ASPEN Plus simulation of coal integrated gasification combined blast furnace slag waste heat recovery system

Duan, Wenjun; Yu, Qingbo; Wang, Kun; Qin, Qin; Hou, Limin; Yao, Xin; Wu, Tianwei

doi:10.1016/j.enconman.2015.04.066

Cited by 132 publications

(37 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The heat exchanger is designed to cool the hot syngas from the gasifier to produce warm air using a MHeatX unit in the Aspen Plus [35]. Moreover, the boiler has an energy efficiency of 90%, which is simulated by a RGibbs reactor [36], works under 900 • C with 20% excess air according to a typical fluidized bed boiler design [37]. Rankine cycle is used to generate power in both systems, with an initial temperature of 566 • C and an initial pressure of 16.5 MPa [38].…”

Section: Models Of Other Unitsmentioning

confidence: 99%

Clean Poultry Energy System Design Based on Biomass Gasification Technology: Thermodynamic and Economic Analysis

et al. 2019

View full text Add to dashboard Cite

Despite growing attention has been paid to waste material gasification for high-efficiency energy conversion, the application of gasification technology in meat waste management is still limited. To fill this gap, this study designed two systems which evaluated the potential of using gasification technology to manage the poultry waste that has been exposed to highly pathogenic avian influenza (HPAI). Two systems are simulated by using Aspen plus combined with a one-dimensional kinetics control gasification model, and wood or dried poultry is selected as the feedstock for the gasifier. The results show that the energy efficiency of the poultry drying system (wood gasification) is 14.5%, which is 12% lower than that of the poultry gasification system when the poultry energy is accounted as energy input. Even though the economic analysis indicates the poultry elimination cost of the poultry gasification system is only 30 $/tonne lower than the poultry drying system, taking the absence of dried poultry burial into consideration, the poultry gasification system has development potentials. The sensitivity analysis shows that labor fee and variable factor has larger effects on the poultry elimination cost, while the uncertainty analysis determines the uncertainty level of the economic analysis results.

show abstract

Section: Models Of Other Unitsmentioning

confidence: 99%

Clean Poultry Energy System Design Based on Biomass Gasification Technology: Thermodynamic and Economic Analysis

et al. 2019

View full text Add to dashboard Cite

show abstract

“…And the gasification processes were always carried out at the atmospheric pressure in the literatures [1,11,31]. According to Le Chatelier's principle, negative operation pressure is conducive to this process.…”

Section: Gasification Characteristicmentioning

confidence: 99%

“…However, negative pressure brings the problems of equipment manufacturing and production safety. And the gasification processes were always carried out at the atmospheric pressure in the literatures [1,11,31]. In this study, the thermodynamic equilibrium calculations were atmospheric.…”

Section: Gasification Characteristicmentioning

confidence: 99%

Thermodynamic modeling of the combined CLG–CLHG system for syngas and hydrogen generation

Wang

Qin

et al. 2017

Env Prog and Sustain Energy

Self Cite

View full text Add to dashboard Cite

The combined CLG and CLHG is a novel technology for the co‐generation of syngas and H2‐riched gas. In CLG process, the reduction of oxygen carrier with biomass can produce syngas. In CLHG process, the oxidation of oxygen carrier with steam can produce H2‐riched gas. In this study, the Ce‐based oxygen carrier was selected as the candidate material based on the Gibbs free energy changes (ΔG) of the splitting water reactions. The redox mechanism of the Ce‐based oxygen carrier was discussed and thermodynamic analysis of syngas and hydrogen generation was performed by Gibbs free energy minimization method. The optimal O/C in the GR was determined as 0.6–0.8 and the total dry concentration of CO and H2 was higher than 95.0% under 850–1000°C. The optimal S/C in the SR was determined as 2–3 and the H2 fraction was higher than 70.0% under 850–1000°C. In the AR, all of the Ce oxides can be regenerated to CeO2 in the air flow of 0.5 kmol at 700°C. After one CLG–CLHG cycle, there was no carbon deposition on the surface of oxygen carrier. The redox mechanism of the Ce‐based oxygen carrier was defined as: CeO2↔CeO1.83↔CeO1.72↔Ce2O3. © 2017 American Institute of Chemical Engineers Environ Prog, 37: 1132–1139, 2018

show abstract

“…Luyben [23] simulated HEs with phase changes, namely a condenser and an evaporator, for low-level energy recovery with n-hexane as a working fluid. Duan et al [24] analysed coal gasification, which included a gasifier and a boiler to recover steam and blast furnace slag. Ishaq et al [25] modelled a trigeneration system for electricity, hydrogen and fresh water production from the flue gas of a glass melting furnace.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Concepts to Increase the Dew Point Temperature for Thermal Energy Recovery from Flue Gas, Using Aspen®

et al. 2019

View full text Add to dashboard Cite

Thermal energy of flue gases (FG) dissipating from industrial facilities into the environment, constitute around 20% of the total dissipated thermal energy. Being part of the FG, water vapour carries thermal energy out of the system in the form of the latent heat, which can be recovered by condensation, thus increasing the overall efficiency of an industrial process. The limiting factor in this case is the low dew point temperature (usually 40-60 • C) of the water vapour in the FG. The increase of the dew point temperature can be achieved by increasing the water content or pressure. Taking these measures as a basis, the presented work investigated the following concepts for increasing the dew point temperature: humidification of the flue gas using water, humidification using steam, compression of the FG and usage of the steam ejector. Modelling of these concepts was performed using the commercial software Aspen ® . The humidification of the FG using water resulted in the negligible increase in the dew point (3 • C). Using steam humidification the temperatures of up to 92 • C were reached, while the use of steam ejector led to few degrees higher dew point temperatures. However, both concepts proved to be energy demanding, due to the energy requirements for the steam generation. The FG compression enabled the achievement of a 97 • C dew point temperature, being both energy-efficient and exhibiting the lowest energy cost. Energies 2019, 12, 1585 2 of 17 Energies 2019, 12, 1585 13 of 17repair costs of the compressor are normally higher than the equipment used in the other proposed concepts and should be taken into account in the future work.

show abstract

ASPEN Plus simulation of coal integrated gasification combined blast furnace slag waste heat recovery system

Cited by 132 publications

References 44 publications

Clean Poultry Energy System Design Based on Biomass Gasification Technology: Thermodynamic and Economic Analysis

Clean Poultry Energy System Design Based on Biomass Gasification Technology: Thermodynamic and Economic Analysis

Thermodynamic modeling of the combined CLG–CLHG system for syngas and hydrogen generation

Investigation of the Concepts to Increase the Dew Point Temperature for Thermal Energy Recovery from Flue Gas, Using Aspen®

Contact Info

Product

Resources

About