can we go negative? Cristina Antonini and Marco Mazzotti 2020-06-22 - - PowerPoint PPT Presentation

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can we go negative? Cristina Antonini and Marco Mazzotti 2020-06-22 - - PowerPoint PPT Presentation

Mar 10, 2023 259 likes •624 views

Biomass to hydrogen with CCS: can we go negative? Cristina Antonini and Marco Mazzotti 2020-06-22 1 ELEGANCY - Overview H 2 from electrolysis NG/Biomass Syngas H 2 CO 2 Reforming WGS PSA capture H 2 storage CO 2 NG/Biomass H 2 Syngas H

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SLIDE 1

Biomass to hydrogen with CCS: can we go negative?

Cristina Antonini and Marco Mazzotti 2020-06-22

1

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SLIDE 2

Coal/Biomass

CO2 dehydration compression CO2 CO2 H2 transport H2 storage H2 from electrolysis H2 utilization CO2 transport, injection and storage CO2 WP2 Task 1.2 Task 1.3 Task 1.4 Task 1.1 ETHZ, UU ECN ETHZ, UU RUB

WGS NG/Biomass H2 Reforming

Syngas

VPSA WGS CO2 capture PSA H2 Reforming

Basic Oxygen Furnace Gas

WGS SEWGS H2

Industrial process (Steel plant)

2

ELEGANCY - Overview

Syngas

NG/Biomass

NG: Natural Gas WGS: Water-gas shift section (V)PSA: (Vacuum) Pressure swing adsorption SEWGS: Sorption enhanced WGS

CO2

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SLIDE 3

Coal/Biomass

CO2 dehydration compression CO2 CO2 H2 transport H2 storage H2 from electrolysis H2 utilization CO2 transport, injection and storage CO2 WP2

WGS NG/Biomass H2 Reforming

Syngas

VPSA WGS CO2 capture PSA H2 Reforming

Basic Oxygen Furnace Gas

WGS SEWGS H2

Industrial process (Steel plant)

ELEGANCY - Low-C H2 production

Syngas

NG/Biomass

CO2

3

NG: Natural Gas WGS: Water-gas shift section (V)PSA: (Vacuum) Pressure swing adsorption SEWGS: Sorption enhanced WGS

Goals: 1) Study low-C hydrogen production with CO2 capture and storage

  • starting from different feedstocks
  • using different production technologies
  • comparing benchmark with novel CO2/H2 separation processes

2) Investigate the possibility to deliver negative emissions

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SLIDE 4

VPSA 4

Low-C H2 production

WGS CO2 capture PSA H2 Reforming

Syngas

NG

Feedstock Feedstock conversion Technology – Natural gas (NG) Reforming

NG: Natural Gas WGS: Water-gas shift section (V)PSA: (Vacuum) Pressure swing adsorption

PSA tail gas (CH4, CO, H2) CO2

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SLIDE 5

5

Feedstock Feedstock conversion Technology – Natural gas (NG) Reforming

  • Steam methane reforming (SMR)

NG: Natural Gas WGS: Water-gas shift section (V)PSA: (Vacuum) Pressure swing adsorption SMR: Steam methane reforming

VPSA WGS CO2 capture PSA SMR

H2O Flue gas Furnace

H2

Syngas PSA tail gas (CH4, CO, H2)

NG

CO2

Low-C H2 production

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SLIDE 6

VPSA WGS CO2 capture PSA 6 SMR

H2O Flue gas PSA tail gas (CH4, CO, H2) Furnace

H2

Syngas

CO2

NG

Feedstock Feedstock conversion Technology – Natural gas (NG) Reforming

  • Steam methane reforming (SMR)

NG: Natural Gas WGS: Water-gas shift section (V)PSA: (Vacuum) Pressure swing adsorption SMR: Steam methane reforming

CO2 (60-70 %)

