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Figure 1 is a preliminary process flow diagram (PFD) for the dimethyl ether (DME) production process. The raw material is pure methanol. The methanol feed may be assumed pure liquid at 1 bar. The feed and recycle stream are vaporized before being sent to the reactor (R-01) in which DME and water are formed. This reaction is shown below. The reactor effluent is then cooled before being sent to a distillation column (T-201) where DME is removed in stream 10 and the other stream is sent to a second column (T-202) separated the water and unused methanol. Stream 14/15 is then sent for treatment, while stream 13 is sent to be recycled. Stream 10 should produce 99.5% pure DME. The desired DME production rate is 50,000 metric tons/year. Process Details Feed Streams Stream 1: methanol, liquid, 25°C and 1 bar Effluent Streams Stream 10: waste gas stream to incinerator, dimethyl ether produce, 99.5% purity Stream 15: wastewater stream, must contain less than 0.05 wt % DME and Methanol. An additional separation unit of your choice is permitted to help meet this requirement.

Figure 1 is a preliminary process flow diagram (PFD) for the dimethyl ether (DME) production process. The raw material is pure methanol. The methanol feed may be assumed pure liquid at 1 bar. The feed and recycle stream are vaporized before being sent to the reactor (R-01) in which DME and water are formed. This reaction is shown below. The reactor effluent is then cooled before being sent to a distillation column (T-201) where DME is removed in stream 10 and the other stream is sent to a second column (T-202) separated the water and unused methanol. Stream 14/15 is then sent for treatment, while stream 13 is sent to be recycled. Stream 10 should produce 99.5% pure DME. The desired DME production rate is 50,000 metric tons/year. Process Details Feed Streams Stream 1: methanol, liquid, 25°C and 1 bar Effluent Streams Stream 10: waste gas stream to incinerator, dimethyl ether produce, 99.5% purity Stream 15: wastewater stream, must contain less than 0.05 wt % DME and Methanol. An additional separation unit of your choice is permitted to help meet this requirement.

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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Could you help make figure 1? A pfd for the process discussed

Figure 1 is a preliminary process flow diagram (PFD) for the dimethyl ether (DME) production process. The raw material is pure methanol. The methanol feed may be assumed pure liquid at 1 bar. The feed and recycle stream are vaporized before being sent to the reactor (R-01) in which DME and water are formed. This reaction is shown below. The reactor effluent is then cooled before being sent to a distillation column (T-201) where DME is removed in stream 10 and the other stream is sent to a second column (T-202) separated the water and unused methanol. Stream 14/15 is then sent for treatment, while stream 13 is sent to be recycled. Stream 10 should produce 99.5% pure DME. The desired DME production rate is 50,000 metric tons/year. Process Details Feed Streams Stream 1: methanol, liquid, 25°C and 1 bar Effluent Streams Stream 10: waste gas stream to incinerator, dimethyl ether produce, 99.5% purity Stream 15: wastewater stream, must contain less than 0.05 wt % DME and Methanol. An additional separation unit of your choice is permitted to help meet this requirement.
Transcribed Image Text:Figure 1 is a preliminary process flow diagram (PFD) for the dimethyl ether (DME) production process. The raw material is pure methanol. The methanol feed may be assumed pure liquid at 1 bar. The feed and recycle stream are vaporized before being sent to the reactor (R-01) in which DME and water are formed. This reaction is shown below. The reactor effluent is then cooled before being sent to a distillation column (T-201) where DME is removed in stream 10 and the other stream is sent to a second column (T-202) separated the water and unused methanol. Stream 14/15 is then sent for treatment, while stream 13 is sent to be recycled. Stream 10 should produce 99.5% pure DME. The desired DME production rate is 50,000 metric tons/year. Process Details Feed Streams Stream 1: methanol, liquid, 25°C and 1 bar Effluent Streams Stream 10: waste gas stream to incinerator, dimethyl ether produce, 99.5% purity Stream 15: wastewater stream, must contain less than 0.05 wt % DME and Methanol. An additional separation unit of your choice is permitted to help meet this requirement.
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