Decarbonization and performance increase

Oxyservice

Efficient production without interruptions. Get everything out of the way now - with our Oxyservice!

Oxyservice from Linde Gas is designed to ensure that furnaces can continue to operate without interruptions. It is a fast, efficient delivery service that contributes to a longer life for furnaces. It also allows producers to continue production during repairs to regenerators or reclaimers by eliminating the need for a heat recovery system.

Oxyservice is the ideal solution for glass melting furnaces

Objectives

• Infestation/damage of regenerators or recuperators
• Increased load on regenerative or recuperative air preheating systems due to tub travel and raw materials
• Increasing duration of hull voyages
• Fluctuating tonnage requirements and utilization of the glass furnace
• Utilization of the glass furnace by more than 100% due to demand/brand development
• Minimization of downtimes and interruptions
• Optimized design of the glass melting tank

The basic principle of Oxyservice

Oxyservice from Linde combines all the technology needed for the efficient use of oxygen - from delivery to plant operation.

Services

• Engineering in pipeline construction for O2 and natural gas
• Commissioning support

Benefits of Oxy Service

More flexible, more reliable, more economical

Linde's Oxy Service is based on the activities and experience of the past 10 years.

Benefits

• Flexible maintenance of melting capacity with O2 lances or oxy-fuel burners
• Minimization of production losses due to prolonged furnace movements using oxygen during main and intermediate repairs
• Significant reduction in flue gas/volume of the glass container at the same or higher melting capacity and the same or optimized glass quality
• Reduction of the load on the regenerator/recuperator
• Low investment costs
• One-stop solutions - from O2 enrichment to firing the glass melting tank with fully oxygenated fuels

Plant technology

Achieve the best results with customized technology

State-of-the-art plant technology enables optimized production

Available controlled systems

Oxy service systems, O2 control systems

• 1 x 2500 Nm³/h O₂
• 1 x 1000 Nm³/h O₂
• 1 x 500 Nm³/h O₂

Oxyfuel controlled system (pure O2 operation possible)

• 2 x 2 MW natural gas/O₂

Oxy-fuel controlled system

• 2 x 2 MW natural gas/O₂
• 2 x 3 MW natrual gas/O₂

Oxy Service Technology Package - Oxygen Enrichment

Enriching combustion air with oxygen - Less pressure in the furnace, better performance

Furnace operation without Oxy Service

• Cross-fired, regenerative oil/air furnace, container glass
• Tonnage 200 t/day (up to max. 220 t/day)
• Air preheating (before damage to regenerators) approx. 850 °C

Initial situation:

Damage to the horizontal chambers (air preheating at ca. 600-700 °C) and the resulting operation of the furnace led to a greatly increased furnace pressure and reduction of melting capacity by ca. 20% to ca. 165 t/day.

Results with Oxy Service

• Tonnage: 200-205 t/day (approx. 165 t/day + approx. 35 t/day)
• Reduction of the furnace pressure by more than 30
• NOx values of the furnace during O2 maintenance can increase by approx. 5
• Duration: up to 24 months

Oxy Service Technology Package - Oxyfuel Burners

Using oxyfuel burners - lower volume flows, higher performance

Initial situation without Oxy Service with burners

• Regenerative gas/air U-flame furnace, container glass
• Tonnage 220 t/day (max. 230 t/day)
• Air preheating (before damage to regenerators)
  Approx. 1,100-1,200 °C

Problem:

Damage to regeneration chambers, reduction in air preheating and consequent operation of the furnace lead to a reduction in melting capacity of about 20% to about 160-170 t/day.

Results with Oxy Service

• Tonnage: 200-210 t/day (approx. 160-170 t/day + approx. 30-40 t/day)
• Reduction of volume flows by approx. 20
• NOx values of the vessel during O2 maintenance increased by approx. 5
• Project duration: 18 months

Oxy Service Technology Package - All Oxy Fuel Package

All on kerosene. Stable process, improved glass quality

Initial situation without Oxy Service

• Regenerative gas/air U-flame furnace, container glass
• Tonnage 230 tons/day (70 m2 melting surface)

Task

Maintain a melting capacity of 50% of capacity, equivalent to 115 tons/day, in the U-flame furnace while the regenerators are repaired for 4-6 weeks.

Operation of the U-flame furnace with two oxyfuel burners and an O2 lance at the burner port (use of Oxy Service).

Media operation (one burner port in operation, no changeover):

• COROX®-II (type 3MW) Natural gas 330 Nm³/h Oxygen 380 Nm³/h
• COROX®-II (type 3MW) Natural gas 330 Nm³/h Oxygen 380 Nm³/h0
• O2 lance Oxygen approx. 400 Nm3/h
• No combustion air

Results with Oxy Service

Process stable maintenance of tonnage of 110-115 tons/day of glass melting tank in fully oxygenated condition for 5-6 weeks with improved glass quality.