overview introduction (myself, project) microwave plasma system p&id (paschen curves) ...
TRANSCRIPT
ALTERNATIVE ENERGY FORMS FOR GREEN CHEMISTRY
NON-THERMAL PLASMA (WP3)
JAVIER FERNANDEZ DE LA FUENTE
SUPERVISOR: GIORGOS STEFANIDIS
OVERVIEW
Introduction (myself, project) Microwave plasma system P&ID (Paschen curves) Macroscopic description of the
microwave plasma Timeline
Non-Thermal Plasma – WP3 – 08.07.2013
INTRODUCTION
Non-Thermal Plasma – WP3 – 08.07.2013
INTRODUCTION
OBJECTIVE
Develop a prototype solution of direct chemically efficient CO2 to methanol process enabled by non-thermal microwave plasma catalysis.
TASK 1-WP3 (Delivery time - 15 months)
Development of a small scale plasma (catalytic) reactor integrated with analytical spectroscopic probes foron-line collection of local chemistry data.
Non-Thermal Plasma – WP3 – 08.07.2013
INTRODUCTION
METHODOLOGY
Experiments using bench scale microwave plasma setups.
Parametric study (Power, Flow rates and Inlet composition).
Data Collection with advanced analytical tools, modeling and design and development of scalable equipment.
Non-Thermal Plasma – WP3 – 08.07.2013
INTRODUCTION
GAS PHASE PLASMA-ASSISTED REACTIONS:
CAMERE process (2 steps)
Reverse Water Gas Shift Reaction (RWGS):
1. CO2 + H2 CO + H2Ov (ΔH = 41 KJ/g mol)
2. CO + H2 CH3OH (ΔH = - 92 KJ/g mol)
(Production of methanol and other fuels)
Non-Thermal Plasma – WP3 – 08.07.2013
EXPERIMENTAL SET-UP
Non-Thermal Plasma – WP3 – 08.07.2013
MICROWAVE PLASMA SYSTEM
EXPERIMENTAL SET-UP:
MINIFLOW 200SS
Non-Thermal Plasma – WP3 – 08.07.2013
MICROWAVE PLASMA SYSTEM
EXPERIMENTAL SET-UP:
SURFATRON
Non-Thermal Plasma – WP3 – 08.07.2013
MICROWAVE PLASMA SYSTEM
EXPERIMENTAL SET-UP:NEW WAVEGUIDE CONFIGURATION
Non-Thermal Plasma – WP3 – 08.07.2013
MICROWAVE PLASMA SYSTEM
EXPERIMENTAL SET-UP:
Non-Thermal Plasma – WP3 – 08.07.2013
MICROWAVE PLASMA SYSTEM
EXPERIMENTAL SET-UP:
OPTICAL EMISSION
SPECTROMETER
Non-Thermal Plasma – WP3 – 08.07.2013
Identification of the active species in the plasma zone by measuring emission in a certain wavelength range.
GAS ANALYSIS
Non-Thermal Plasma – WP3 – 08.07.2013
MICROWAVE PLASMA SYSTEM
EXPERIMENTAL SET-UP: FOURIER TRANSFORMINFRARED
SPECTROMETER
Non-Thermal Plasma – WP3 – 08.07.2013
Probe the catalytic surface chemistry (identification of formed bands) by measuring how much of a shinned beam is absorbed by the sample.
MICROWAVE PLASMA SYSTEM
EXPERIMENTAL SET-UP:
MASSSPECTROMETER
Non-Thermal Plasma – WP3 – 08.07.2013
Identification of ionized species (CO, O2, CO2, Ar, H2) present in the plasma zone.
Low-pressure requirements.
P&ID
Non-Thermal Plasma – WP3 – 08.07.2013
P&IDPlasma ignition
Non-Thermal Plasma – WP3 – 08.07.2013
PASCHEN CURVES
Non-Thermal Plasma – WP3 – 08.07.2013
MACROSCOPIC DESCRIPTION
Non-Thermal Plasma – WP3 – 08.07.2013
MACROSCOPIC DESCRIPTION OF THE MICROWAVE PLASMA
TEMPERATURE PROFILE (Surfatron Body)
01000200030004000500060007000
02.557.5
10
12.5
15
17.5
20
22.5
25
27.5
30
32.5
35
37.5
40
42.5
45
47.5
50
0 2.55 7.510 12.515 17.520 22.525 27.530 32.5
T (
deg
C)
X (mm)
Non-Thermal Plasma – WP3 – 08.07.2013
Finite difference method
MACROSCOPY DESCRIPTION OF THE MICROWAVE PLASMA
TEMPERATURE PROFILE (Discharge tube after ignition)
Non-Thermal Plasma – WP3 – 08.07.2013
TIMELINE
Non-Thermal Plasma – WP3 – 08.07.2013
TIMELINE
July 2013 -- December 2013
Improvement P&ID (connections, control system, product analysis)
Safety report Equipment (EOS, MS, FTIR, Thermo-camera) Design a new and more adaptable waveguide configuration Labview as a controlling and programming tool Explore different ways to feed the gases into the reactor
(swirl gas) Design a catalyst for gas phase plasma-assisted reactions
(monolith)
January 2014 -- March 2014
Data generationNon-Thermal Plasma – WP3 –
08.07.2013
Non-Thermal Plasma – WP3 – 08.07.2013