The film boiling reactor: A new environment for chemical processing

AIChE Journal ◽  
2006 ◽  
Vol 52 (7) ◽  
pp. 2582-2595 ◽  
Author(s):  
Bryan J. Urban ◽  
C. Thomas Avedisian ◽  
Wing Tsang
Keyword(s):  
Film Boiling ◽  
Chemical Processing ◽  
Boiling Reactor

Influence of radiation on product yields in a film boiling reactor

AIChE Journal ◽  
2008 ◽  
Vol 54 (2) ◽  
pp. 575-581 ◽  
Author(s):  
C. Thomas Avedisian ◽  
Wing Tsang ◽  
Terence Davidovits ◽  
Jonah R. Allaben
Keyword(s):  
Film Boiling ◽  
Product Yields ◽  
Boiling Reactor

A Film Boiling Reactor for Chemical Processing

2008 ◽  
Author(s):  
Sung Ryel Choi ◽  
C. Thomas Avedisian ◽  
Wing Tsang
Keyword(s):  
Carbon Monoxide ◽  
Platinum Catalyst ◽  
Heated Surface ◽  
Horizontal Tube ◽  
Chemical Reactor ◽  
Methanol Conversion ◽  
Film Boiling ◽  
Molar Ratio ◽  
Inconel 600 ◽  
Boiling Reactor

This paper presents an experimental demonstration of a chemical reactor design based on film boiling, which we term a Film Boiling Reactor (FIBOR). The FIBOR consists of a heated surface coated with a catalyst and immersed in a pool of reactant liquid. Film boiling is established in the liquid and chemical reaction occurs at the surface by reactant gases which evaporate at the liquid/vapor interface and diffuse to the heated surface. In the present study we use a horizontal tube (Inconel 600) immersed in methanol as the means to create the FIBOR. The tube is coated with a platinum catalyst. We show the performance of the reactor concept to produce hydrogen and carbon monoxide. Total flow rates of product gases of approximately 6.5 L/min for a tube surface temperature of around 800°C were measured (product yields depend on catalyst structure). The product gases were measured by gas chromatography which shows a molar ratio of two moles hydrogen to one carbon monoxide as anticipated from the methanol conversion reaction.

Human-hair analysis

1992 ◽  
Vol 50 (1) ◽  
pp. 886-887
Author(s):  
Brenda E. Lambert ◽  
Ernest C. Hammond
Keyword(s):  
Human Hair ◽  
Hair Analysis ◽  
Hair Shaft ◽  
White Female ◽  
Chemical Processing ◽  
X Ray ◽  
Hair Samples ◽  
Wave Technique ◽  
Permanent Wave ◽  
Scanning Electron

The purpose of this study was to examine the external structure of four human hair shaft samples with the scanning Electron Microscope (SEM) and to obtain information regarding the chemical composition of hair by using the attached x ray microanalysis unit.The hair samples were obtained from two female subjects. Sample A was taken from a black female and had not undergone any type of chemical processing. Sample B, C, D were taken from a white female, and were natural, processed, and unpigmented, i.e. “gray”, respectively. Sample C had been bleached, tinted, and chemically altered using a permanent wave technique.

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