Techno-economic analysis of coal to liquids based on direct coal liquefaction technology

Ye Huang, Sina Rezvani, Angela Rolfe, Flavio Franco, Colin Snape, Neil Hewitt

Research output: Contribution to conferenceAbstract

3 Citations (Scopus)

Abstract

Direct coal liquefaction (DCL) is the conversion of coal in which coal is transformed into liquid hydrocarbon-based fuels through chemical reactions at elevated pressures and temperatures without being gasified to form syngas. The main objective of this paper is to carry out a comprehensive thermodynamic and economic evaluation for the DCL process based on the two primary conversion options under consideration: (a) Catalytic Coal Liquefaction (CCL) - the use of non-donor solvents with added hydrogen pressure; (b) Thermal Coal Liquefaction (TCL) - the use of solvents with some H-donor properties without hydrogen pressure and catalysts in the coal liquefaction reactor. For this purpose, steady-state process models for the DCL process are developed. The process modules address only the primary DCL processes and do not include any upgrading to transport fuels and chemicals as this will be conducted at refinery facilities by co-processing with petroleum fractions. To better understand the technical parameters and benefits of each scenario, a technical analysis has been conducted using the ECLIPSE modelling software. The overall cost estimation is carried out based on the cost of individual modules. The economic viability of catalytic and thermal direct coal liquefactions is also analysed in the paper.
Technical results showed that the oil yields (light and middle distillates) were around 998 barrels per day from the CCL process and 702 barrels per day from the TCL process when the feed rate of Brown Coal was 256 tonnes per day (on dry and ash free basis). Based on economic assumptions the light and middle distillate price would be €54.2/barrel with the CCL technology and €59.9/barrel with the TCL technology.
LanguageEnglish
Pages15-16
Number of pages1
Publication statusPublished - 15 May 2019

Fingerprint

Coal liquefaction
Economic analysis
Coal
Liquids
Ashes
Hydrogen
Economics
Petroleum distillates
Lignite
Costs
Chemical reactions

Keywords

  • Coal liquefaction
  • Catalytic reaction
  • Thermal extraction
  • SynCrude
  • Hydrogenation

Cite this

@conference{25afd4f2bea64ae1aab8c94479078463,
title = "Techno-economic analysis of coal to liquids based on direct coal liquefaction technology",
abstract = "Direct coal liquefaction (DCL) is the conversion of coal in which coal is transformed into liquid hydrocarbon-based fuels through chemical reactions at elevated pressures and temperatures without being gasified to form syngas. The main objective of this paper is to carry out a comprehensive thermodynamic and economic evaluation for the DCL process based on the two primary conversion options under consideration: (a) Catalytic Coal Liquefaction (CCL) - the use of non-donor solvents with added hydrogen pressure; (b) Thermal Coal Liquefaction (TCL) - the use of solvents with some H-donor properties without hydrogen pressure and catalysts in the coal liquefaction reactor. For this purpose, steady-state process models for the DCL process are developed. The process modules address only the primary DCL processes and do not include any upgrading to transport fuels and chemicals as this will be conducted at refinery facilities by co-processing with petroleum fractions. To better understand the technical parameters and benefits of each scenario, a technical analysis has been conducted using the ECLIPSE modelling software. The overall cost estimation is carried out based on the cost of individual modules. The economic viability of catalytic and thermal direct coal liquefactions is also analysed in the paper.Technical results showed that the oil yields (light and middle distillates) were around 998 barrels per day from the CCL process and 702 barrels per day from the TCL process when the feed rate of Brown Coal was 256 tonnes per day (on dry and ash free basis). Based on economic assumptions the light and middle distillate price would be €54.2/barrel with the CCL technology and €59.9/barrel with the TCL technology.",
keywords = "Coal liquefaction, Catalytic reaction, Thermal extraction, SynCrude, Hydrogenation",
author = "Ye Huang and Sina Rezvani and Angela Rolfe and Flavio Franco and Colin Snape and Neil Hewitt",
year = "2019",
month = "5",
day = "15",
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pages = "15--16",

}

Techno-economic analysis of coal to liquids based on direct coal liquefaction technology. / Huang, Ye; Rezvani, Sina; Rolfe, Angela; Franco, Flavio; Snape, Colin; Hewitt, Neil.

2019. 15-16.

Research output: Contribution to conferenceAbstract

TY - CONF

T1 - Techno-economic analysis of coal to liquids based on direct coal liquefaction technology

AU - Huang, Ye

AU - Rezvani, Sina

AU - Rolfe, Angela

AU - Franco, Flavio

AU - Snape, Colin

AU - Hewitt, Neil

PY - 2019/5/15

Y1 - 2019/5/15

N2 - Direct coal liquefaction (DCL) is the conversion of coal in which coal is transformed into liquid hydrocarbon-based fuels through chemical reactions at elevated pressures and temperatures without being gasified to form syngas. The main objective of this paper is to carry out a comprehensive thermodynamic and economic evaluation for the DCL process based on the two primary conversion options under consideration: (a) Catalytic Coal Liquefaction (CCL) - the use of non-donor solvents with added hydrogen pressure; (b) Thermal Coal Liquefaction (TCL) - the use of solvents with some H-donor properties without hydrogen pressure and catalysts in the coal liquefaction reactor. For this purpose, steady-state process models for the DCL process are developed. The process modules address only the primary DCL processes and do not include any upgrading to transport fuels and chemicals as this will be conducted at refinery facilities by co-processing with petroleum fractions. To better understand the technical parameters and benefits of each scenario, a technical analysis has been conducted using the ECLIPSE modelling software. The overall cost estimation is carried out based on the cost of individual modules. The economic viability of catalytic and thermal direct coal liquefactions is also analysed in the paper.Technical results showed that the oil yields (light and middle distillates) were around 998 barrels per day from the CCL process and 702 barrels per day from the TCL process when the feed rate of Brown Coal was 256 tonnes per day (on dry and ash free basis). Based on economic assumptions the light and middle distillate price would be €54.2/barrel with the CCL technology and €59.9/barrel with the TCL technology.

AB - Direct coal liquefaction (DCL) is the conversion of coal in which coal is transformed into liquid hydrocarbon-based fuels through chemical reactions at elevated pressures and temperatures without being gasified to form syngas. The main objective of this paper is to carry out a comprehensive thermodynamic and economic evaluation for the DCL process based on the two primary conversion options under consideration: (a) Catalytic Coal Liquefaction (CCL) - the use of non-donor solvents with added hydrogen pressure; (b) Thermal Coal Liquefaction (TCL) - the use of solvents with some H-donor properties without hydrogen pressure and catalysts in the coal liquefaction reactor. For this purpose, steady-state process models for the DCL process are developed. The process modules address only the primary DCL processes and do not include any upgrading to transport fuels and chemicals as this will be conducted at refinery facilities by co-processing with petroleum fractions. To better understand the technical parameters and benefits of each scenario, a technical analysis has been conducted using the ECLIPSE modelling software. The overall cost estimation is carried out based on the cost of individual modules. The economic viability of catalytic and thermal direct coal liquefactions is also analysed in the paper.Technical results showed that the oil yields (light and middle distillates) were around 998 barrels per day from the CCL process and 702 barrels per day from the TCL process when the feed rate of Brown Coal was 256 tonnes per day (on dry and ash free basis). Based on economic assumptions the light and middle distillate price would be €54.2/barrel with the CCL technology and €59.9/barrel with the TCL technology.

KW - Coal liquefaction

KW - Catalytic reaction

KW - Thermal extraction

KW - SynCrude

KW - Hydrogenation

M3 - Abstract

SP - 15

EP - 16

ER -