Experimental validation of pressure swing regeneration for faster cycling in sorption enhanced dimethyl ether synthesis

Kampen, Jasper van; Booneveld, Saskia; Boon, Jurriaan; Vente, Jaap F.; Annaland, Martin van Sint

doi:10.1039/d0cc06093c

Cited by 18 publications

(16 citation statements)

References 12 publications

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“…Although several routes exist and are currently in operation for the industrial synthesis of DME (Müller and Hübsch, 2000;Azizi et al, 2014), separation-enhanced synthesis routes have shown to offer major advantages in the conversion of carbon dioxide to chemicals . In fact, sorptionenhanced DME synthesis (SEDMES) has proven to yield a very high single-pass carbon selectivity to DME (Iliuta et al, 2011;van Kampen et al, 2020a;van Kampen et al, 2020b;van Kampen et al, 2020c). In this novel technology, steam is adsorbed in situ to overcome the thermodynamic limits of the reactions involved, resulting in the high single-pass DME yield.…”

Section: Introductionmentioning

confidence: 99%

The Techno-Economic Benefit of Sorption Enhancement: Evaluation of Sorption-Enhanced Dimethyl Ether Synthesis for CO2 Utilization

Skorikova¹,

Šarić²,

Sluijter³

et al. 2020

Front. Chem. Eng.

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Dimethyl ether (DME) is an important platform chemical and fuel that can be synthesized from CO2 and H2 directly. In particular, sorption-enhanced DME synthesis (SEDMES) is a novel process that uses the in situ removal of H2O with an adsorbent to ensure high conversion efficiency in a single unit operation. The in situ removal of steam has been shown to enhance catalyst lifetime and boost process efficiency. In addition, the hydrogen may be supplied through water electrolysis using renewable energy, making it a promising example of the (indirect) power-to-X technology. Recently, major advances have been made in SEDMES, both experimentally and in terms of modeling and cycle design. The current work presents a techno-economic evaluation of SEDMES using H2 produced by a PEM electrolyzer. A conceptual process design has been made for the conversion of CO2 and green H2 to DME, including the purification section to meet ISO fuel standards. By means of a previously developed dynamic cycle model for the SEDMES reactors, a DME yield per pass of 72.4 % and a carbon selectivity of 84.7% were achieved for the studied process design after optimization of the recycle streams. The production costs for DME by the power-to-X technology SEDMES process at 23 kt/year scale are determined at ∼€1.3 per kg. These costs are higher than the current market price but lower than the cost of conventional DME synthesis from CO2. Factors with the highest impact on the business cases are the electricity and CO2 cost price as well as the CAPEX of the electrolyzer, which is considered an important component for technology development. Furthermore, as the H2 cost constitutes the largest part of the DME production cost, SEDMES is demonstrated to be a powerful technology for efficient conversion of green H2 into DME.

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Section: Introductionmentioning

confidence: 99%

The Techno-Economic Benefit of Sorption Enhancement: Evaluation of Sorption-Enhanced Dimethyl Ether Synthesis for CO2 Utilization

Skorikova¹,

Šarić²,

Sluijter³

et al. 2020

Front. Chem. Eng.

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“…Even if the macropore diameter would be a factor ten smaller (0.1 μm), the micropore resistance would make up more than 95% of the 8 GSTA model prediction (line) for low temperature data at a partial pressure of 2.337 kPa from Ghodhbene et al (Ghodhbene et al 2017) total mass transfer resistance. Also the practical adsorbent pellet size can vary, affecting the external film resistance and mainly the macropore resistance due to the quadratic dependence, which has been shown to influence the overall mass transfer coefficient significantly (Simo et al 2009;Terreni et al 2018). Experiments with varying pellet size would clarify the relative contribution of the different mass transfer resistances.…”

Section: Adsorbate Mass Transfermentioning

confidence: 99%

“…Experiments with varying pellet size would clarify the relative contribution of the different mass transfer resistances. In addition, direct imaging could be a powerful technique to circumvent possible issues arising from this, and is a good addition to the existing experimental methods (Terreni et al 2018;Sircar 2007). As shown by the difference between the graphs in Fig.…”

