Feasibility of Carbon Capture in Kraft Pulp Mills: Master's thesis

Sampo Kouri

Research output: ThesisMaster's thesisTheses

Abstract

The purpose of this thesis was to assess the feasibility of carbon capture in Finnish Kraft pulp mills. The feasibilities of thirteen different technology options were evaluated based on their technical maturity, capture potential and estimated break-even price for emission allowance including biogenic emissions. Also the role of pulp and paper in-dustry in climate change mitigation was discussed. The study was conducted by comparing oxy-fuel combustion cases modelled with Balas software and a fuel switch option calculated based on mass and energy balances with results from previous studies. The technical maturity was evaluated based on previous studies and existing commercial activity. The break-even prices from literature were recalculated under the same assumptions for investment costs, commodity costs and supporting policies. Two price estimates were calculated: one including supporting pol-icies and possibly available revenue and another excluding them. The capture potential was estimated using a reference mill scaled to the pulp production rate of 1200 ADt/d. Part of the technologies require large structural changes and were considered available only if the mill is rebuilt. Thus the capture potential in the reference mill was scaled up based on either the capture potential in mills to be rebuilt by 2030 or the capture poten-tial in all Finnish pulp mills. The relevant capture potential was calculated based on the production capacities and the estimated age distribution of the chemical recovery sec-tions in Finnish pulp mills. The results from this thesis were subjected to qualitative and numerical sensitivity analyses. Carbon capture in pulp mills seems feasible only if other revenues than CCS supporting policies are available. These revenues could include by-products like biofuels, higher energy efficiency or increased pulp production. The cases of lignin separation and black liquor gasification to transportation fuels were most cost efficient, but the capture poten-tials were limited to 1.45 Mt(CO2)/a and 0.82 Mt(CO2)/a, respectively. Small scale car-bon capture for utilization could be achieved with pre-calcination, as the break-even price was only around 4.5-7.3 /t(CO2). Large scale implementation of carbon capture in the Finnish pulp mills with monoethanolamine (MEA) absorption had a capture po-tential of up to 12 Mt(CO2)/a, but the break-even price was around 70-80 /t(CO2) ex-cluding transportation and storage costs. Moreover, barriers in transportation and stor-age and in the lack of incentives for bio-CCS remain. In addition to CCS, the pulp and paper industry could mitigate the climate change by increasing the amount of carbon based products, sustainable forestry practices and investments in forestation.
Original languageEnglish
QualificationMaster Degree
Awarding Institution
  • Tampere University of Technology (TUT)
Place of PublicationTampere
Publisher
Publication statusPublished - 2016
MoE publication typeG2 Master's thesis, polytechnic Master's thesis

Fingerprint

Carbon capture
Kraft pulp
Paper and pulp mills
Pulp
Climate change
Costs
Paper and pulp industry
Biofuels
Energy balance
Lignin
Gasification
Calcination
Byproducts
Energy efficiency
Railroad cars
Switches
Recovery
Carbon

Keywords

  • bio-CCS
  • Finnish pulp and paper industry
  • monoethanolamine ab-sorption
  • oxy-fuel combustion
  • oxy-enrichment
  • fuel switch
  • pre-calcination
  • chemical-looping combustion
  • black liquor gasification
  • lignin separation

Cite this

Kouri, S. (2016). Feasibility of Carbon Capture in Kraft Pulp Mills: Master's thesis. Tampere: Tampere University of Technology.
Kouri, Sampo. / Feasibility of Carbon Capture in Kraft Pulp Mills : Master's thesis. Tampere : Tampere University of Technology, 2016. 92 p.
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keywords = "bio-CCS, Finnish pulp and paper industry, monoethanolamine ab-sorption, oxy-fuel combustion, oxy-enrichment, fuel switch, pre-calcination, chemical-looping combustion, black liquor gasification, lignin separation",
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note = "BA3601 PGN: 87 p. + app. 5 p.",
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Kouri, S 2016, 'Feasibility of Carbon Capture in Kraft Pulp Mills: Master's thesis', Master Degree, Tampere University of Technology (TUT), Tampere.

Feasibility of Carbon Capture in Kraft Pulp Mills : Master's thesis. / Kouri, Sampo.

Tampere : Tampere University of Technology, 2016. 92 p.