Low-C H2 production

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SLIDE 7

VPSA

CO2

WGS CO2 capture PSA 7 ATR H2

Syngas

Fired heater

Flue gas

ASU

O2 Air H2O

NG

Feedstock Feedstock conversion Technology – Natural gas (NG) Reforming

  • Steam methane reforming (SMR)
  • Autothermal reforming (ATR)

NG: Natural Gas WGS: Water-gas shift section (V)PSA: (Vacuum) Pressure swing adsorption SMR: Steam methane reforming ATR: Autothermal reforming ASU: air separation unit

PSA tail gas (CH4, CO, H2)

Low-C H2 production

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SLIDE 8

VPSA WGS CO2 capture PSA 8 ATR

H2O

H2

Syngas

ASU

O2 Air Flue gas

NG

CO2

Feedstock Feedstock conversion Technology – Natural gas (NG) Reforming

  • Steam methane reforming (SMR)
  • Autothermal reforming (ATR)

NG: Natural Gas WGS: Water-gas shift section (V)PSA: (Vacuum) Pressure swing adsorption SMR: Steam methane reforming ATR: Autothermal reforming ASU: air separation unit

Fired heater

PSA tail gas (CH4, CO, H2) CO2 (93-98 %)

Low-C H2 production

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SLIDE 9

VPSA

CO2

9 WGS CO2 capture PSA H2 Reforming

Syngas

NG

Feedstock Feedstock conversion Technology – Natural gas (NG) Reforming

  • Steam methane reforming (SMR)
  • Autothermal reforming (ATR)

NG: Natural Gas WGS: Water-gas shift section (V)PSA: (Vacuum) Pressure swing adsorption SMR: Steam methane reforming ATR: Autothermal reforming ASU: air separation unit

PSA tail gas (CH4, CO, H2)

Low-C H2 production

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SLIDE 10

VPSA

CO2

WGS CO2 capture PSA H2 10 Reforming

Biogas Upgrading Anaerobic Digestion Biogas

Wet biomass

Syngas

NG/Biomethane

Feedstock Feedstock conversion Technology – Natural gas (NG) – Biomethane from WB Reforming

  • Steam methane reforming (SMR)
  • Autothermal reforming (ATR)

NG: Natural Gas WGS: Water-gas shift section (V)PSA: (Vacuum) Pressure swing adsorption SMR: Steam methane reforming ATR: Autothermal reforming ASU: air separation unit WB: Wet biomass

PSA tail gas (CH4, CO, H2)

Low-C H2 production

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SLIDE 11

VPSA

CO2

WGS CO2 capture PSA H2 11 Reforming

Biogas Upgrading Anaerobic Digestion Biogas

Wet biomass

Syngas

NG/Biomethane

Feedstock Feedstock conversion Technology – Natural gas (NG) – Biomethane from WB Reforming

  • Steam methane reforming (SMR)
  • Autothermal reforming (ATR)

NG: Natural Gas WGS: Water-gas shift section (V)PSA: (Vacuum) Pressure swing adsorption SMR: Steam methane reforming ATR: Autothermal reforming ASU: air separation unit WB: Wet biomass

PSA tail gas (CH4, CO, H2)

Low-C H2 production

Negative emissions

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SLIDE 12

CO2

WGS CO2 capture PSA H2 12 Reforming Dry biomass Wood chips

Biogas Upgrading Anaerobic Digestion Biogas

Wet biomass

Syngas

NG/Biomethane

Feedstock Feedstock conversion Technology – Natural gas (NG) – Biomethane from WB Reforming

  • Steam methane reforming (SMR)
  • Autothermal reforming (ATR)

– Dry biomass (wood) Gasification

NG: Natural Gas WGS: Water-gas shift section (V)PSA: (Vacuum) Pressure swing adsorption SMR: Steam methane reforming ATR: Autothermal reforming ASU: air separation unit WB: Wet biomass

H2O Forestry wood logging Chipping O2

ASU

Air PSA tail gas (CH4, CO, H2)

