Fuel sparing: Control of industrial furnaces using process gas as supplemental fuel

Boisvert, Patrick; Runstedtler, Allan

doi:10.1016/j.applthermaleng.2013.12.047

Cited by 7 publications

(12 citation statements)

References 6 publications

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“…Therefore, the error of enthalpy approximation was estimated. It is noted that the absolute approximation error for HCl at T=3000 K is ~0,008 kJ/mol compared to [7], which 17 % in relative terms [2]. The computed enthalpy is 0,464 kJ/mol.…”

Section: Implementation Detailsmentioning

confidence: 92%

“…At the first testing stage, the forward problem based on Equations (3), (4), (5) was solved. The solution method for the initial system of equations and the polynomials for computing enthalpies and entropies of combustion products are adopted as described in [2] and applied in [11]. Enthalpy balance between fresh and burnt gases serves as closure.…”

Section: Implementation Detailsmentioning

confidence: 99%

“…The problem of combustion gases, which are produced by industrial plants, (or so-called uncertified gases), is actual and open not only in the oil industry, but also in industrial furnaces. It is shown that the use of such gases can save costs on certified fuel natural gas, and avoid overuse [2]. This approach to the issue of non-certified gas burning will follow this article.…”

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confidence: 99%

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Determining the quantitative composition of an unknown gaseous fuel and combustion products from the measured process parameters in the fuel combustion process

Брунеткин¹,

Бондаренко²,

Lysyuk³

2014

Odes’kyi Politechnichnyi Universytet. Pratsi

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Introduction. Due to the continuous increase of the main energy sources price (coal, natural gas, oil products), production and application of unconventional hydrocarbon fuels has drawn a lot of attention recently. These gaseous, liquid and solid fuels can have several origins:-Geological (associated petroleum gas, fracking, firedamp etc.).-Renewable resources (pyrolysis products of organic residuals: slow pyrolysis yields gaseous fuels, while fast pyrolysis yields mainly liquid ones; fermentation of organic waste products, biofuel etc.).-Manufacturing waste (blast furnace gas, residual gases during oil processing, fouling gases in garbage etc.). When conventional fuels using, their composition (standardization), and consecutively their burning capacity, are constant. This allows effective fuel combustion and minimization of pollutant production through modal adjustment of the combustion equipment. Such approach is not suitable for unconventional fuels: their composition, and hence burning capacity, vary during the combustion process. The compositions changes randomly at any time point. Burning equipment can provide independent control of fuel and oxidizer (air) supply. In such case, combustion of a fuel with unknown composition using a nearly stoichiometric oxidizer ratio can be achieved as follows. For a given fuel supply rate, air supply is controlled by a maximumtemperature feedback control system. Maximum temperature is achieved by oxidizer excess coefficient close to 1.0. Other methods can be used for optimal combustion of a fuel with unknown composition [1]. Planning of the optimal fuel combustion represents a necessary but not sufficient condition for its efficient use. Combustion products are high-temperature multi-component chemically reactive mixtures. Determination of the equilibrium composition and properties of such mixtures is part of many tasks of high-temperature energy generation. This is done mostly using theory and computation. The lack of knowledge of the fuel composition and combustion products does not allow performing such computations. The composition of an unknown substance or substances mixture, if constant in time, can be determined in different ways: spectroscopy, methods of analytical chemistry, for gas mixtures-using gas analyzers. All these methods share a number of drawbacks: high costs, bulky, large residence times and, hence, delays. This makes them difficult to integrate in an automatic combustion control system. Gas analyzers require a list of gases in the mixture. Application of gas analyzers is additionally complicated by the presence of undesirable components in the secondary energy sources, which leads to additional deterioration and failure of primary equipment. The price of a system grows with the size of this list.

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Section: Implementation Detailsmentioning

confidence: 92%

Section: Implementation Detailsmentioning

confidence: 99%

mentioning

confidence: 99%

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Determining the quantitative composition of an unknown gaseous fuel and combustion products from the measured process parameters in the fuel combustion process

Брунеткин¹,

Бондаренко²,

Lysyuk³

2014

Odes’kyi Politechnichnyi Universytet. Pratsi

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“…Вопрос сжигания газов, полученных от про-мышленных установок, или как их можно назвать -несертифицированных газов, открыт не только в нефте-перерабатывающей промышленности, но и на промыш-ленных печах [1]. В работе показано, что использование такого рода газов позволяет сэкономить затраты на сертифицированное топливо -природный газ, и избе-жать его чрезмерного использования.…”

Section: анализ литературных источниковunclassified

The mathematical model of non-certified fuel combustion

Добровольская¹,

Maksimov²,

Lozhechnikov³

et al. 2014

EEJET

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“…Thus, an attractive solution to monetize flare gas sources is to utilize their waste heat as fuels. As reported, a systematic network of pipelines, valves, compressors, turbines, heaters, coolers, and controllers can be designed to collect various fuels, fuel gases, and waste gases from all internal or external sources, mix them in appropriate proportions, and then supply them to various sinks in plants .…”

Section: Introductionmentioning

confidence: 99%

Integrated Ejector‐Based Flare Gas Recovery and On‐Site Desalination of Produced Water in Shale Gas Production

Mazumder

Chen

2019

Chem Eng & Technol

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Flaring is a major concern in the oil and gas industry as it wastes valuable raw materials/energy and emits a substantial amount of air pollutants. The produced water treatment during oil and gas production is very troublesome due to its large processing volume, high salinity, and expensive disposal cost. Thus, the on-site integration of the flaring gas recovery (FGR) and desalination processes for handling the produced water could not only monetize flare emission sources but could also generate freshwater for versatile usages. Here, a novel process was developed integrating the ejector-based FGR (EFGR) process with the thermal vapor compression (TVC)-based desalination process. The newly developed EFGR-TVC process is shown to be technically viable and cost-effective under normal operating conditions.

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Fuel sparing: Control of industrial furnaces using process gas as supplemental fuel

Cited by 7 publications

References 6 publications

Determining the quantitative composition of an unknown gaseous fuel and combustion products from the measured process parameters in the fuel combustion process

Determining the quantitative composition of an unknown gaseous fuel and combustion products from the measured process parameters in the fuel combustion process

The mathematical model of non-certified fuel combustion

Integrated Ejector‐Based Flare Gas Recovery and On‐Site Desalination of Produced Water in Shale Gas Production

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