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Volume 2, Issue 2, Pages (February 2018)

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1 Volume 2, Issue 2, Pages 349-365 (February 2018)
A General Framework for the Evaluation of Direct Nonoxidative Methane Conversion Strategies  Kefeng Huang, James B. Miller, George W. Huber, James A. Dumesic, Christos T. Maravelias  Joule  Volume 2, Issue 2, Pages (February 2018) DOI: /j.joule Copyright © 2018 Elsevier Inc. Terms and Conditions

2 Joule 2018 2, DOI: ( /j.joule ) Copyright © 2018 Elsevier Inc. Terms and Conditions

3 Figure 1 Methane Conversion Scheme
Joule 2018 2, DOI: ( /j.joule ) Copyright © 2018 Elsevier Inc. Terms and Conditions

4 Figure 2 Process Flowsheet of Nonoxidative Strategy
Detailed base case stream information and column conditions are given in Table S1. Joule 2018 2, DOI: ( /j.joule ) Copyright © 2018 Elsevier Inc. Terms and Conditions

5 Figure 3 Block Flow Diagram of Methane Conversion Process
(A and B) Material (A) and energy balances (B) for base case design. Joule 2018 2, DOI: ( /j.joule ) Copyright © 2018 Elsevier Inc. Terms and Conditions

6 Figure 4 Cost Contribution per Process Section and Revenue Contribution per Product Joule 2018 2, DOI: ( /j.joule ) Copyright © 2018 Elsevier Inc. Terms and Conditions

7 Figure 5 Impact of Key Process Variables on Process Economics
(A–D) Impact of methane one-pass conversion and (A) conversion temperature on NPV, (B) hydrocarbon products selectivity/coke selectivity on NPV, (C) ethylene selectivity in hydrocarbon products on NPV, and (D) ethylene selectivity in hydrocarbon products on MESP. Joule 2018 2, DOI: ( /j.joule ) Copyright © 2018 Elsevier Inc. Terms and Conditions

8 Figure 6 Impact of Catalyst Cost on Process Economics
(A and B) The NPV as a function of catalyst material cost and space velocity for (A) base case and (B) Fe©SiO2 catalyst. Joule 2018 2, DOI: ( /j.joule ) Copyright © 2018 Elsevier Inc. Terms and Conditions

9 Figure 7 Impact of Variable Catalyst Cost on Process Viability
Joule 2018 2, DOI: ( /j.joule ) Copyright © 2018 Elsevier Inc. Terms and Conditions

10 Figure 8 Impact of Market Conditions on Process Viability
(A and B) Viability envelope for (A) base case and (B) process with 48.1% methane one-pass conversion. Joule 2018 2, DOI: ( /j.joule ) Copyright © 2018 Elsevier Inc. Terms and Conditions

11 Figure 9 Impact of Capital Costs and Plant Scale on Process Economics
(A) Viability envelope in terms of ethylene and natural gas prices for variation of capital costs. (B) NPV, IRR, and MESP as a function of plant scale (natural gas feed rate). Joule 2018 2, DOI: ( /j.joule ) Copyright © 2018 Elsevier Inc. Terms and Conditions


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