An energy-efficient resource-saving absorbent regenerating plant having a pyroevaporator and utilizing fuel wastes and effluents of oil and gas processing plants is investigated. The results of appraisal of the efficiency of the developed alternative version of the plant for facilities being planned and operated based on a system of parameters that include energy, technoeconomic, and combined criteria are reported. It is shown with reference to a gas drying plant that updating of the absorbent regenerating block will help reduce consumption of fuel gas from the plant circuit by 30‐40% and curtail environmental pollution by industrial effluents. Absorbent regenerating plants (ARPs) having pyroevaporators are components of oil and gas processing enterprises where natural and process gases are dried and cleaned. In general, ARPs include (Fig. 1) the following apparatuses arranged in succession along the flow path of the absorbent being regenerated: a degasser-separator (DS), a pyroregeneration block with a pyrotube evaporator (PE) and a rectifying column C-1 mounted on it, an air-cooled steam condenser (AC-1), and a saturated absorbent (SA) recuperative heat exchanger-heater (H-1). The ARPs also include absorbent pumps P-1 and P-2 and tanks E-1 and E-2. Primarily natural gas from the enterprise circuit and partly off-grade gas mixtures with a variable composition are used as the fuel in the evaporator. The fuel gas consumption rate for the production process requirements alone reaches 17‐94 m 3 per 1000 m 3 of processed gas-phase feedstock and 10‐20 m 3 per ton of gas condensate or crude oil. The analysis made of the existing enterprises having ARPs showed a tendency for increased rate of fuel gas consumption for its own needs, which is associated not only with unsteady composition of the feedstock, increased degree of processing of the latter, and improved quality of the obtained products, but also with low degree of utilization of the heat of the regenerated absorbent and lack of technical solutions for utilization of fuel wastes (gases from degassing and regeneration) and effluents. One of the ways of reducing gas consumption for inherent needs, augmenting energy efficiency of the ARP, optimizing its fuel balance, and reducing gas preparation cost is to develop fuel waste utilization technology and appropriate nonstandard equipment. The developed fuel waste utilizing plant reduces fuel consumption rate for absorbent regeneration and toxicity of discharged flue gases and increases overhaul life of the equipment [1]. The process flow diagram of one version of the ARP as a component of gas drying plants is illustrated in Fig. 2. The energy efficiency of the developed ARP is enhanced by using the degassing gases as the fuel, the pressure differential of the saturated absorbent flow in the expander-generator with generation of electric power for heating of the absorbent before degassing, improving separation of the saturated absorbent and the gas condensate in the degasser-separator and the regenerated absorbent tank with removal of the gas condensate through a separate line, and by neutralizing the industrial effluents (equipment wash water, and water separated from the drying unit and the top product of the regeneration column of the evaporator).