Techno-economic assessment of an integrated high pressure chemical-looping process with packed-bed reactors in large scale hydrogen and methanol production

Vincenzo Spallina (Corresponding author), Goharsharieh Motamedi, Fausto Gallucci, Martin van Sint Annaland

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

Uittreksel

A full-scale techno-economic analysis of a novel chemical looping based process using dynamically operated packed bed reactors has been carried out for the large-scale production of hydrogen (up to 30,000 Nm3/h) and methanol (up to 10,000 tons per day) with inherently integrated CO2 capture. The complete process is carried out in three main reactors, in which the reactions occurring are the dry and steam reforming of natural gas with H2O and CO2, the oxidation of the oxygen carrier (OC) with air and the reduction with a low-grade fuel such as plant off-gases. The thermal balance of the process is achieved by combining the endothermic reforming reaction with the exothermic chemical looping combustion. The chemical looping based process is fully integrated with the separation and synthesis units as well as the power and heat utilities of the two large scale production plants. The two plants are compared with state-of-the-art technologies, including the benchmarks for hydrogen and methanol production from natural gas through steam reforming and auto-thermal reforming. Compared to a conventional H2 production plant (without CO2 capture), the reforming efficiency is 3% higher, while the required primary energy consumption to separate CO2 is 0.47 MJLHV/kgCO2 which is significantly lower than that of an amine-based plant (>1.35 MJLHV/kgCO2) and the cost of hydrogen production with the proposed process is 2.19 $/kg with a CO2 avoidance cost of 58.7 $/tonCO2 (compared to > 70.6 $/tonCO2 for solvent based plant). In case of methanol production, the carbon conversion is comparable with the best available processes even though CO2 purification and separation (98% capture with >96% purity) units are included due to the improved energy recovery. By using chemical looping the cost of methanol production decreases overall by 17% compared to the benchmark plant due to the lower investment cost and higher electricity generation resulting overall in a negative CO2 avoidance cost (-303 $/tonCO2).

TaalEngels
Pagina's71-84
Aantal pagina's14
TijdschriftInternational Journal of Greenhouse Gas Control
Volume88
DOI's
StatusGepubliceerd - 1 sep 2019

Vingerafdruk

Packed beds
chemical process
methanol
Methanol
hydrogen
Hydrogen
Economics
Reforming reactions
economics
cost
Steam reforming
Costs
natural gas
Natural gas
electricity generation
economic analysis
Economic analysis
purification
Hydrogen production
combustion

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    title = "Techno-economic assessment of an integrated high pressure chemical-looping process with packed-bed reactors in large scale hydrogen and methanol production",
    abstract = "A full-scale techno-economic analysis of a novel chemical looping based process using dynamically operated packed bed reactors has been carried out for the large-scale production of hydrogen (up to 30,000 Nm3/h) and methanol (up to 10,000 tons per day) with inherently integrated CO2 capture. The complete process is carried out in three main reactors, in which the reactions occurring are the dry and steam reforming of natural gas with H2O and CO2, the oxidation of the oxygen carrier (OC) with air and the reduction with a low-grade fuel such as plant off-gases. The thermal balance of the process is achieved by combining the endothermic reforming reaction with the exothermic chemical looping combustion. The chemical looping based process is fully integrated with the separation and synthesis units as well as the power and heat utilities of the two large scale production plants. The two plants are compared with state-of-the-art technologies, including the benchmarks for hydrogen and methanol production from natural gas through steam reforming and auto-thermal reforming. Compared to a conventional H2 production plant (without CO2 capture), the reforming efficiency is 3{\%} higher, while the required primary energy consumption to separate CO2 is 0.47 MJLHV/kgCO2 which is significantly lower than that of an amine-based plant (>1.35 MJLHV/kgCO2) and the cost of hydrogen production with the proposed process is 2.19 $/kg with a CO2 avoidance cost of 58.7 $/tonCO2 (compared to > 70.6 $/tonCO2 for solvent based plant). In case of methanol production, the carbon conversion is comparable with the best available processes even though CO2 purification and separation (98{\%} capture with >96{\%} purity) units are included due to the improved energy recovery. By using chemical looping the cost of methanol production decreases overall by 17{\%} compared to the benchmark plant due to the lower investment cost and higher electricity generation resulting overall in a negative CO2 avoidance cost (-303 $/tonCO2).",
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    Techno-economic assessment of an integrated high pressure chemical-looping process with packed-bed reactors in large scale hydrogen and methanol production. / Spallina, Vincenzo (Corresponding author); Motamedi, Goharsharieh; Gallucci, Fausto; van Sint Annaland, Martin.

