Preliminary test on combustion of wood derived fast pyrolysis oils in a gas turbine combustor

Juste, Gregorio López; Monfort, José Juan Salvá

doi:10.1016/s0961-9534(00)00023-4

Cited by 70 publications

(37 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The surface tension of pyrolysis oil at room temperature can be as high as 40 mN/m, but mostly varies between 29 and 36 mN/m [16,32,56,95,130,142,150]. These values are higher than those of conventional gas turbine fuels at room temperature, such as No.…”

Section: Implications For Pyrolysis Oil Combustionmentioning

confidence: 95%

“…The high sensitivity of the pressure-swirl method to this property also follows from the present atomization study. Although the viscosity of pyrolysis oil is not welldefined since it depends on the feedstock, the production process and the oil's age, the typical values reported in the literature vary between 5 and 30 cP for a temper- ature of 80 • C [15,95,104,114]. Higher temperatures should be avoided because of the chemical instability of this biofuel [15].…”

Section: Implications For Pyrolysis Oil Combustionmentioning

confidence: 99%

“…Gas turbines are relatively fuel-flexible and are capable of generating power on both large and small scales, suiting the demands of the future energy system. Pyrolysis oil combustion in gas turbines has therefore been subject of a few experimental studies in the past years [10,95,97,122,138,143]. These studies, conducted in both scientific and industrial test rigs, have shown that the use of pure pyrolysis oil often leads to major problems.…”

Section: Introductionmentioning

confidence: 99%

“…López Juste and Salvá Monfort [95] studied the general appearance of a pyrolysis oil spray produced by a pressure-swirl atomizer in preparation for combustion tests. To obtain a viscosity below 10 cP, the pyrolysis oil was preheated to 115 • C. They found that the spray angle decreased from the standard value of 60 • for diesel to only 20 • for pyrolysis oil.…”

Section: Introductionmentioning

confidence: 99%

“…For this reason, pyrolysis oil is not directly suitable for use in combustion devices, including gas turbines. The few attempts that have been made revealed major problems as incomplete combustion, flame instability and coke formation on combustor walls [10,95,97,122,138,143]. Therefore, it is generally concluded that fuel blending or thorough modification of the gas turbine is required for successful application.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

On the atomization and combustion of liquid biofuels in gas turbines : towards the application of biomass-derived pyrolysis oil

Sallevelt¹

View full text Add to dashboard Cite

This document was typeset using L A T E X.Cover image: Structure of a water spray produced by a pressure-swirl atomizer. SummaryThe combustion of liquid biofuels in gas turbines is an efficient way of generating heat and power from biomass. Gas turbines play a major role in the global energy supply and are suitable for a wide range of applications. However, biofuels generally have different properties compared to the conventional fossil fuels. This can lead to various problems when biofuels are directly used in existing installations.This thesis aims to provide better insights into the combustion of biomass-derived pyrolysis oil in gas turbines. Pyrolysis oil can be produced from non-edible biomass via the fast pyrolysis process. In this process, the organic matter is thermally decomposed under mild conditions (~500 • C, 1 atm) through rapid heating in an oxygenfree environment. The vapors formed in the reactor are subsequently condensed to obtain a combustible liquid as the main product. In comparison to the most common biofuels of the first generation, i.e. bioethanol and biodiesel, pyrolysis oil has advantages regarding cost and environmental benefits. From a technical point of view, however, it is a less favorable fuel due properties such as a low heating value, high water content, high acidity, high viscosity, increased surface tension and poor stability. Gas turbines therefore need to be modified before they can successfully operate on pyrolysis oil in pure form. One of the essential tasks is to develop a suitable burner for liquid fuels of such low quality. In this thesis, two research objectives have been formulated to support the development of pyrolysis oil combustion technology.The first objective is to describe the evaporation and flame characteristics of pyrolysis oil. This objective has been addressed by developing a CFD model based on the Euler-Lagrange method in ANSYS Fluent. The modeling approach was first applied to simulate the combustion of ethanol in a modified, downscaled diesel burner of the OPRA OP16 gas turbine rated at 1.9 MW e . This part of the numerical work can be regarded as a first step to validate the model against experiments and literature. Ethanol is a suitable replacement of pyrolysis oil for this purpose, since it is a singlecomponent, nonviscous, volatile and clean burning biofuel that has been studied more extensively in the past. In the next step, the model was further developed to simulate the full-scale combustion of pyrolysis oil in a burner that was recently designed by OPRA for biofuel applications. The complex composition of pyrolysis oil has been approximated by means of a surrogate fuel containing seven components: methanol, water, acetic acid, acetol, phenol, eugenol and levoglucosan. Each comv ponent is known to be present in pyrolysis oil and is used to represent a group of constituents with similar properties. The initial mass fractions of the seven components are chosen such that the surrogate fuel matches the volatility, water content, elemental composition...

