Joost Lotters, Bronkhorst UK

1. BIOMETHANE PRODUCTION –
CONNECTING TO THE GAS GRID
#UKADBiogas @adbioresources
CHAIR:
STUART EASTERBROOK, NATIONAL GRID
PANEL:
JOOST LÖTTERS, BRONKHORST HIGH-TECH BV
JON HARRIS, MALMBERG
RICHARD GOODFELLOW, ADDLESHAW GODDARD
DR WILL MEZZULLO, FUTURE BIOGAS
KEVIN FERNANDES, IMSPEX DIAGNOSTICS

2. Real time composition determination
of natural gas
Joost Lötters, Egbert van der Wouden, Jarno Groenesteijn,
Wouter Sparreboom, Theo Lammerink, Remco Wiegerink

3. Problem
• huge variation in the composition and quality of the
natural gas in national gas grids (Wobbe Index [MJ/m3])
Causes
• blending of natural gas from different countries
• the addition of biogas
• periodical variations in both gas types
Introduction

4.
Monitoring the gas quality
Solutions:
We can determine the calorific value of the gas by:
- Combustion (Wobbe index meter)
- Correlation (Multiparameter system)
For both solutions we need a Coriolis flow meter
suited for accurate measurement of gas
- Flow
- Density

5. Multiparameter Flow Measurement System

6. Multiparameter Flow Measurement System
Two ways of modelling:
(1) Composition determination via n equations with n unknowns (n ≤ 4)
(2) Wobbe index determination via correlation with the measured parameters
(1)
(2)

7. Multiparameter Flow Measurement Set-up
Density sensor
Coriolis flow
sensor
Thermal flow
sensor
Differential pressure
sensor

8. THE PROOF OF THE PUDDING …
Field test at a supplier to the German gas grid

9. … IS IN THE EATING
Field test at a supplier to the German gas grid

10. Thank you for your attention!
Density sensor
Coriolis flow
sensor
Thermal flow
sensor
Differential
pressure sensor

11. BIOMETHANE PRODUCTION –
CONNECTING TO THE GAS GRID
#UKADBiogas @adbioresources
CHAIR:
STUART EASTERBROOK, NATIONAL GRID
PANEL:
JOOST LÖTTERS, BRONKHORST HIGH-TECH BV
JON HARRIS, MALMBERG
RICHARD GOODFELLOW, ADDLESHAW GODDARD
DR WILL MEZZULLO, FUTURE BIOGAS
KEVIN FERNANDES, IMSPEX DIAGNOSTICS