Acatian Blog

Technical articles for process modelling and plant decisions.

Methods, worked examples and validation questions for chemical, biotechnology and food process engineering, manufacturing, facility design, economics and environmental assessment.

Acatian EngineeringUpdated 15 October 2026101 open technical publications

Every article connects engineering equations to evidence requirements, model limits and a practical decision.

15 October 2026

Five plausible Acatian use cases for Carlsberg Group, Emerson and Roche.

Independent, hypothetical studies use only public first-party information. They do not claim a customer relationship, actual Acatian use, access to non-public data or a model of any real plant.

New · brewing and beveragesCarlsberg Group: five process-modelling use casesBrewing routes, scale-up, brewery scheduling, TEA/LCA and change evidence.New · process automationEmerson: five process-modelling use casesProcess concepts, equipment fit, project scheduling, lifecycle scenarios and validation evidence.New · pharmaceutical manufacturingRoche: five process-modelling use casesPharmaceutical routes, scale-up, manufacturing campaigns, TEA/LCA and transfer evidence.

14 October 2026

Five plausible Acatian use cases for HEINEKEN, Endress+Hauser and Pfizer.

Independent, hypothetical studies use only public first-party information. They do not claim a customer relationship, actual Acatian use, access to non-public data or a model of any real plant.

New · brewing and beveragesHEINEKEN: five process-modelling use casesBrewing routes, scale-up, brewery scheduling, TEA/LCA and change evidence.New · process instrumentationEndress+Hauser: five process-modelling use casesInstrumentation concepts, equipment fit, project scheduling, lifecycle scenarios and validation evidence.New · pharmaceutical manufacturingPfizer: five process-modelling use casesPharmaceutical routes, scale-up, manufacturing campaigns, TEA/LCA and transfer evidence.

13 October 2026

Five plausible Acatian use cases for AB InBev, Krones and Genentech.

Independent, hypothetical studies use only public first-party information. They do not claim a customer relationship, actual Acatian use, access to non-public data or a model of any real plant.

New · brewing and beveragesAB InBev: five process-modelling use casesBrewing routes, scale-up, brewery scheduling, TEA/LCA and change evidence.New · beverage equipment and linesKrones: five process-modelling use casesProcess concepts, equipment fit, line scheduling, lifecycle scenarios and commissioning evidence.New · biopharmaceutical manufacturingGenentech: five process-modelling use casesBiologics routes, scale-up, manufacturing campaigns, TEA/LCA and transfer evidence.

12 October 2026

Five plausible Acatian use cases for Cargill, SPX FLOW / ITT Flow Technologies and FUJIFILM Biotechnologies.

Independent, hypothetical studies use only public first-party information. They do not claim a customer relationship, actual Acatian use, access to non-public data or a model of any real plant.

New · food and agricultureCargill: five process-modelling use casesProduct routes, scale-up, multiproduct processing, TEA/LCA and change evidence.New · process equipment and engineeringSPX FLOW / ITT Flow Technologies: five use casesProcess concepts, equipment fit, line scheduling, lifecycle scenarios and commissioning evidence.New · biopharmaceutical CDMOFUJIFILM Biotechnologies: five use casesDevelopment routes, kojoX scale-up, CDMO campaigns, TEA/LCA and transfer evidence.

11 October 2026

Five plausible Acatian use cases for Unilever, Tetra Pak and Catalent.

Independent, hypothetical studies use only public first-party information. They do not claim a customer relationship, actual Acatian use, access to non-public data or a model of any real plant.

New · consumer products and foodsUnilever: five process-modelling use casesProduct routes, factory scale-up, multiproduct scheduling, TEA/LCA and change evidence.New · food processing and packagingTetra Pak: five process-modelling use casesFood process concepts, equipment fit, line scheduling, lifecycle scenarios and validation evidence.New · pharmaceutical CDMOCatalent: five process-modelling use casesDevelopment routes, technology transfer, facility fit, CDMO campaigns and validation evidence.

10 October 2026

Five plausible Acatian use cases for Ajinomoto, Pall Corporation and WuXi Biologics.

Independent, hypothetical studies use only public first-party information. They do not claim a customer relationship, actual Acatian use, access to non-public data or a model of any real plant.

New · food and bioscienceAjinomoto: five process-modelling use casesFermentation routes, scale-up, multiproduct campaigns, TEA/LCA and change evidence.New · filtration and separationPall Corporation: five process-modelling use casesProcess concepts, filter scale-up, resource scheduling, lifecycle scenarios and qualification evidence.New · biopharmaceutical CRDMOWuXi Biologics: five use casesBiologics architectures, scale-up, global campaigns, TEA/LCA and transfer evidence.

9 October 2026

How do ingredient routes, reactor scale-up and CDMO capacity affect production?

