Turn the process basis into documents that project teams can review and use.
Classical process engineering requires consistency across design cases, balances, drawings, equipment, utilities, controls, safeguards, and vendor information. Gaps or contradictions between those documents create rework and propagate risk into later disciplines.
ONB develops and updates stage-appropriate process design deliverables for feasibility, FEL, pilot, demonstration, vendor-package, and multidisciplinary project environments.
What is the agreed design basis?
Define feed and product specifications, operating cases, battery limits, codes, assumptions, utilities, and project constraints.
Are the calculations and drawings consistent?
Reconcile design cases, mass and energy balances, equipment duties, stream data, utilities, and drawing information.
What must be specified for equipment and vendors?
Convert process intent into sizing calculations, equipment lists, datasheets, utility requirements, and technical bid information.
What remains open for later disciplines?
Identify interfaces, hold points, data gaps, discipline inputs, vendor data, and review actions required before design advances.
Basis of Design and process descriptions
Design cases, feed/product specifications, battery limits, codes and standards, assumptions, operating philosophy, and process narrative.
Mass and energy balances
Normal, minimum, maximum, startup, shutdown, and other design cases with traceable stream and utility data.
PFD and utility-flow development
Process flows, major control functions, equipment duties, stream numbering, utilities, and heat and material integration.
P&ID development and updating
Equipment, piping, valves, instruments, control loops, safeguards, isolation, vents, drains, tie-ins, and review-comment incorporation.
Equipment definition and datasheets
Sizing calculations, equipment lists, preliminary datasheets, materials considerations, nozzle and utility requirements, and vendor data needs.
Controls, safeguards and interfaces
Control philosophy, permissives and interlocks basis, relief and safeguarding inputs, utility summary, tie-ins, and coordination with vendors and other disciplines.
A process package is a controlled system of documents—not a set of disconnected drawings.
ONB maintains alignment among design cases, calculations, stream data, PFDs, P&IDs, equipment, utilities, controls, and open actions. Document maturity and review status are matched to the project stage.