Low-C H2 production

Gasification Gasification

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SLIDE 13

CO2

WGS CO2 capture PSA H2 13 Reforming

Biogas Upgrading Anaerobic Digestion Biogas

Wet biomass

Syngas

NG/Biomethane

Feedstock Feedstock conversion Technology – Natural gas (NG) – Biomethane from WB Reforming

  • Steam methane reforming (SMR)
  • Autothermal reforming (ATR)

– Dry biomass (wood) Gasification

  • Steam-blown dual fluidized bed gasifier

NG: Natural Gas WGS: Water-gas shift section (V)PSA: (Vacuum) Pressure swing adsorption SMR: Steam methane reforming ATR: Autothermal reforming ASU: air separation unit WB: Wet biomass DFB: Dual fluidized bed

H2O Forestry wood logging Chipping O2

ASU

Air PSA tail gas (CH4, CO, H2)

Low-C H2 production

Gasification DFB gasifier

Dry biomass Wood chips

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SLIDE 14

Heat

CO2

WGS CO2 capture PSA H2 14 Reforming

Biogas Upgrading Anaerobic Digestion Biogas

Wet biomass

Syngas

NG/Biomethane

Feedstock Feedstock conversion Technology – Natural gas (NG) – Biomethane from WB Reforming

  • Steam methane reforming (SMR)
  • Autothermal reforming (ATR)

– Dry biomass (wood) Gasification

  • Steam-blown dual fluidized bed gasifier

NG: Natural Gas WGS: Water-gas shift section (V)PSA: (Vacuum) Pressure swing adsorption SMR: Steam methane reforming ATR: Autothermal reforming ASU: air separation unit WB: Wet biomass DFB: Dual fluidized bed

H2O Forestry wood logging Chipping O2

ASU

Air PSA tail gas (CH4, CO, H2)

Low-C H2 production

Flue gas

Char

Gasification Air

Dry biomass Wood chips

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SLIDE 15

Heat

WGS CO2 capture PSA H2 15 Reforming

Biogas Upgrading Anaerobic Digestion Biogas

Wet biomass

Syngas

NG/Biomethane

Feedstock Feedstock conversion Technology – Natural gas (NG) – Biomethane from WB Reforming

  • Steam methane reforming (SMR)
  • Autothermal reforming (ATR)

– Dry biomass (wood) Gasification

  • Steam-blown dual fluidized bed gasifier

NG: Natural Gas WGS: Water-gas shift section (V)PSA: (Vacuum) Pressure swing adsorption SMR: Steam methane reforming ATR: Autothermal reforming ASU: air separation unit WB: Wet biomass DFB: Dual fluidized bed

H2O Forestry wood logging Chipping O2

ASU

Air PSA tail gas (CH4, CO, H2)

Low-C H2 production

Flue gas

Char

Gasification Air

CO2

CO2 (60 %)

Dry biomass Wood chips

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SLIDE 16

Heat

WGS CO2 capture PSA H2 16 Reforming

Biogas Upgrading Anaerobic Digestion Biogas

Wet biomass

Syngas

NG/Biomethane

Feedstock Feedstock conversion Technology – Natural gas (NG) – Biomethane from WB Reforming

  • Steam methane reforming (SMR)
  • Autothermal reforming (ATR)

– Dry biomass (wood) Gasification

  • Steam-blown dual fluidized bed gasifier

NG: Natural Gas WGS: Water-gas shift section (V)PSA: (Vacuum) Pressure swing adsorption SMR: Steam methane reforming ATR: Autothermal reforming ASU: air separation unit WB: Wet biomass DFB: Dual fluidized bed

H2O Forestry wood logging Chipping O2

ASU

Air PSA tail gas (CH4, CO, H2)

Low-C H2 production

Flue gas

Char

Gasification Air

CO2

CO2 (60 %)

