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Energy-use analysis and evaluation of distillation systems through avoidable exergy destruction and investment costs

Wei, Zhiqiang; Zhang, Bingjian; Wu, Shengyuan; Chen, Qinglin - In: Energy 42 (2012) 1, pp. 424-433

exergy analysis and an exergoeconomic evaluation to identify the potential energy savings in distillation processes. Methods … for calculating the avoidable/unavoidable exergy destructions and investment costs for distillation columns, and hot …-utility/cold-utility heat exchangers are proposed. For a distillation column, the unavoidable exergy destruction is estimated through the …

Persistent link: https://www.econbiz.de/10010807891

Design and control of an ideal heat-integrated distillation column (ideal HIDiC) system separating a close-boiling ternary mixture

Huang, Kejin; Shan, Lan; Zhu, Qunxiong; Qian, Jixin - In: Energy 32 (2007) 11, pp. 2148-2156

Despite the fact that a stand-alone ideal heat-integrated distillation column (ideal HIDiC) can be thermodynamically …

Persistent link: https://www.econbiz.de/10010809321

Integration of thermal energy and seawater desalination

Deng, Runya; Xie, Lixin; Lin, Hu; Liu, Jie; Han, Wei - In: Energy 35 (2010) 11, pp. 4368-4374

Energy and freshwater shortage are the bottlenecks restricting China's economic development. The integration of energy utilization system and seawater desalination is considered as an innovative technology enabling efficient simultaneous use of middle or low temperature thermal energy and supply...

Persistent link: https://www.econbiz.de/10010811006

A new and applicable method to calculate mass and heat transfer coefficients and efficiency of industrial distillation columns containing structured packings

Sadeghifar, Hamidreza; Kordi, Safe; Akbar, Ali - In: Energy 36 (2011) 3, pp. 1415-1423

Most of the methods developed for efficiency estimation of distillation columns were based on the empirical mass … efficiency (and mass and heat transfer coefficients) of distillation columns containing structured packings. This method has … of any structured packing, including new ones, in distillation columns. …

Persistent link: https://www.econbiz.de/10010811338

Theory and experimental investigation of a weir-type inclined solar still

Sadineni, S.B.; Hurt, R.; Halford, C.K.; Boehm, R.F. - In: Energy 33 (2008) 1, pp. 71-80

A weir-type solar still is proposed to recover rejected water from the water purifying systems for solar hydrogen production. This consists of an inclined absorber plate formed to make weirs, as well as a top basin and a bottom basin. Water is flowed from the top basin over the weirs to the...

Persistent link: https://www.econbiz.de/10010811339

Performance and cost evaluation of a new double-effect integration of multicomponent bioethanol distillation

Bessa, Larissa C.B.A.; Ferreira, M.C.; Batista, Eduardo A.C. - In: Energy 63 (2013) C, pp. 1-9

efforts to achieve a low-carbon emissions world. Since distillation accounts for a large part of total energy consumption by …

Persistent link: https://www.econbiz.de/10011053192

Exergy analysis of an experimental heat transformer for water purification

Rivera, W.; Huicochea, A.; Martínez, H.; Siqueiros, J.; … - In: Energy 36 (2011) 1, pp. 320-327

First and second law of thermodynamics have been used to analyze the performance of an experimental heat transformer used for water purification. The pure water is produced in the auxiliary condenser delivering an amount of heat, which is recycled into the heat transformer increasing the heat...

Persistent link: https://www.econbiz.de/10011053346

Economic optimization of heat pump-assisted distillation columns in methanol-water separation

Shahandeh, Hossein; Jafari, Mina; Kasiri, Norollah; … - In: Energy 80 (2015) C, pp. 496-508

Finding efficient alternative to CDiC (Conventional Distillation Column) for methanol-water separation has been an … find the optimal one; (1) VRC (Vapor Recompression Column), (2) external HIDiC (Heat-Integrated Distillation Column), (3 …

Persistent link: https://www.econbiz.de/10011190934

Ethylene separation by feed-splitting from light gases

Salerno, Daniel; Arellano-Garcia, Harvey; Wozny, Günter - In: Energy 36 (2011) 7, pp. 4518-4523

processes, which uses distillation columns up to 100 m tall and containing over 100 trays due to very small differences in the … distillation columns with condenser temperatures significantly below room temperature, such as in ethylene separation towers, it is …

Persistent link: https://www.econbiz.de/10011054221

Conceptual design of an internally heat integrated propylene-propane splitter

Olujić, Ž.; Sun, L.; de Rijke, A.; Jansens, P.J. - In: Energy 31 (2006) 15, pp. 3083-3096

Huge quantities of energy are required in distillation columns used for polymer grade separations of close boiling …

Persistent link: https://www.econbiz.de/10011054291