![]() ![]() Wei et al.( 40) presented an exergy analysis and anĮxergoeconomic evaluation to identify the energy-saving potentials Two-level idealization concept involving the definition of intrinsicĪnd extrinsic exergy destruction to incorporate into exergy analysis,Įxergoeconomic analysis, and optimization, and it was demonstratedīy an ethylene product recovery and separation plant together withĪ benzene–toluene distillation column. Is whether the process streams undergo multicomponent phase separation 39− 47 The major difference between the former and the latter applications Performance of the power generation processes in the beginning 17− 38 and then expanded to the other fields such as petroleum-based orĬoal-based chemical processes. 17− 47 Exergy analysis is widely applied to evaluate the thermodynamic Individual equipment ( e.g., fractionator, 10 compressor, 11 internalĬombustion engine, 12 biomass boiler, 13 industrial boiler, 14 gasifier, 15 and wind turbine 16) and processes. ![]() 9 TheĪdvanced exergy analysis is widely used in evaluating and optimizing Particularly when this concept is combined with the concept of avoidableĪnd unavoidable exergy destructions. Improves our understanding of the interactions among the system components, The main role of an advanced analysis is to provide the designersĪnd operators for energy conversion systems with useful informationįor improving the design and operation of such systems.Įxergy destruction into endogenous and exogenous parts It has many benefits for detailed analysis of energy conversion systems. Or external sources of irreversibilities in the system components. Different fromĬonventional analysis methods, 8 the advancedĮxergy analysis is an efficient approach to identify the internal The heat removals of the main fractionator in DCUs. Then, they 7 pointed out based on an exergyĪnalysis that there was a great potential for energy-saving by improving Utilization problems of an aromatic hydrocarbon separation plant. 5 Chen et al.( 6) used exergyĪnd exergoeconomic analysis method to tackle the expansion and energy Information for improving the overall system efficiency by focusing Of thermodynamic inefficiencies in a system, which provides the critical Process could achieve high energy efficiency.Ĭan identify the sources, magnitude, and location Compared with the conventional process, the proposed Reboiler were integrated into the original process and then a heat In the new process, a condenser, a condensed oil tank, and a side Process with a two-stage condensation to improve energy performance. 1, 4 Liu et al.( 4) proposed a new absorption–stabilization Many studies have focused on process intensificationĪnd simplification for a better economic, environmental, and energyĮfficiency performance. It is desirable but challenging to intensify and simplify thisĬomplex process. Resulting in a rather complex process with high total annual cost 3 The productsĪre dry gas, liquefied petroleum gas (LPG), and stabilized gasoline.Ī conventional GASP contains four columns and two recycling streams, ![]() The main fractionators in fluid catalytic cracking units (FCCUs) orĭelayed coking units (DCUs). 2 The feeds to GASPs are crude gasoline and rich gas from Than 140 million tons of gasoline throughput in China. Processes (GASPs) are widely applied for the separation of gasoline Furthermore, a sensitivityĪnalysis of the new GASP is performed to study the effects of newlyĪdded operation and design parameters on the conventional and advancedĪs a core operation in crude oil refining, gasoline absorption–stabilization GASP has the largest potential for reducing exergy destruction, which In both the processes, the air cooler for the rich gas in the new Though the stabilizer has the largest exergy destruction The total exergy destructions of 46.37 and 40.73% can be reduced, Total exergy destruction rates are 7.79 and 6.01 MW, respectively. The exergy efficiencies of conventionalĪnd new GASPs are 65.04 and 71.44%, respectively. The energy performance of both conventional and new GASPs is evaluated In PRO/II, which are verified with the actual plant operation data. Both conventional and new GASPs are simulated The absorption process intensification, which can be further explained Process (GASP) is proposed for better energy utilization considering In this work, a new gasoline absorption–stabilization Of each component and the interaction among components of the refining Analysis can identify the improved potential ![]()
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