The glass manufacturing sector encompasses long-standing craftsmanship and modern production processes which need fostering.
EU ETS – No trade-off on Fairness
EUETS Post 2020: Energy-Intensive Industries say ‘no’ to Tiered Approach
Container glass production under the EU ETS reform post-2020: An asset for Europe’s low-carbon economy
Environmental, social and economic contribution of the Container Glass sector in Europe
Case Study: Absolut Unique
Case Study: Coca-Cola Bottle Light
Case Study: Confidence Through Traceability
Case Study: Encirc Academy – Driving Standards in the Global Container Glass Making Industry
Case Study: Groupe Pochet In’pressive
Case Study: Packaging Solutions with a Twist
Case Study: Stölzle Glass Group 3D Printing
Case Study: The UK’s Lightest Branded Beer Bottle
Case Study: Virtual Glass – 3D Simulated Bottles
Case Study: Reinforced Glass Stems
Case Study: Verallia Easy Open
Energy efficiency and low carbon technologies in container glass
New furnaces are progressively being rebuilt or adapted with innovative low carbon technologies that are much more energy -efficient than in the past. Our industry reduces energy consumption by making use of waste heat recovery technologies, Organic Rankine Cycles technology, oxy-fuel and other symbiotic technologies, which are bringing significant energy savings. While energy savings can have a positive effect there are also downsides.
New energy management systems and technologies deployed throughout the glass plants are helping to increase energy efficiency.
Waste heat recovery from flue gases, when possible, can bring significant energy savings. They can be used in the batch and/or cullet pre-heaters, where the heat of the flue gases is used to warm the raw materials. Not all plants can install this technology as it requires a lot of space. There is also the risk of having more dust build up inside the regenerators, damaging them quicker and reducing their service life.
Another great way to reduce energy is through the Organic Rankine Cycles technology, with innovative refrigerants, that can also generate power from the heat in the flue gases. This technology has however very long pay-back times and is generally only installed in countries with high electricity prices.
Where appropriate, the use of oxy-fuel furnaces, using pure oxygen with natural gas, linked with cullet pre-heating can be economically viable, and can bring some savings as there is no need to heat the nitrogen in the air. However, the production of oxygen requires electricity and needs to be added to the furnace consumption when calculating the net impact (indirect emissions from power generation).
New technologies are also emerging like the combination of oxyfuel furnaces with methane cracking, where natural gas is injected in the regenerators to produce a syngas which can also reduce the energy consumption and the CO2 emissions.
The reduction in energy use in the container glass sector has been on a steep downward trajectory over almost 100 years and is now reaching its thermodynamic limit.