    In: International Journal of Greenhouse Gas Control, Vol. 88, 01.09.2019, blz. 71-84.

    Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

    TY - JOUR

    T1 - Techno-economic assessment of an integrated high pressure chemical-looping process with packed-bed reactors in large scale hydrogen and methanol production

    AU - Spallina,Vincenzo

    AU - Motamedi,Goharsharieh

    AU - Gallucci,Fausto

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    N2 - A full-scale techno-economic analysis of a novel chemical looping based process using dynamically operated packed bed reactors has been carried out for the large-scale production of hydrogen (up to 30,000 Nm3/h) and methanol (up to 10,000 tons per day) with inherently integrated CO2 capture. The complete process is carried out in three main reactors, in which the reactions occurring are the dry and steam reforming of natural gas with H2O and CO2, the oxidation of the oxygen carrier (OC) with air and the reduction with a low-grade fuel such as plant off-gases. The thermal balance of the process is achieved by combining the endothermic reforming reaction with the exothermic chemical looping combustion. The chemical looping based process is fully integrated with the separation and synthesis units as well as the power and heat utilities of the two large scale production plants. The two plants are compared with state-of-the-art technologies, including the benchmarks for hydrogen and methanol production from natural gas through steam reforming and auto-thermal reforming. Compared to a conventional H2 production plant (without CO2 capture), the reforming efficiency is 3% higher, while the required primary energy consumption to separate CO2 is 0.47 MJLHV/kgCO2 which is significantly lower than that of an amine-based plant (>1.35 MJLHV/kgCO2) and the cost of hydrogen production with the proposed process is 2.19 $/kg with a CO2 avoidance cost of 58.7 $/tonCO2 (compared to > 70.6 $/tonCO2 for solvent based plant). In case of methanol production, the carbon conversion is comparable with the best available processes even though CO2 purification and separation (98% capture with >96% purity) units are included due to the improved energy recovery. By using chemical looping the cost of methanol production decreases overall by 17% compared to the benchmark plant due to the lower investment cost and higher electricity generation resulting overall in a negative CO2 avoidance cost (-303 $/tonCO2).

    AB - A full-scale techno-economic analysis of a novel chemical looping based process using dynamically operated packed bed reactors has been carried out for the large-scale production of hydrogen (up to 30,000 Nm3/h) and methanol (up to 10,000 tons per day) with inherently integrated CO2 capture. The complete process is carried out in three main reactors, in which the reactions occurring are the dry and steam reforming of natural gas with H2O and CO2, the oxidation of the oxygen carrier (OC) with air and the reduction with a low-grade fuel such as plant off-gases. The thermal balance of the process is achieved by combining the endothermic reforming reaction with the exothermic chemical looping combustion. The chemical looping based process is fully integrated with the separation and synthesis units as well as the power and heat utilities of the two large scale production plants. The two plants are compared with state-of-the-art technologies, including the benchmarks for hydrogen and methanol production from natural gas through steam reforming and auto-thermal reforming. Compared to a conventional H2 production plant (without CO2 capture), the reforming efficiency is 3% higher, while the required primary energy consumption to separate CO2 is 0.47 MJLHV/kgCO2 which is significantly lower than that of an amine-based plant (>1.35 MJLHV/kgCO2) and the cost of hydrogen production with the proposed process is 2.19 $/kg with a CO2 avoidance cost of 58.7 $/tonCO2 (compared to > 70.6 $/tonCO2 for solvent based plant). In case of methanol production, the carbon conversion is comparable with the best available processes even though CO2 purification and separation (98% capture with >96% purity) units are included due to the improved energy recovery. By using chemical looping the cost of methanol production decreases overall by 17% compared to the benchmark plant due to the lower investment cost and higher electricity generation resulting overall in a negative CO2 avoidance cost (-303 $/tonCO2).

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