Independent, hypothetical studies use only public first-party information. They do not claim a customer relationship, actual Acatian use, access to non-public data or a model of any real plant.

New · taste and nutritionKerry Group: five process-modelling use casesFormulation routes, biotechnology scale-up, ingredient campaigns, TEA/LCA and change evidence.New · laboratory and bioprocess equipmentEppendorf: five process-modelling use casesLiquid and sample workflows, bioreactor scale-up, resource scheduling and transfer evidence.New · biopharmaceutical CDMOSamsung Biologics: five use casesBiologics architectures, technology transfer, facility fit, CDMO campaigns and validation evidence.

8 October 2026

How do ingredient scale-up, equipment selection and bioprocess campaigns affect production?

Independent, hypothetical studies use only public first-party information. They do not claim a customer relationship, actual Acatian use, access to non-public data or a model of any real plant.

New · taste, fragrance and beautyGivaudan: five process-modelling use casesIngredient routes, biotechnology scale-up, multiproduct scheduling, TEA/LCA and change evidence.New · heat transfer and separationAlfa Laval: five process-modelling use casesProcess concepts, equipment scale-up, hygienic scheduling, lifecycle scenarios and validation evidence.New · bioprocess and CDMOThermo Fisher Scientific: five use casesBioprocess architecture, scale-up, CDMO campaigns, TEA/LCA and technology-transfer evidence.

7 October 2026

Which scale-up, facility-fit and campaign assumptions need testing?

Independent, hypothetical studies use only public first-party information. They do not claim a customer relationship, actual Acatian use, access to non-public data or a model of any real plant.

New · biosolutionsNovonesis: five process-modelling use casesBiosolution design, fermentation scale-up, multiproduct scheduling, TEA/LCA and change evidence.New · bioprocess technologyCytiva: five process-modelling use casesBioprocess architecture, scale-up, facility fit, single-use scheduling and validation evidence.New · biopharmaceutical CDMOBoehringer Ingelheim: five use casesProcess routes, technology transfer, facility fit, CDMO campaigns, TEA/LCA and PPQ evidence.

Recent · 6 October 2026

How do formulation, pilot scale-up and single-use scheduling change a process?

These independent studies use public first-party information and remain hypothetical decision scopes.

Recent · ingredients and nutritiondsm-firmenich: five process-modelling use casesFormulation, pilot scale-up, campaign scheduling, TEA/LCA and governed change evidence.Recent · life scienceMerck KGaA / MilliporeSigma: five use casesBioprocess architecture, scale-up, facility fit, single-use scheduling and qualification evidence.Recent · specialty chemicals and CDMOEvonik: five process-modelling use casesFermentation routes, pilot-to-commercial scale-up, campaigns, TEA/LCA and technology transfer.

Recent · 5 October 2026

How do hygienic scheduling, equipment trains and CDMO capacity affect production?

These independent studies use public first-party information and remain hypothetical decision scopes.

Recent · food and nutritionDanone: five process-modelling use casesProduct design, pilot scale-up, hygienic scheduling, water and packaging scenarios.Recent · bioprocess technologySartorius: five process-modelling use casesProcess intensification, scale-up, equipment trains, connected scheduling and lifecycle value.Recent · pharmaceutical CDMOLonza: five process-modelling use casesRoute selection, predictive scale-up, facility fit, CDMO capacity and sustainable design.

Recent · 4 October 2026

How do line sizing, cleanroom scheduling and site transfer affect facility fit?

These independent studies use public first-party information and remain hypothetical decision scopes.

Recent · food and beverageNestlé: five process-modelling use casesProduct scenarios, campaign scheduling, scale-up, TEA/LCA and facility-fit evidence.Recent · equipment and engineeringGEA: five process-modelling use casesLine sizing, recipe scheduling, pilot-data scale-up, facility fit and test evidence.Recent · pharma packagingGerresheimer: five process-modelling use casesProcess chains, cleanroom scheduling, series scale-up, site transfer and EcoDesign.

3 October 2026

Size clean-steam generation from concurrent SIP phases, not daily averages.

The screening model converts equipment heat-up and hold loads into a five-minute utility schedule, then tests overlap, staggering, capacity margin and validation boundaries.

New · facility calculationClean-steam generator sizingSIP phase loads, peak concurrency, schedule alternatives, condensate and a reproducible capacity ledger.

New this afternoon · 3 October 2026

A public-evidence business case for enzymatic PET recycling.

The study closes PET hydrolysis, reactor inventory, energy-screen and procurement-value boundaries while keeping CARBIOS public evidence separate from synthetic assumptions.

New · business caseEnzymatic PET recycling TEAPublic process evidence, PET mass balance, monomer recovery, uncertainty and a transparent software-value gate.

Recent · 3 October 2026

Two engineering calculations plus twenty recent process-model studies.

