Replacing an Existing Product's Production Within a Similar Product Production by Using a Replacement Technique

Anita Kovač Kralj, Dejan Bencik

Abstract


Existing processes for specific products cannot sustain operational profitably over a long period. The product’s price is not much higher than the raw material costs and it is necessary to make certain modifications by using savings or replacements during product production. In our case, the production of methanol having a low market value would be replaced by the production of dimethyl ether (DME). This would create greater demand, especially from the environmental perspective, and can be achieved by using replacement technique. We want to keep and transfer as many of the existing units from the previous production to the new production. Dimethyl ether is an organic compound with the formula CH3OCH3.  It is a colourless gas that is a useful precursor to other organic compounds, and an aerosol propellant. DME can act as a clean fuel when burned in engines properly optimized for DME. The direct production of DME would be cheaper than indirect when applied for new buildings. The same applies for retrofits, or the replacing of existing methanol - specific production – a similar DME product plant would be more rational for the direct production of DME, because of greater efficiency, productivity of DME production, profit, and for 20 % more electricity generation.

Key words: Dimetyl ether; Replacement; Methanol process; Indirect method; Direct method; Retrofit


Keywords


Key words: Dimetyl ether; Replacement; Methanol process; Indirect method; Direct method; Retrofit

Full Text:

PDF

References


[1] Maroteaux, F., Descombes, G., & Sauton, F. (2001). Performance and Exhaust Emissions of a Diesel Engine Running with DME. Proceedings of the 2001 ICE Spring Technical Conference, 1, 73–81.

[2] Japan DME Forum. (2007). DME Handbook.

[3] Weidou N., Lijian, T., & Dewei F. (2006). Rational Cognition of DME Market in China. Proceedings of 3rd Asian DME Conference, 21–38.

[4] Arcoumanis C., Bae, C., Crookes, R., & Kinoshita, E. (2008). The Potential of Di-Methyl Ether (DME) as an Alternative Fuel for Compression-Ignition Engines: A Review. Fuel, 87, 1014–1030.

[5] Longbao Z., Hewu, W., Deming, H., & Zuohua, H. (1999). Study of Performance and Combustion Characteristics of a DME-Fueled Light-Duty Direct-Injection Diesel Engine. SAE Paper 1999-01-3669.

[6] Kapus P., & Ofner, H. (1995). Development of Fuel Injection Equipment and Combustion System for DI Diesels Operated on Dimethyl Ether. SAE Paper 950062.

[7] Wu J., Huang, Z., Qiao, X., Lu J., Zhang, L., & Zhang, J. (2006). Combustion and Emission Characteristics of a Turbocharged Diesel Engine Fuelled with Dimethyl Ether. International Journal of Automotive Technology, 7(6), 645–652.

[8] Ge Q., Huang, Y., Qiu, F., & Li, S. (1998). Bifunctional Catalysts for Conversion of Synthesis Gas to DME. Appl. Catal., 167, 23–30.

[9] Nie Zh., Liu H., Liu D., Ying W. & Fang, D. (2005). Intrinsic Kinetics of Dimethyl Ether Synthesis from Syngas. J. Nat. Gas Chem., 14(1), 22–28.

[10] Fukunaga T., Ryumon, N., & Shimazu S. (2008). The Influence of Metals and Acidic Oxide Species on the Steam Reforming of Dimethyl Ether (DME). Appl. Catal. A, 348, 193–200.

[11] Tan Y., Xie, H., Cui, H., Han, Y., & Zhong (2005). Modification of Cu-Based Methanol Synthesis Catalyst for Dimethyl Ether Synthesis from Syngas in Slurry Phase. Catal. Today, 104, 25–29.

[12] Nasehi S.M., Eslamlueyan, R., & Jahanmiri A. (2006). Simulation of DME Reactor from Methanol. Proceedings of the 11th Chemical Engineering Conference Iran, Kish Island.

[13] Song D., Cho, W., Lee, G., Park, D.K., & Yoon, E.S. (2008). Numerical Analysis of a Pilot-Scale Fixed-Bed Reactor for Dimethyl Ether (DME) Synthesis. Ind. Eng. Chem. Res., 47(13), 4553–4559.

[14] Hu Y., Nie, Z., & Fang, D. (2008). Simulation and Model Design of Pipe-Shell Reactor for the Direct Synthesis of Dimethyl Ether from Syngas. J. Nat. Gas Chem., 17(2), 195–200.

[15] McKetta, J.J., & Cunningham, W.A. (1985). Encyclopedia of Chemical Processing and Design, 29, 418-474.

[16] Aspen Technology (2002). ASPEN PLUS User Manual Release 11.1. Cambridge, USA: Aspen Technology Inc.




DOI: http://dx.doi.org/10.3968%2Fj.est.1923847920110202.103

Refbacks

  • There are currently no refbacks.


Reminder

If you have already registered in Journal A and plan to submit article(s) to Journal B, please click the CATEGORIES, or JOURNALS A-Z on the right side of the "HOME".


We only use three mailboxes as follows to deal with issues about paper acceptance, payment and submission of electronic versions of our journals to databases: caooc@hotmail.com; est@cscanada.net; est@cscanada.org

Copyright © 2010 Canadian Research & Development Centre of Sciences and Cultures
Address: 730, 77e AV, Laval, Quebec, H7V 4A8, Canada

Telephone: 1-514-558 6138
Http://www.cscanada.net Http://www.cscanada.org

E-mail: est@cscanada.net est@cscanada.org