show abstract

Section: Implications For Pyrolysis Oil Combustionmentioning

confidence: 95%

Section: Implications For Pyrolysis Oil Combustionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

On the atomization and combustion of liquid biofuels in gas turbines : towards the application of biomass-derived pyrolysis oil

Sallevelt¹

View full text Add to dashboard Cite

show abstract

Catalytic effect of MgCl₂ on cotton stalk pyrolysis for chemical production at low temperature

et al. 2015

View full text Add to dashboard Cite

Cotton stalk pyrolysis catalyzed by magnesium chloride was carried out in a fixed bed reactor in a temperature range of 493–553 K. The feedstock characteristics, product distribution, pyrolysis oil composition, and solid residue composition were analyzed. The presence of MgCl2 significantly changed the product distribution of the pyrolysis oil and oils with only two targeted chemicals successfully collected for the purpose of chemical production. The effects of catalyst loading and pyrolysis temperature on pyrolysis behaviour for the furfural and acetic acid production were studied systematically. The furfural and acetic acid concentration in pyrolysis oil increased in the presence of magnesium chloride in our investigated temperature range. The furfural and acetic acid contents in water‐free pyrolysis oil are about 54 % and 28 % when the pyrolysis temperature is 553 K. The results of solid product analysis showed that 85 % of hemicellulose was decomposed, while cellulose and lignin were relatively stable. This study makes it possible to produce chemicals from biomass material through a multi‐step pyrolysis process.

show abstract

Advances in Biofueling of Micro Gas Turbines for Power Generation

Okoroigwe

Madhlopa

2019

Energy Tech

View full text Add to dashboard Cite

The micro gas turbine (MGT) technology is gaining momentum in distributed energy solutions. Nevertheless, this technology is predominantly fueled by fossil energy resources at present. The use of biofuels to propel micro gas turbines (MGTs) for power generation is one of the most promising ways to reduce greenhouse gas emission resulting from fossil fuel consumption in power plants and to enhance energy security. Herein, various approaches to integrate biofuels into the MGT system for power generation are reviewed. It is found that biogas‐driven MGTs are in the most advanced stage of technological maturity. From an economic perspective, previous works show that combustion of biogas is most viable in a combined heat and power system compared to only power or heat generation. Nevertheless, the deployment of MGTs for commercial generation of power is scarce, which indicates that this sector is encountering some challenges. One of the major concerns about the exploitation of biofuels in gas turbines relates to fuel properties and combustion characteristics. Other challenges are also presented and discussed, and further research on the commercial production and combustion of biofuels in MGT engines is recommended.

show abstract

Preliminary test on combustion of wood derived fast pyrolysis oils in a gas turbine combustor

Cited by 70 publications

References 1 publication

On the atomization and combustion of liquid biofuels in gas turbines : towards the application of biomass-derived pyrolysis oil

On the atomization and combustion of liquid biofuels in gas turbines : towards the application of biomass-derived pyrolysis oil

Catalytic effect of MgCl₂ on cotton stalk pyrolysis for chemical production at low temperature

Advances in Biofueling of Micro Gas Turbines for Power Generation

Contact Info

Product

Resources

About

Preliminary test on combustion of wood derived fast pyrolysis oils in a gas turbine combustor

Cited by 70 publications

References 1 publication

On the atomization and combustion of liquid biofuels in gas turbines : towards the application of biomass-derived pyrolysis oil

On the atomization and combustion of liquid biofuels in gas turbines : towards the application of biomass-derived pyrolysis oil

Catalytic effect of MgCl2 on cotton stalk pyrolysis for chemical production at low temperature

Advances in Biofueling of Micro Gas Turbines for Power Generation

Contact Info

Product

Resources

About

Catalytic effect of MgCl₂ on cotton stalk pyrolysis for chemical production at low temperature