Spreadsheet calculations for the combustion of hydrocarbons

Added Title

Chemical engineering in the 21st century

College

Gokongwei College of Engineering

Department/Unit

Chemical Engineering

Document Type

Conference Proceeding

Source Title

2002 Chemical Engineering Congress - De La Salle University

First Page

G1-1

Last Page

G1-4

Publication Date

12-6-2002

Abstract

Reactive processes calculations like combustion reactions have been one of the most difficult subjects for students starting to take professional subjects in chemical engineering. Hydrocarbons mostly the low molecular weight alkanes, alkenes and alkynes undergo either complete or incomplete combustion in the presence of air. To facilitate the students in evaluation their calcula­­tions, a spreadsheet using Microsoft Excel® was developed to compute for the flue gas analysis of the combustion of these hydrocarbons varying the amount of fuel in moles, percentage conversion, percentage excess air and percentage conversion of fuel to CO and/or CO₂. these parameters, when varied give the students confusion in arriving with the flue gas analysis particularly when the free oxygen is determined. The flue gas analysis is presented in dry (Orsat) and wet basis in percentage by mass and mole. The average molecular weight is not oxidized to form its various oxides. Furthermore, the basic chemical reaction for complete and incomplete combustion was used, that is, forming CO or CO₂ and water upon combustion with N₂, free O₂ and some unburned fuel in the flue gas

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Disciplines

Chemical Engineering

Note

Conference theme: Chemical engineering in the 21st century

Keywords

Chemical Engineering Congress (2002 : Angelo King International Center; Manila)

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