Presentation is loading. Please wait.

Presentation is loading. Please wait.

Catalytic Destruction of Gaseous Freons

Published byAlberta Caldwell Modified over 5 years ago

Similar presentations

Presentation on theme: "Catalytic Destruction of Gaseous Freons"— Presentation transcript:

1 Catalytic Destruction of Gaseous Freons
Desiree Polson Departments of Chemical and Environmental Engineering and Atmospheric Sciences at The University of Arizona Advised by Dr. Eric Betterton 19 April 2008

2 Background Information on CFCs
Chlorofluorocarbons (CFCs)-Harmless to humans Commonly used until recently (1987)

3 CFCs are a problem UV light CFCs

4 The Ozone Hole

5 The Solution Use of Soil Vapor Extraction (SVE) to treat areas
Treatment of CFCs with Pt/Rh catalyst

6 Soil Vapor Extraction (SVE)

7 Flow Diagram of Reactor
HCl HF

8 View of Reactor and Catalyst

9 Discoveries H

10 Conclusion and Acknowledgments
This process does break down CFCs One step closer to helping the stratospheric ozone layer NASA Space Grant Susan Brew Eric Betterton, Eduardo Saez, Robert Arnold, Brian Barbaris Erik Rupp, Marty Willinger Suzanne Richards, Jagoda Vojvodic

Download ppt "Catalytic Destruction of Gaseous Freons"

Similar presentations

Atmosphere and Climate ChangeSection 2 The Ozone Shield Ozone is a molecule made of three oxygen atoms. UV light is harmful to organisms because it can.

Atmosphere and Climate ChangeSection 2 The Ozone Shield Ozone is a molecule made of three oxygen atoms. UV light is harmful to organisms because it can.
5-2. OZONE LAYER 5-1-1. Formation of Ozone Layer  Ozone layer: A part of stratosphere (ca. 20km high) in which ozone concentration is relatively high.

5-2. OZONE LAYER Formation of Ozone Layer  Ozone layer: A part of stratosphere (ca. 20km high) in which ozone concentration is relatively high.
Modeling Advanced Oxidation Processes for Water Treatment Ashley N. Anhalt, A. Eduardo Sáez, Robert G. Arnold, and Mario R. Rojas Department of Chemical.

Modeling Advanced Oxidation Processes for Water Treatment Ashley N. Anhalt, A. Eduardo Sáez, Robert G. Arnold, and Mario R. Rojas Department of Chemical.
OZONE Stratospheric Tropospheric Summary Basics Issues ©2003, Perry Samson, University of Michigan The good, the bad & the ugly.

OZONE Stratospheric Tropospheric Summary Basics Issues ©2003, Perry Samson, University of Michigan The good, the bad & the ugly.
Alejandro Martínez Erick Castillo Giuliana Villegas

Alejandro Martínez Erick Castillo Giuliana Villegas
Catalytic Destruction of Gas-Phase PCE and TCE in Groundwater and Soils - Laboratory Study & Field Investigation Departments of Atmospheric Sciences &

Catalytic Destruction of Gas-Phase PCE and TCE in Groundwater and Soils - Laboratory Study & Field Investigation Departments of Atmospheric Sciences &
Ozone is made of three oxygen atoms - O 3 Ozone. OZONE – A Greenhouse gas Greenhouse gas. Near ground it is a nasty pollution In the stratosphere it protects.

Ozone is made of three oxygen atoms - O 3 Ozone. OZONE – A Greenhouse gas Greenhouse gas. Near ground it is a nasty pollution In the stratosphere it protects.
Ozone depletion Eimantė Kupčiūnaitė IVa. What is it? Ozone depletion is ozone decrease and hole formation in a layer of earth's atmosphere, which contains.

Ozone depletion Eimantė Kupčiūnaitė IVa. What is it? Ozone depletion is ozone decrease and hole formation in a layer of earth's atmosphere, which contains.
Earth’s Changing Environment Lecture 5 Depletion of the Ozone Layer.

Earth’s Changing Environment Lecture 5 Depletion of the Ozone Layer.
OZONE and the ENVIRONMENT

OZONE and the ENVIRONMENT
February 28, 2007 1 Catalytic Destruction of PCE and TCE in Soil Vapor – Laboratory and Field Studies Department of Chemical & Environmental Engineering.

February 28, Catalytic Destruction of PCE and TCE in Soil Vapor – Laboratory and Field Studies Department of Chemical & Environmental Engineering.
Ozone Layer.

Ozone Layer.
Our Natural Protection Against UV light. The Ozone layer that blocks out the sun’s harmful rays is being depleted. Todd Olsen Professor Kimball Chem 1A.

Our Natural Protection Against UV light. The Ozone layer that blocks out the sun’s harmful rays is being depleted. Todd Olsen Professor Kimball Chem 1A.
REaction Rates and Equilibrium How Fast and How Far.

REaction Rates and Equilibrium How Fast and How Far.
The Ozone Layer Author: Patrick Mathias Purpose: To understand how the ozone layer protects people from UV radiation, and how the ozone layer is depleted.

The Ozone Layer Author: Patrick Mathias Purpose: To understand how the ozone layer protects people from UV radiation, and how the ozone layer is depleted.
Common ozone depletion myths There is overwhelming evidence that humans are responsible for the Antarctic ozone hole. And there is strong evidence that.

Common ozone depletion myths There is overwhelming evidence that humans are responsible for the Antarctic ozone "hole". And there is strong evidence that.
Chapter 1: Introduction to Chemistry Section 1.1 –The Stories of Two Chemicals.

Chapter 1: Introduction to Chemistry Section 1.1 –The Stories of Two Chemicals.
Using Model-Based Systems Engineering at Osiris-ReX Stephania Vasilieva University of Arizona Advisor: Roberto Furfaro Assistant Professor, Department.

Using Model-Based Systems Engineering at Osiris-ReX Stephania Vasilieva University of Arizona Advisor: Roberto Furfaro Assistant Professor, Department.
Essential Questions: 1) What role have humans played in the destruction of the Ozone Layer? 2) Why should humans be concerned about the destruction of.

Essential Questions: 1) What role have humans played in the destruction of the Ozone Layer? 2) Why should humans be concerned about the destruction of.
Heather Price North Seattle College

Heather Price North Seattle College

Similar presentations

Ads by Google