Send a CFB boiler supplier a clear project brief covering the required output, steam or hot-water conditions, fuel properties, operating schedule, emissions requirements, site conditions, and project scope. Include actual fuel test data and identify which values are confirmed, estimated, or still unknown. These details help a supplier assess whether a circulating fluidized bed boiler suits the application and prepare a meaningful technical proposal. If some information is unavailable, state that explicitly rather than substituting an unsupported estimate.
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A CFB boiler’s design depends on how the plant will operate as well as on its nominal capacity. The same fuel name can describe materials with different moisture, ash, particle size, and heating value, so a supplier needs representative fuel data wherever possible. Your brief should distinguish normal operating conditions from minimum, maximum, and future requirements. This gives both parties a clearer basis for discussing performance, equipment configuration, and commercial scope.
Specify whether you need steam, hot water, or another defined thermal duty, and give the required capacity with units. For steam projects, report the required mass flow in tonnes per hour (t/h) or another consistent unit, along with the pressure and temperature at the stated delivery point. For hot-water or process-heating projects, describe the required flow, inlet and outlet temperatures, and duty where known. Identify whether the requested capacity is a normal requirement, a maximum, or a design target.
For example, “8 t/h of steam at 2.0 MPa and 250°C” is a useful format for communicating a preliminary operating point, not a universal recommendation for CFB boiler design. Confirm whether the pressure is gauge or absolute and whether it refers to the boiler outlet or a downstream process connection. Include any required turndown or load-following behavior, but label targets as preliminary if they have not been validated by your process engineer. A supplier can then clarify which assumptions require further review.
Tell the supplier the expected hours of operation per day and days per year, planned shutdowns, start-up frequency, and whether the plant must operate continuously or intermittently. Share a load profile if demand changes by shift, season, or production rate. Identify the minimum stable load you expect, because operation at partial load may affect the proposed configuration and control approach. If the project includes more than one boiler, explain the intended duty and standby arrangement.
List every fuel the boiler may burn, including primary fuel, supplementary fuel, and any proposed blends. For each, provide an analysis from a representative sample, the sampling date, and the basis used for reported values, such as as-received or dry basis. Useful properties include moisture, ash, volatile matter, fixed carbon, sulfur, chlorine, heating value, and particle-size distribution. If values vary by supplier, season, or batch, provide the expected range rather than presenting one sample as the full picture.
Include the expected fuel consumption or available supply where known, and explain how the fuel will be received, stored, prepared, and conveyed. Note any concerns such as high moisture, abrasive ash, variable particle size, or limited storage space. Do not assume that a boiler can use an alternative fuel simply because it is combustible; ask the supplier to review the actual analysis and operating conditions. This can help identify fuel-handling and combustion questions early.
State the applicable emissions limits and the jurisdiction or permit basis for the project. Provide the regulated pollutants and units where available, along with whether limits apply at a specified reference oxygen level, temperature, pressure, or dry-gas basis. Include any required monitoring, reporting, or testing obligations that are already defined by the project. If the permitting process is ongoing, mark requirements as provisional and identify the authority or consultant responsible for confirmation.
Describe how bottom ash and fly ash must be collected, stored, transported, or reused, and note any site restrictions on dust, noise, wastewater, or residue disposal. The fuel’s ash characteristics and the plant’s handling arrangements can affect equipment selection and interfaces. Ask the supplier to state which emissions-control and ash-handling equipment is included in the proposal and which items are excluded. This avoids treating a boiler package as though it automatically covers the complete environmental system.
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Provide the site location, ambient conditions, elevation if known, available plot area, building or height restrictions, and relevant access limitations. Share layout drawings or equipment envelopes if available, and identify any constraints on transport routes or lifting. List available utilities and their characteristics, including electrical supply, instrument air, water, fuel-handling services, and drainage. Make clear which values are confirmed and which need site verification.
Describe the existing plant interfaces, such as steam headers, feedwater systems, electrical distribution, control systems, and fuel or ash conveyors. Identify the battery limits you expect for the supplier’s scope and any equipment that will be provided by others. If the boiler is a replacement project, include information about the existing installation that may affect tie-ins or removal. A marked-up process flow diagram, site plan, or preliminary equipment layout can make the review more efficient.
Tell the supplier whether you are seeking a boiler island, a broader process package, or support for an existing plant. List equipment and services you expect to be included, such as fuel and ash systems, emissions controls, instrumentation, controls, erection supervision, commissioning assistance, training, and documentation. Ask the supplier to identify exclusions, interfaces, and assumptions in the quotation. Scope clarity is particularly important when multiple contractors divide responsibility across the project.
Provide the target date for technical proposals, expected award timing, required delivery window, and planned installation or commissioning period. State whether the project has a budget range or a required quotation format, if appropriate. Include the expected project stage, such as feasibility, budgetary estimate, or final procurement, because the level of design detail may differ. Request a list of outstanding information the supplier needs to develop the next proposal revision.
| Information | Useful detail to provide |
|---|---|
| Process demand | Capacity, delivery conditions, normal and peak load, and operating profile |
| Fuel | Analysis, sampling basis and date, variability, particle size, and expected supply |
| Environmental requirements | Applicable limits, units, reference conditions, monitoring, and ash disposition |
| Site and interfaces | Location, layout, utilities, access, tie-ins, and battery limits |
| Commercial scope | Included equipment and services, exclusions, schedule, and proposal stage |
A fuel description such as “biomass” or “coal” is not enough to support a detailed review without analysis and supply information. Capacity without delivery pressure and temperature may also leave the supplier unable to understand the actual process requirement. Another common gap is stating an emissions target without its units or reference conditions. When a value is unknown, mark it as pending and give the person or project milestone responsible for confirming it.
Avoid mixing confirmed data with assumptions in the same table without labeling them. State the source and date of key fuel and process information, and identify any expected changes in fuel or output over the project’s life. If your figures are preliminary, say so and ask the supplier to list the assumptions used for its response. This makes revisions easier to track and reduces the risk of comparing proposals based on different premises.
To contact a CFB boiler supplier effectively, send the required output and operating conditions, representative fuel data, emissions and ash requirements, site and utility information, interfaces, scope expectations, and project schedule. Use consistent units, distinguish normal conditions from maximum requirements, and label each value as confirmed, estimated, or pending. Attach supporting documents such as fuel analyses, process diagrams, site plans, and preliminary load profiles when available. Together, these details give the supplier a practical basis for identifying technical questions and preparing a relevant proposal.
At Genjux, we recommend beginning with a concise project brief and then confirming open technical points through a structured review. Send the information you have, identify what remains uncertain, and ask us to specify any additional data needed for the next proposal stage. This creates a clearer starting point for evaluating CFB boiler configuration, scope, and project fit.
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