Negative emissions

Dry biomass Wood chips

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SLIDE 17

WGS PSA H2 17 Reforming

Biogas Upgrading Anaerobic Digestion Biogas

Wet biomass

Syngas

NG/Biomethane

Feedstock Feedstock conversion Technology – Natural gas (NG) – Biomethane from WB Reforming

  • Steam methane reforming (SMR)
  • Autothermal reforming (ATR)

– Dry biomass (wood) Gasification

  • Steam-blown dual fluidized bed gasifier
  • Oxy-fired entrained flow gasifier

NG: Natural Gas WGS: Water-gas shift section (V)PSA: (Vacuum) Pressure swing adsorption SMR: Steam methane reforming ATR: Autothermal reforming ASU: air separation unit WB: Wet biomass DFB: Dual fluidized bed EF: Entrained flow

H2O Forestry wood logging Chipping O2

ASU

Air PSA tail gas (CO, H2) CO2

Low-C H2 production

DFB gasifier EF gasifier

CO2 capture Dry biomass Wood chips

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SLIDE 18

WGS PSA H2 18 Reforming

Biogas Upgrading Anaerobic Digestion Biogas

Wet biomass

Syngas

NG/Biomethane

Feedstock Feedstock conversion Technology – Natural gas (NG) – Biomethane from WB Reforming

  • Steam methane reforming (SMR)
  • Autothermal reforming (ATR)

– Dry biomass (wood) Gasification

  • Steam-blown dual fluidized bed gasifier
  • Oxy-fired entrained flow gasifier

NG: Natural Gas WGS: Water-gas shift section (V)PSA: (Vacuum) Pressure swing adsorption SMR: Steam methane reforming ATR: Autothermal reforming ASU: air separation unit WB: Wet biomass DFB: Dual fluidized bed EF: Entrained flow

H2O Forestry wood logging Chipping O2

ASU

Air PSA tail gas (CO, H2)

Low-C H2 production

DFB gasifier EF gasifier

CO2 capture

CO2 (98 %)

Dry biomass Wood chips

CO2

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SLIDE 19

WGS PSA H2 19 Reforming

Biogas Upgrading Anaerobic Digestion Biogas

Wet biomass

Syngas

NG/Biomethane

Feedstock Feedstock conversion Technology – Natural gas (NG) – Biomethane from WB Reforming

  • Steam methane reforming (SMR)
  • Autothermal reforming (ATR)

– Dry biomass (wood) Gasification

  • Steam-blown dual fluidized bed gasifier
  • Oxy-fired entrained flow gasifier

NG: Natural Gas WGS: Water-gas shift section (V)PSA: (Vacuum) Pressure swing adsorption SMR: Steam methane reforming ATR: Autothermal reforming ASU: air separation unit WB: Wet biomass DFB: Dual fluidized bed EF: Entrained flow

H2O Forestry wood logging Chipping O2

ASU

Air PSA tail gas (CO, H2)

Low-C H2 production

DFB gasifier EF gasifier

CO2 capture

CO2 (98 %)

Dry biomass Wood chips

Negative emissions

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SLIDE 20

WGS CO2 capture PSA H2 20 Reforming

Biogas Upgrading Anaerobic Digestion Biogas

Wet biomass

Syngas

NG/Biomethane

Feedstock Feedstock conversion Technology – Natural gas (NG) – Biomethane from WB Reforming

  • Steam methane reforming (SMR)
  • Autothermal reforming (ATR)

– Dry biomass (wood) Gasification

  • Steam-blown dual fluidized bed gasifier
  • Oxy-fired entrained flow gasifier

NG: Natural Gas WGS: Water-gas shift section PSA: Pressure swing adsorption SMR: Steam methane reforming ATR: Autothermal reforming ASU: air separation unit WB: Wet biomass DFB: Dual fluidized bed EF: Entrained flow

