Improvements in the performance of a medium-pressure-boiler through the adjustment of inlet fuels in a refinery plant

Chien li Lee, Chih Ju G. Jou, Cheng Hsien Tsai, H. Paul Wang

Research output: Contribution to journalReview article

9 Citations (Scopus)

Abstract

Hydrogen has been considered as a promising alternative for fossil fuel in recent years because it is very "clean". Fossil fuel generates CO2, CO, SOx, unburned hydrocarbon and particles during combustion, while hydrogen only yields NOx. In this study, a medium-pressure boiler with 130 ton/h boiler loading in a full-scale plant was studied with two inlet hydrogen-rich refinery gas (RG)/fuel oil (FO) volumetric flow rate ratios (inlet RG/FO ratio) and two residual O2 concentration (vol.%) in flue gases (2%, 4%) to evaluate their influence on the emissions of NOx and CO2, flue gas temperatures and boiler efficiencies. The result shows significant improvements in both boiler efficiencies and emissions of air pollutants. By increasing the inlet RG/FO ratio from 1:5 to 1:1.5, the fuel cost was reduced by 11%, NOx emission down by 12%, and the CO2 emission 20,200 ton lower per year was achieved. Thus, better economic operating conditions for the boiler are suggested at inlet RG/FO ratio = 1:1.5 with the residual O2 concentration in flue gases = 2%.

Original languageEnglish
Pages (from-to)625-631
Number of pages7
JournalFuel
Volume86
Issue number5-6
DOIs
Publication statusPublished - 2007 Mar 1

Fingerprint

Fuel Oils
Gas fuels
Boilers
Fuel oils
Flue gases
Hydrogen
Fossil fuels
Air Pollutants
Carbon Monoxide
Hydrocarbons
Flow rate
Economics
Air
Costs
Temperature

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Fuel Technology
  • Energy Engineering and Power Technology
  • Organic Chemistry

Cite this

Lee, Chien li ; Jou, Chih Ju G. ; Tsai, Cheng Hsien ; Wang, H. Paul. / Improvements in the performance of a medium-pressure-boiler through the adjustment of inlet fuels in a refinery plant. In: Fuel. 2007 ; Vol. 86, No. 5-6. pp. 625-631.
@article{ead77e9f344a4b6b876328571da86c87,
title = "Improvements in the performance of a medium-pressure-boiler through the adjustment of inlet fuels in a refinery plant",
abstract = "Hydrogen has been considered as a promising alternative for fossil fuel in recent years because it is very {"}clean{"}. Fossil fuel generates CO2, CO, SOx, unburned hydrocarbon and particles during combustion, while hydrogen only yields NOx. In this study, a medium-pressure boiler with 130 ton/h boiler loading in a full-scale plant was studied with two inlet hydrogen-rich refinery gas (RG)/fuel oil (FO) volumetric flow rate ratios (inlet RG/FO ratio) and two residual O2 concentration (vol.{\%}) in flue gases (2{\%}, 4{\%}) to evaluate their influence on the emissions of NOx and CO2, flue gas temperatures and boiler efficiencies. The result shows significant improvements in both boiler efficiencies and emissions of air pollutants. By increasing the inlet RG/FO ratio from 1:5 to 1:1.5, the fuel cost was reduced by 11{\%}, NOx emission down by 12{\%}, and the CO2 emission 20,200 ton lower per year was achieved. Thus, better economic operating conditions for the boiler are suggested at inlet RG/FO ratio = 1:1.5 with the residual O2 concentration in flue gases = 2{\%}.",
author = "Lee, {Chien li} and Jou, {Chih Ju G.} and Tsai, {Cheng Hsien} and Wang, {H. Paul}",
year = "2007",
month = "3",
day = "1",
doi = "10.1016/j.fuel.2006.09.001",
language = "English",
volume = "86",
pages = "625--631",
journal = "Fuel",
issn = "0016-2361",
publisher = "Elsevier BV",
number = "5-6",

}

Improvements in the performance of a medium-pressure-boiler through the adjustment of inlet fuels in a refinery plant. / Lee, Chien li; Jou, Chih Ju G.; Tsai, Cheng Hsien; Wang, H. Paul.

In: Fuel, Vol. 86, No. 5-6, 01.03.2007, p. 625-631.

Research output: Contribution to journalReview article

TY - JOUR

T1 - Improvements in the performance of a medium-pressure-boiler through the adjustment of inlet fuels in a refinery plant

AU - Lee, Chien li

AU - Jou, Chih Ju G.

AU - Tsai, Cheng Hsien

AU - Wang, H. Paul

PY - 2007/3/1

Y1 - 2007/3/1

N2 - Hydrogen has been considered as a promising alternative for fossil fuel in recent years because it is very "clean". Fossil fuel generates CO2, CO, SOx, unburned hydrocarbon and particles during combustion, while hydrogen only yields NOx. In this study, a medium-pressure boiler with 130 ton/h boiler loading in a full-scale plant was studied with two inlet hydrogen-rich refinery gas (RG)/fuel oil (FO) volumetric flow rate ratios (inlet RG/FO ratio) and two residual O2 concentration (vol.%) in flue gases (2%, 4%) to evaluate their influence on the emissions of NOx and CO2, flue gas temperatures and boiler efficiencies. The result shows significant improvements in both boiler efficiencies and emissions of air pollutants. By increasing the inlet RG/FO ratio from 1:5 to 1:1.5, the fuel cost was reduced by 11%, NOx emission down by 12%, and the CO2 emission 20,200 ton lower per year was achieved. Thus, better economic operating conditions for the boiler are suggested at inlet RG/FO ratio = 1:1.5 with the residual O2 concentration in flue gases = 2%.

AB - Hydrogen has been considered as a promising alternative for fossil fuel in recent years because it is very "clean". Fossil fuel generates CO2, CO, SOx, unburned hydrocarbon and particles during combustion, while hydrogen only yields NOx. In this study, a medium-pressure boiler with 130 ton/h boiler loading in a full-scale plant was studied with two inlet hydrogen-rich refinery gas (RG)/fuel oil (FO) volumetric flow rate ratios (inlet RG/FO ratio) and two residual O2 concentration (vol.%) in flue gases (2%, 4%) to evaluate their influence on the emissions of NOx and CO2, flue gas temperatures and boiler efficiencies. The result shows significant improvements in both boiler efficiencies and emissions of air pollutants. By increasing the inlet RG/FO ratio from 1:5 to 1:1.5, the fuel cost was reduced by 11%, NOx emission down by 12%, and the CO2 emission 20,200 ton lower per year was achieved. Thus, better economic operating conditions for the boiler are suggested at inlet RG/FO ratio = 1:1.5 with the residual O2 concentration in flue gases = 2%.

UR - http://www.scopus.com/inward/record.url?scp=33845624901&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33845624901&partnerID=8YFLogxK

U2 - 10.1016/j.fuel.2006.09.001

DO - 10.1016/j.fuel.2006.09.001

M3 - Review article

AN - SCOPUS:33845624901

VL - 86

SP - 625

EP - 631

JO - Fuel

JF - Fuel

SN - 0016-2361

IS - 5-6

ER -