Influence of process parameters on oxidative coupling of methane for ethylene production from biogas

2020 ◽  
Vol 92 (9) ◽  
pp. 1348-1348
Author(s):  
A. Perez Ortiz ◽  
A. Penteado ◽  
L. Thum ◽  
T. Karsten ◽  
E. Esche ◽  
...  
Keyword(s):  
Process Parameters ◽  
Ethylene Production ◽  
Oxidative Coupling ◽  
Oxidative Coupling Of Methane ◽  
Influence Of Process Parameters

scholarly journals Oxidative Coupling of Methane for Ethylene Production: Reviewing Kinetic Modelling Approaches, Thermodynamics and Catalysts

Processes ◽  
2021 ◽  
Vol 9 (12) ◽  
pp. 2196
Author(s):  
Simoní Da Ros ◽  
Tahyná Barbalho Fontoura ◽  
Marcio Schwaab ◽  
Normando José Castro de Jesus ◽  
José Carlos Pinto
Keyword(s):  
Ethylene Production ◽  
Oxidative Coupling ◽  
Kinetic Modelling ◽  
Chemical Reactor ◽  
Oxidative Coupling Of Methane ◽  
Economic Feasibility ◽  
Executive Summary ◽  
Wide Range ◽  
Kinetic Mechanisms ◽  
Reactor Models

Ethylene production via oxidative coupling of methane (OCM) represents an interesting route for natural gas upscaling, being the focus of intensive research worldwide. Here, OCM developments are analysed in terms of kinetic mechanisms and respective applications in chemical reactor models, discussing current challenges and directions for further developments. Furthermore, some thermodynamic aspects of the OCM reactions are also revised, providing achievable olefins yields in a wide range of operational reaction conditions. Finally, OCM catalysts are reviewed in terms of respective catalytic performances and thermal stability, providing an executive summary for future studies on OCM economic feasibility.

scholarly journals Economic Potential of Bio-Ethylene Production via Oxidative Coupling of Methane in Biogas from Anaerobic Digestion of Industrial Effluents

Processes ◽  
2021 ◽  
Vol 9 (9) ◽  
pp. 1613
Author(s):  
Alberto Teixeira Penteado ◽  
Giovanna Lovato ◽  
Abigail Pérez Ortiz ◽  
Erik Esche ◽  
José Alberto Domingues Rodrigues ◽  
...  
Keyword(s):  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Anaerobic Digestion ◽  
Ethylene Production ◽  
Oxidative Coupling ◽  
Production Cost ◽  
Oxidative Coupling Of Methane ◽  
Operating Conditions ◽  
Absorption Process ◽  
Sales Price

Brazil’s large biofuels industry generates significant amounts of effluents, e.g., vinasse from bioethanol, that can effectively be used as substrate for production of biogas via Anaerobic Digestion (AD). The Oxidative Coupling of Methane (OCM) is the heterogeneous catalytic oxidation of methane into ethylene, which is a main building block for the chemical industry. This work investigates the potential and competitiveness of bio-ethylene production via OCM using biogas produced by biological anaerobiosis of vinasse as a feedstock. The proposed process can add incentive to treat of vinasse via AD and replace fossil ethylene, thus potentially reducing emissions of Greenhouse Gases (GHG). A process model is developed in Aspen Plus v10 software and used to design an economic Biogas-based Oxidative Coupling of Methane (Bio-OCM) process that consumes biogas and oxygen as educts and produces ethylene, ethane, and light off-gases as products. Operating conditions in the reaction section are optimized and a reaction product yield of 16.12% is reached by applying two adiabatic Packed Bed Reactors (PBRs) in series. For the downstream CO2 removal section, a standalone amine-absorption process is simulated and compared to a hybrid membrane-absorption process on an economic basis. For the distillation section, two different configurations with and without Recycle Split Vapor (RSV) are simulated and compared. The bio-ethylene production cost for a Bio-OCM plant to be installed in Brazil is estimated considering a wide range of prices for educts, utility, side products, and equipment within a Monte Carlo simulation. The resulting average production cost of bio-ethylene is 0.53 ±0.73 USD.kgC2H4-1. The production cost is highly sensitive to the sales price assigned to a light off-gas side-product stream containing mostly the un-reacted methane. A sales price close to that of Brazilian pipeline natural gas has been assumed based on the characteristics of this stream. The Monte Carlo simulation shows that a bio-ethylene production cost below or equal to 0.70 USD.kgC2H4-1 is achieved with a 55.2% confidence, whereas market values for fossil ethylene typically lie between 0.70USD.kgC2H4-1–1.50USD.kgC2H4-1. Technical and economic challenges for the industrial implementation of the proposed Bio-OCM process are identified and relevant opportunities for further research and improvement are discussed.

Techno-economic evaluation of a biogas-based oxidative coupling of methane process for ethylene production

2018 ◽  
Vol 12 (4) ◽  
pp. 598-618 ◽  
Author(s):  
Alberto T. Penteado ◽  
Mijin Kim ◽  
Hamid R. Godini ◽  
Erik Esche ◽  
Jens-Uwe Repke
Keyword(s):  
Economic Evaluation ◽  
Ethylene Production ◽  
Oxidative Coupling ◽  
Oxidative Coupling Of Methane
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