Research output: ThesisMaster's thesisTheses

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T1 - Feasibility of Carbon Capture in Kraft Pulp Mills

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AU - Kouri, Sampo

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N2 - The purpose of this thesis was to assess the feasibility of carbon capture in Finnish Kraft pulp mills. The feasibilities of thirteen different technology options were evaluated based on their technical maturity, capture potential and estimated break-even price for emission allowance including biogenic emissions. Also the role of pulp and paper in-dustry in climate change mitigation was discussed. The study was conducted by comparing oxy-fuel combustion cases modelled with Balas software and a fuel switch option calculated based on mass and energy balances with results from previous studies. The technical maturity was evaluated based on previous studies and existing commercial activity. The break-even prices from literature were recalculated under the same assumptions for investment costs, commodity costs and supporting policies. Two price estimates were calculated: one including supporting pol-icies and possibly available revenue and another excluding them. The capture potential was estimated using a reference mill scaled to the pulp production rate of 1200 ADt/d. Part of the technologies require large structural changes and were considered available only if the mill is rebuilt. Thus the capture potential in the reference mill was scaled up based on either the capture potential in mills to be rebuilt by 2030 or the capture poten-tial in all Finnish pulp mills. The relevant capture potential was calculated based on the production capacities and the estimated age distribution of the chemical recovery sec-tions in Finnish pulp mills. The results from this thesis were subjected to qualitative and numerical sensitivity analyses. Carbon capture in pulp mills seems feasible only if other revenues than CCS supporting policies are available. These revenues could include by-products like biofuels, higher energy efficiency or increased pulp production. The cases of lignin separation and black liquor gasification to transportation fuels were most cost efficient, but the capture poten-tials were limited to 1.45 Mt(CO2)/a and 0.82 Mt(CO2)/a, respectively. Small scale car-bon capture for utilization could be achieved with pre-calcination, as the break-even price was only around 4.5-7.3 /t(CO2). Large scale implementation of carbon capture in the Finnish pulp mills with monoethanolamine (MEA) absorption had a capture po-tential of up to 12 Mt(CO2)/a, but the break-even price was around 70-80 /t(CO2) ex-cluding transportation and storage costs. Moreover, barriers in transportation and stor-age and in the lack of incentives for bio-CCS remain. In addition to CCS, the pulp and paper industry could mitigate the climate change by increasing the amount of carbon based products, sustainable forestry practices and investments in forestation.

AB - The purpose of this thesis was to assess the feasibility of carbon capture in Finnish Kraft pulp mills. The feasibilities of thirteen different technology options were evaluated based on their technical maturity, capture potential and estimated break-even price for emission allowance including biogenic emissions. Also the role of pulp and paper in-dustry in climate change mitigation was discussed. The study was conducted by comparing oxy-fuel combustion cases modelled with Balas software and a fuel switch option calculated based on mass and energy balances with results from previous studies. The technical maturity was evaluated based on previous studies and existing commercial activity. The break-even prices from literature were recalculated under the same assumptions for investment costs, commodity costs and supporting policies. Two price estimates were calculated: one including supporting pol-icies and possibly available revenue and another excluding them. The capture potential was estimated using a reference mill scaled to the pulp production rate of 1200 ADt/d. Part of the technologies require large structural changes and were considered available only if the mill is rebuilt. Thus the capture potential in the reference mill was scaled up based on either the capture potential in mills to be rebuilt by 2030 or the capture poten-tial in all Finnish pulp mills. The relevant capture potential was calculated based on the production capacities and the estimated age distribution of the chemical recovery sec-tions in Finnish pulp mills. The results from this thesis were subjected to qualitative and numerical sensitivity analyses. Carbon capture in pulp mills seems feasible only if other revenues than CCS supporting policies are available. These revenues could include by-products like biofuels, higher energy efficiency or increased pulp production. The cases of lignin separation and black liquor gasification to transportation fuels were most cost efficient, but the capture poten-tials were limited to 1.45 Mt(CO2)/a and 0.82 Mt(CO2)/a, respectively. Small scale car-bon capture for utilization could be achieved with pre-calcination, as the break-even price was only around 4.5-7.3 /t(CO2). Large scale implementation of carbon capture in the Finnish pulp mills with monoethanolamine (MEA) absorption had a capture po-tential of up to 12 Mt(CO2)/a, but the break-even price was around 70-80 /t(CO2) ex-cluding transportation and storage costs. Moreover, barriers in transportation and stor-age and in the lack of incentives for bio-CCS remain. In addition to CCS, the pulp and paper industry could mitigate the climate change by increasing the amount of carbon based products, sustainable forestry practices and investments in forestation.

KW - bio-CCS

KW - Finnish pulp and paper industry

KW - monoethanolamine ab-sorption

KW - oxy-fuel combustion

KW - oxy-enrichment

KW - fuel switch

KW - pre-calcination

KW - chemical-looping combustion

KW - black liquor gasification

KW - lignin separation

M3 - Master's thesis

PB - Tampere University of Technology

CY - Tampere

ER -

Kouri S. Feasibility of Carbon Capture in Kraft Pulp Mills: Master's thesis. Tampere: Tampere University of Technology, 2016. 92 p.