Dry biomass Wood chips

H2O Forestry wood logging Chipping O2

ASU

Air PSA tail gas (CH4, CO, H2) CO2

Low-C H2 production

DFB gasifier EF gasifier

➢ These production chains are modelled in Aspen Plus

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SLIDE 21

WGS CO2 capture PSA H2 21 Reforming

Syngas

NG/Biomethane

CO2 capture - benchmark technology

Benchmark: amine absorption Standard solvent: Methyl diethanolamine (MDEA)

Lean stream Rich stream Semi-lean stream Gas recycle Shifted syngas Raw H2 CO2 to dehydration and compression Absorber Stripper CO2 HP flash LP flash

NG: Natural Gas WGS: Water-gas shift section (V)PSA: (Vacuum) Pressure swing adsorption LP: Low pressure HP: High pressure

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SLIDE 22

WGS CO2 capture PSA H2 22 Reforming

Syngas

NG/Biomethane

CO2 capture - benchmark technology

Benchmark: amine absorption Standard solvent: Methyl diethanolamine (MDEA) ➢ Detailed model in Aspen Plus

NG: Natural Gas WGS: Water-gas shift section (V)PSA: (Vacuum) Pressure swing adsorption LP: Low pressure HP: High pressure

Shifted syngas Raw H2 CO2

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SLIDE 23

23

CO2 capture technology – optimization

➢ Detailed model in Aspen Plus 1) Sensitivity analysis on the process variables 2) Select the decision variables, continuous (𝒚) and discrete (𝒛) 3) Two objective functions to optimize – CO2 capture rate ψ – Total specific equivalent work ω 4) The optimization problem is solved using a genetic algorithm → Pareto Optimum

Process model in Aspen Plus CO2 capture rate: ψ Total specific equivalent work: ω [MJ/kgCO2]

= 𝑛CO2

captured

𝑛CO2

in

= 𝑋

tot

𝑛CO2

captured

min

𝑦,𝑧

𝜕, 1 𝜔 subject to 𝒚min ≤ 𝒚 ≤ 𝒚max 𝒛 ∈ 𝒛𝟐, 𝒛𝟑, … 𝒛𝑶 Multi-objective optimization

Goal: optimize the CO2 capture plant for different H2 production chains

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SLIDE 24

VPSA WGS PSA H2 24 Reforming

Syngas

NG/Biomethane

CO2 capture - novel technology

Novel CO2/H2 separation technology: Vacuum pressure Swing Adsorption

NG: Natural Gas WGS: Water-gas shift section (V)PSA: (Vacuum) Pressure swing adsorption

CO2 capture

PAds PPE1 PHP PBD-vac PAds PPE1

VP

PAds Feed (Shifted Syngas) Hydrogen PHP PPE1 PPE2 PPE2 PPE3 PPE3 PHP PPE3 PBD-vac PPE2 PPE3 PPE1 PPE2 CO2 Tail Gas I Tail Gas II PBD-vac

VP

PBD-vac

VP

Tail Gas III Press PE-BD1 PE-BD2 PE-BD3 BD1 HP BD-vac LP1 LP2 PE-Pr3 PE-Pr2 PE-Pr1 Ads

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SLIDE 25

Natural gas Biomethane Wood chips

VPSA PSA H2 (200 bar) 25 Reforming

Syngas

NG/Biomethane

Low-C H2 production - performance

WGS

SMR: Steam methane reforming ATR: Autothermal reforming CCS: benchmark CO2 capture with MDEA DFB: Dual fluidized bed EF: Entrained flow

Wood chips

H2O O2

ASU

Air PSA tail gas (CH4, CO, H2) CO2

CO2 capture

DFB gasifier EF gasifier

η =

𝐹H2[MW] 𝐹feedstock [MW]

Antonini, C., Treyer, K., Streb, A., van der Spek, M., Bauer, C., & Mazzotti, M. (2020). Hydrogen production from natural gas and biomethane with carbon capture and storage–A techno-environmental

  • analysis. Sustainable Energy & Fuels.

