A VPSA oxygen plant can supply oxygen-enriched or oxygen-fired combustion systems at a glass plant, but the right design depends on furnace demand, burner requirements, operating pattern, and site conditions. Before requesting a quotation, define the required oxygen flow, purity, delivery pressure, and operating hours, then ask suppliers to confirm these parameters against your process. Commercial VPSA systems commonly produce oxygen in the approximate range of 90–95 vol%, but the suitable specification must be confirmed for the intended furnace and combustion equipment. At DOER OXYGEN, we recommend evaluating the complete supply system—not just the generator—against your project data.
This guide is for glass manufacturers, plant engineers, project managers, and procurement teams considering on-site oxygen generation. It is relevant to projects involving a new furnace, burner upgrades, oxygen enrichment, or a review of an existing oxygen supply arrangement. It can also help buyers compare quotations that appear similar but use different assumptions for flow, pressure, purity, and scope of supply. Use it as a framework for discussion with your furnace, burner, and oxygen-system suppliers.
VPSA means vacuum pressure swing adsorption. The system separates oxygen from ambient air using adsorbent beds, valves, and pressure cycling; a vacuum stage supports regeneration of the adsorbent. Product oxygen is collected and supplied to the application, while the operating sequence is managed by controls. Unlike delivered liquid oxygen, a VPSA plant produces oxygen on site, so the project must account for power, installation, maintenance, and suitable backup arrangements.
In glassmaking, oxygen may be used for oxy-fuel combustion or to enrich combustion air, depending on the furnace and process design. The actual oxygen demand is not determined by glass capacity alone: furnace configuration, burner layout, fuel, operating conditions, and the intended level of oxygen use all matter. A system sized from a broad production estimate can therefore be inadequate or unnecessarily large. Base the selection on burner and furnace data wherever possible.
When comparing systems, align the technical basis first. Oxygen purity, flow, outlet pressure, product conditions, and operating availability should be stated consistently in every quotation. For flow, specify the reference conditions used for the stated normal cubic metres per hour; a common reference is 0°C and 101.325 kPa absolute, but suppliers may use different conventions. Confirm the reference temperature and pressure explicitly before comparing Nm³/h figures.
| Specification | What to confirm | Why it matters |
|---|---|---|
| Oxygen flow | Average, peak, turndown, and measurement reference conditions | Prevents sizing around an unclear or non-comparable demand figure |
| Purity | Guaranteed range, measurement method, and operating conditions | Must be compatible with burner and process requirements |
| Delivery pressure | Required pressure at the plant interface and pressure losses downstream | Influences system configuration and any additional compression |
| Power and utilities | Power supply, connected load, cooling or ventilation needs, and site interfaces | Supports realistic operating-cost and installation reviews |
| Scope and service | Included equipment, commissioning responsibilities, spares, and support | Reduces gaps between the plant package and the glass facility |
Collect demand information from the furnace and burner suppliers, including minimum, normal, and peak flow. Record whether oxygen is intended for continuous operation, a specific production stage, or a trial and optimization program. For a plant expected to operate continuously, document the intended schedule across a 24 h/day period and identify planned shutdowns or maintenance windows. If exact demand is not yet available, label estimates clearly and ask suppliers to state their sizing assumptions.
Do not assume that a higher purity is automatically better for every glass project. A commercial VPSA product may fall around 90–95 vol% oxygen, but the required value depends on the combustion equipment and process design. Ask the furnace or burner supplier to state acceptable purity and pressure at the point of use, then have the oxygen-plant supplier confirm whether its proposed package meets those requirements. Also clarify whether the quoted pressure is gauge or absolute and where it is measured.
A VPSA package may include air treatment, adsorption vessels, vacuum equipment, oxygen buffer storage, controls, and product piping within a defined boundary. The exact configuration varies by project, so check what is included and what the buyer must provide. Review foundations, indoor or outdoor installation, ambient conditions, electrical interfaces, ventilation, noise considerations, and access for maintenance. For a glass facility, coordinate the oxygen plant interface with furnace operation and site safety procedures before finalizing the layout.
Goto DOER OXYGEN to know more.
Glass furnaces can have demanding operating schedules, so discuss how the proposed design handles routine maintenance, equipment faults, and changing oxygen demand. Ask whether the supplier recommends buffer storage, standby capacity, or a backup oxygen source, and request the assumptions behind that recommendation. These provisions are project-specific rather than universal requirements. The buyer should assess the consequence of reduced oxygen availability alongside the cost and complexity of backup options.
The price of a VPSA oxygen plant depends on required flow and purity, pressure, equipment configuration, controls, site conditions, and the scope of engineering and service. Installation, electrical work, civil work, oxygen storage, downstream piping, and commissioning may be priced separately. For an accurate comparison, request a line-item scope and identify exclusions rather than relying on a single headline price. Minimum order conditions and delivery schedules are supplier-specific and should be confirmed for the actual project.
Lead time may depend on design approval, component availability, fabrication, inspection, shipping, and site readiness. Ask suppliers to provide a project schedule with the information or approvals they need from your team at each stage. Confirm whether the schedule includes installation support and commissioning, or only equipment delivery. Avoid treating a preliminary estimate as a firm commitment until technical scope and commercial terms are agreed.
Ask suppliers to respond to the same technical data sheet so that their proposals can be compared on a consistent basis. Check whether each offer describes the same operating conditions, battery limits, and acceptance criteria. Request relevant technical documents and a clear list of assumptions, rather than relying on general claims about efficiency or performance. Where a requirement is critical to furnace operation, obtain written confirmation from both the oxygen-system supplier and the process-equipment provider.
One common mistake is sizing the oxygen plant from total glass output without confirming furnace-level oxygen demand. Another is comparing flow figures that use different reference conditions or represent different purity and pressure assumptions. Buyers may also overlook the cost and responsibility for downstream compression, storage, piping, and plant integration. Resolve these points during technical clarification, before commercial bids are treated as equivalent.
A further risk is focusing only on initial equipment price. Power consumption, maintenance access, spare parts, service response, and backup planning affect the ownership decision, but their impact depends on local operating conditions and contract scope. Ask each supplier to identify the data behind any operating-cost estimate and distinguish guaranteed values from assumptions. This makes the evaluation more transparent without relying on unsupported savings claims.
A VPSA oxygen plant can be a suitable on-site supply option for glass production when its output matches the furnace’s required flow, purity, pressure, and operating schedule. The buyer’s first task is to obtain reliable demand and interface data, then compare suppliers against the same technical and commercial scope. Treat the approximate 90–95 vol% VPSA purity range as a general reference, not a substitute for burner-specific approval. Include the complete installation boundary, maintenance plan, and backup strategy in the decision.
To move forward, prepare a project brief with furnace and burner requirements, oxygen demand by operating condition, site utilities, target delivery pressure, and expected schedule. Share it with qualified suppliers and request a proposal that states guarantees, assumptions, exclusions, and service responsibilities. DOER OXYGEN can review your project requirements and discuss a VPSA oxygen plant configuration for your glass facility. Contact our team with your process data to begin a technical and commercial assessment.
Want more information on VPSA Oxygen Plant For Glass Industry? Feel free to contact us.