Section: Adsorbate Mass Transfermentioning

confidence: 99%

“…Even so, the production and efficient handling of steam remains a major bottleneck for industrial CO 2 utilization (Centi and Perathoner 2009; Accelerating Breakthrough Innovation in Carbon Capture 2017; Katelhon et al 2019). In this context, several groups have experimentally demonstrated the benefit of sorption enhancement in terms of product yield that exceeds the thermodynamic equilibrium in absence of steam adsorption (van Kampen et al ,2020aKim et al 2001;Carvill et al 1996;Borgschulte et al 2013;Ressler et al 2006;Choi et al 2002;Boon et al 2019;Liuzzi et al 2020). In parallel, modelling studies on sorption enhanced reactions have sought to conceptually understand sorption enhancement and focus on process design (van Kampen et al 2020b;Iliuta et al 2011;Parra et al 2017Parra et al ,2018Bayat et al 2016;Guffanti et al 2021).…”

Section: Introductionmentioning

confidence: 99%

“…Indeed, under the required operating conditions these materials show sufficient hydrothermal stability, possess adequate adsorption capacity, and adequate regeneration properties compared to other materials, such as typical chemisorbents Kohl and Nielsen 1997). Where zeolites 13X, 5A and to lesser extent 4A are also used for CO 2 adsorption applications and potentially adsorb reaction products (Borgschulte et al 2013;Walspurger et al 2014;Terreni et al 2019;Dirar and Loughlin 2013;Son et al 2018;Sircar and Myers 2003;Lad and Makkawi 2014), zeolite 3A is highly selective for water due to size exclusion by its limited pore size (Fig. 1).…”

Section: Introductionmentioning

confidence: 99%

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Steam adsorption on molecular sieve 3A for sorption enhanced reaction processes

Kampen

Boon

Annaland³

2020

Adsorption

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Steam adsorption enhanced reaction processes are a promising process intensification for many types of reactions, where water is formed as a byproduct. To assess the potential of these processes, adequate models are required that accurately describe water adsorption, particularly under the desired elevated temperatures and pressures. In this work, an adsorption isotherm is presented for H2O adsorption at 200–350 °C and 0.05–4.5 bar partial pressure on molecular sieve (LTA) 3A. The isotherm has been developed on the basis of experimental data obtained from a thermogravimetric analysis and integrated breakthrough curves. The experimental data at lower steam partial pressures can be described with a Generalized Statistical Thermodynamic Adsorption (GSTA) isotherm, whereas at higher steam partial pressures the experimental data can be adequately captured by capillary condensation. Based on the characteristics of the adsorbent particles, a linear driving force relation has been derived for the adsorption mass transfer rate and the apparent micropore diffusivity is determined. The isotherm and mass transport model presented here prove to be adequate for modelling and improved evaluation of steam adsorption enhanced reaction processes.

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Reactive Water Sorbents for the Sorption-Enhanced Reverse Water–Gas Shift

Pieterse¹,

Elzinga²,

Booneveld³

et al. 2021

Catal Lett

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Experimental validation of pressure swing regeneration for faster cycling in sorption enhanced dimethyl ether synthesis

Abstract: Sorption enhanced dimethyl ether synthesis (SEDMES) is a novel DME production route from CO2-rich feedstocks. In situ water removal by adsorption results in high single-pass conversions, thereby circumventing the disadvantages...

Cited by 18 publications

References 12 publications

The Techno-Economic Benefit of Sorption Enhancement: Evaluation of Sorption-Enhanced Dimethyl Ether Synthesis for CO2 Utilization

The Techno-Economic Benefit of Sorption Enhancement: Evaluation of Sorption-Enhanced Dimethyl Ether Synthesis for CO2 Utilization

Steam adsorption on molecular sieve 3A for sorption enhanced reaction processes

Reactive Water Sorbents for the Sorption-Enhanced Reverse Water–Gas Shift

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