1) The performance of the benchmark and of the novel VPSA process is similar → CCS: Benchmark CO2 capture with MDEA 2) For all technologies presented we developed a detailed model simulation in Aspen Plus 3) The performance of the SMR and ATR processes does not change significantly while using biomethane instead of natural gas 4) When the feedstock is biomass the captured CO2 can deliver negative emissions

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SLIDE 26

Natural gas Biomethane Wood chips

VPSA PSA 26 Reforming

Syngas

NG/Biomethane

Low-C H2 production - performance

WGS

SMR: Steam methane reforming ATR: Autothermal reforming CCS: benchmark CO2 capture with MDEA DFB: Dual fluidized bed EF: Entrained flow

Wood chips

H2O O2

ASU

Air PSA tail gas (CH4, CO, H2) CO2

CO2 capture

DFB gasifier EF gasifier

η =

𝐹H2[MW] 𝐹feedstock [MW]

Antonini, C., Treyer, K., Streb, A., van der Spek, M., Bauer, C., & Mazzotti, M. (2020). Hydrogen production from natural gas and biomethane with carbon capture and storage–A techno-environmental

  • analysis. Sustainable Energy & Fuels.

H2 (200 bar)

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SLIDE 27

27 Wood chips

H2O O2

ASU

Air PSA tail gas (CH4, CO, H2)

Low-C H2 production - performance

DFB gasifier EF gasifier

η =

𝐹H2[MW] 𝐹feedstock [MW]

VPSA WGS PSA H2 SMR

Syngas

NG/Biomethane CO2 capture

CO2

Re-do this plot

SMR: Steam methane reforming ATR: Autothermal reforming CCS: benchmark CO2 capture with MDEA DFB: Dual fluidized bed EF: Entrained flow Antonini, C., Treyer, K., Streb, A., van der Spek, M., Bauer, C., & Mazzotti, M. (2020). Hydrogen production from natural gas and biomethane with carbon capture and storage–A techno-environmental

  • analysis. Sustainable Energy & Fuels.

Natural gas Biomethane Wood chips

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SLIDE 28

VPSA PSA H2 28 ATR

Syngas

NG/Biomethane CO2 capture

PSA tail gas (CH4, CO, H2) CO2

Low-C H2 production - performance

Wood chips

H2O O2

ASU

Air DFB gasifier EF gasifier

η =

𝐹H2[MW] 𝐹feedstock [MW]

WGS

SMR: Steam methane reforming ATR: Autothermal reforming CCS: benchmark CO2 capture with MDEA DFB: Dual fluidized bed EF: Entrained flow Antonini, C., Treyer, K., Streb, A., van der Spek, M., Bauer, C., & Mazzotti, M. (2020). Hydrogen production from natural gas and biomethane with carbon capture and storage–A techno-environmental

  • analysis. Sustainable Energy & Fuels.

Natural gas Biomethane Wood chips Natural gas Biomethane Wood chips

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SLIDE 29

Wood chips

H2O O2

ASU

Air

29 PSA H2 Reforming

Syngas

NG/Biomethane WGS CO2 capture

DFB gasifier EF gasifier PSA tail gas (CH4, CO, H2) CO2

Low-C H2 production - performance

η =

𝐹H2[MW] 𝐹feedstock [MW]

Natural gas Biomethane Wood chips

SMR: Steam methane reforming ATR: Autothermal reforming CCS: benchmark CO2 capture with MDEA DFB: Dual fluidized bed EF: Entrained flow Antonini, C., Treyer, K., Streb, A., van der Spek, M., Bauer, C., & Mazzotti, M. (2020). Hydrogen production from natural gas and biomethane with carbon capture and storage–A techno-environmental

  • analysis. Sustainable Energy & Fuels.
slide-30
SLIDE 30

Natural gas Biomethane Wood chips

30 PSA H2 Reforming

Syngas

NG/Biomethane CO2 capture Wood chips

H2O O2

ASU

Air DFB gasifier EF gasifier PSA tail gas (CH4, CO, H2) CO2

Low-C H2 production - performance

η =

𝐹H2[MW] 𝐹feedstock [MW]

