee
employee
Russian Federation
employee
Gas emissions from oil refineries are high in calories, but they contain toxic and corrosive sulfur compounds. For their use in the energy industry, pre-purification is necessary. Adsorption technologies are preferred due to their simplicity, lack of complex regeneration and minimal use of reagents. A promising area is the development of sorbents based on industrial waste. The purpose of the study is to analyze the efficiency of purification of fuel gases from ethanethiol (ethylmercaptan) using composite sorbents based on sludge from a water treatment plant (WTP) of thermal power plants (TPP). A flow-type laboratory unit was assembled to conduct research to determine the dynamic adsorption capacity. Sorption compositions based on dehydrated and calcined sludge of the WTP TPP are modified with additives of alkali and metal oxides. The maximum total dynamic capacity reached 13.162±1.974 mg/g for a composition containing calcined sludge, dehydrated sludge, alkali, iron, manganese and zinc oxides as a percentage by weight 40 %, 10 %, 10 %, 10 %, 10 %, 20 %, accordingly. The maximum capacity is provided due to the synergistic effect of the multicomponent composition. The scientific novelty consists in the development of sorption formulations based on energy waste in a closed-cycle economy. The practical significance lies in the possibility of significantly reducing the cost of cleaning gaseous fuels from ethyl mercaptan using inexpensive secondary raw materials. The developed adsorbents can be used at enterprises of the fuel and energy complex to purify fuel gases, associated petroleum gas and petrochemical emissions from organosulfur compounds.
ETHYL MERCAPTAN, ADSORPTION, ADSORBENTS, SLUDGE FROM A WATER TREATMENT PLANT, GAS PURIFICATION, INDUSTRIAL WASTE, MULTICOMPONENT SORPTION COMPOUNDS
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