Modified Two-Step Dimethyl Ether (DME) Synthesis Simulation from Indonesian Brown Coal | Zendy

Dwiwahju Sasongko | Zendy; Abdurrahman Fadhlil Halim Luthan | Zendy; Winny Wulandari | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Modified Two-Step Dimethyl Ether (DME) Synthesis Simulation from Indonesian Brown Coal

Author(s) -

Dwiwahju Sasongko,

Abdurrahman Fadhlil Halim Luthan,

Winny Wulandari

Publication year - 2016

Publication title -

journal of engineering and technological sciences

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.202

H-Index - 14

eISSN - 2338-5502

pISSN - 2337-5779

DOI - 10.5614/j.eng.technol.sci.2016.48.3.6

Subject(s) - dimethyl ether , coal , syngas , chemistry , raw material , bar (unit) , chemical engineering , organic chemistry , catalysis , engineering , meteorology , physics

A theoretical study was conducted to investigate the performance of dimethyl ether (DME) synthesis from coal. This paper presents a model for two-step DME synthesis from brown coal represented by the following processes: drying, gasification, water-gas reaction, acid gas removal, and DME synthesis reactions. The results of the simulation suggest that a feedstock ratio of coal : oxygen : steam of 1 : 0.13 : 0.821 produces the highest DME concentration. The water-gas reactor simulation at a temperature of 400°C and a pressure of 20 bar gave the ratio of H2/CO closest to 2, the optimal value for two-step DME synthesis. As for the DME synthesis reactor simulation, high pressure and low temperature promote a high DME concentration. It is predicted that a temperature of 300°C and a pressure of 140 bar are the optimum conditions for the DME synthesis reaction. This study also showed that the DME concentration produced by the two-step route is higher than that produced by one-step DME synthesis, implying that further improvement and research are needed to apply two-step DME synthesis to production of this liquid fuel

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research