WGS

SMR: Steam methane reforming ATR: Autothermal reforming CCS: benchmark CO2 capture with MDEA DFB: Dual fluidized bed EF: Entrained flow Antonini, C., Treyer, K., Streb, A., van der Spek, M., Bauer, C., & Mazzotti, M. (2020). Hydrogen production from natural gas and biomethane with carbon capture and storage–A techno-environmental

  • analysis. Sustainable Energy & Fuels.
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SLIDE 31

31 PSA H2 Reforming

Syngas

NG/Biomethane CO2 capture Wood chips

H2O O2

ASU

Air DFB gasifier EF gasifier CO2

Low-C H2 production - performance

η =

𝐹H2[MW] 𝐹feedstock [MW]

WGS

SMR: Steam methane reforming ATR: Autothermal reforming CCS: benchmark CO2 capture with MDEA DFB: Dual fluidized bed EF: Entrained flow Antonini, C., Treyer, K., Streb, A., van der Spek, M., Bauer, C., & Mazzotti, M. (2020). Hydrogen production from natural gas and biomethane with carbon capture and storage–A techno-environmental

  • analysis. Sustainable Energy & Fuels.

PSA tail gas (CH4, CO, H2) Biomethane Wood chips

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SLIDE 32

32 PSA H2 Reforming

Syngas

NG/Biomethane CO2 capture Wood chips

H2O O2

ASU

Air DFB gasifier EF gasifier CO2

Low-C H2 production - performance

η =

𝐹H2[MW] 𝐹feedstock [MW]

WGS

SMR: Steam methane reforming ATR: Autothermal reforming CCS: benchmark CO2 capture with MDEA DFB: Dual fluidized bed EF: Entrained flow Antonini, C., Treyer, K., Streb, A., van der Spek, M., Bauer, C., & Mazzotti, M. (2020). Hydrogen production from natural gas and biomethane with carbon capture and storage–A techno-environmental

  • analysis. Sustainable Energy & Fuels.

PSA tail gas (CH4, CO, H2) CO2 emitted to the atmosphere CO2 captured and stored (negative emissions)

slide-33
SLIDE 33

33

Conclusions

  • Producing low carbon hydrogen is possible

➢ Combining production from natural gas with CCS ➢ Using biomass either wet or dry ➢ Negative emissions can be obtained when combining hydrogen production from biomass with CCS

  • The availability of biomass will be a critical factor and will vary from

region to region

  • The overall environmental performance that depends on the type of

feedstock and production chain selected has to be evaluated via LCA

➢Karin will present the overall environmental performance of low-C hydrogen production

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SLIDE 34

Acknowledgement

ACT ELEGANCY, Project No 271498, has received funding from DETEC (CH), BMWi (DE), RVO (NL), Gassnova (NO), BEIS (UK), Gassco, Equinor and Total, and is cofunded by the European Commission under the Horizon 2020 programme, ACT Grant Agreement No 691712. This project is supported by the pilot and demonstration programme of the Swiss Federal Office of Energy (SFOE).

34

slide-35
SLIDE 35

35 PSA H2 Reforming

Syngas

NG/Biomethane CO2 capture Wood chips

H2O O2

ASU

Air DFB gasifier EF gasifier PSA tail gas (CH4, CO, H2) CO2

Low-C H2 production - performance

η =

𝐹H2[MW] 𝐹feedstock [MW]

WGS

SMR: Steam methane reforming ATR: Autothermal reforming CCS: benchmark CO2 capture with MDEA DFB: Dual fluidized bed EF: Entrained flow Antonini, C., Treyer, K., Streb, A., van der Spek, M., Bauer, C., & Mazzotti, M. (2020). Hydrogen production from natural gas and biomethane with carbon capture and storage–A techno-environmental

  • analysis. Sustainable Energy & Fuels.

Natural gas Biomethane Wood chips