These methods separate SIP utility concurrency from average demand and homogenizer motor duty from pass-dependent schedule, energy and disruption response; the recent studies remain available below.

New · calculationHigh-pressure homogenizer sizingFlow, parallel units, motor power, passes, cooling and calibrated disruption.Recent · model studyRecombinant insulin APIContinuous harvest, recovery, chromatography, UF/DF and drying capacity.Recent · model studyMulti-product mAb CDMOCampaigns, WFI, buffers, suites, cleaning, holds and release.Recent · model studymRNA, LNP and fill-finishDrug substance, formulation, sterile filling, QC and cold storage.Recent · model studyEnzyme concentrate vs powderActivity recovery, membranes, drying, utilities and COGS.Recent · model studyBiotech foundry portfolioDBTL experiments, pilot gates, analytics and CMO handoff.Recent · model studyReb M precision fermentationTiter, purification recovery, concentration, cost and carbon.Recent · model studyβ-Lactoglobulin scale-upIllustrative 100 to 20,000 L case with UF/DF and drying.Recent · model studyAcid whey vs high-yield dairyMilk-solids retention, viscosity, filling, CIP and energy.Recent · model studyBrewery water networkCIP, hot-water storage, DAW, cooling and water intensity.Recent · model studyGas-fermentation mass transferCO/CO₂/H₂ transfer, uptake, recycle, purge and power.Recent · model studySAF feedstock and hydrogenPretreatment, deoxygenation, isomerisation and product slate.Recent · model studyFlex-feed steam crackerNaphtha/butane, co-products, steam, inventories and demand.Recent · model studySemi-continuous L-lysinePartial draws, OTR, cooling, evaporation and granulation.Recent · model studySpecialty-ingredient campaignsSKUs, cleaning matrices, shelf life, service and working capital.Recent · model studyMABR/MBBR and biogasNutrients, aeration, sludge, digestion and net energy.Recent · historical model studyKraft lignin and mill energyBlack liquor, recovery boiler, dryer, kiln and power export.Recent · model studyBattery black-mass recyclingElement recovery, reagents, water, energy and residues.Recent · model studyCircular lactic acidChemical recycle versus conventional gypsum processing.Recent · model studyDirect-air-capture cyclesAdsorption, heat, power, weather, ageing and net removal.Recent · model studyFermentation scale-up to 1,500 LReplicates, scale gates, DSP, calendars and transfer risk.

Transport + separations

Turn rate-limiting transport into explicit process constraints.

Use time-resolved experiments and component balances to quantify mixing, oxygen transfer, membrane demand, downstream load and scale-up risk.

New · 29 min publicationDisc-stack centrifuge scale-up calculationQualified Q/(cΣ), matched throughput, harvest time, captured-solids duty and discharge cadence.26 min publicationBioreactor heat transfer calculationPeak heat load, LMTD, UA, area, installed cooling capacity, coolant flow and outage screen.21 min publicationLow-pH viral inactivation hold-time calculationValidated minimum hold, maximum product exposure, timing margins and a reproducible batch clock.22 min publicationSterile filter sizing calculationConstant-pressure Vmax fit, capacity and flow-time area, installed-area check and validation boundary.25 min publicationFed-batch feed rate calculationInteractive exponential-feed profile with biomass, pump, working-volume and oxygen-transfer constraints.24 min publicationProtein A column sizing calculationInteractive DBC, resin volume, column diameter, cycle, buffer and batch-time screen.23 min publicationDiafiltration volume calculationInteractive diavolume calculator, buffer exchange, product loss, membrane area and a reproducible UF/DF dataset.17 min publicationBioreactor mixing time calculationMulti-probe tracer normalization, strict t95, scale-up groups and a reproducible dataset.18 min publicationBioreactor kLa calculationDynamic gassing-in regression, probe response, OTR/OUR margin and a reproducible dataset.16 min guideFed-batch process simulationState balances, feed events, oxygen and heat limits, downstream load and validation.15 min guideCHO cell culture process modelGrowth, viability, mAb productivity, metabolites, scale-up and COGS.14 min guideBioreactor scale-upOTR, mixing, shear, heat removal, geometry and uncertainty.

Facility + operations

Translate the process into manufacturing reality.

Model reusable equipment, rooms, utilities, people, cleaning and customer variants instead of treating annual utilization as a fixed input.

New · 27 min publicationWFI system sizing calculationPoint-of-use demand, generator rate, storage swing, reserve margin and deterministic facility-fit screen.Role guideMSAT process modelling toolsTech transfer, site fit, manufacturing evidence and controlled change.Role guideCDMO process developmentCustomer intake, facility fit, campaigns, costs and delivery risk.Capacity guideFinite-capacity schedulingEquipment states, shared resources, queues, cleaning and campaigns.

03

Validation + reproducibility

Make technical claims independently inspectable.

Reference implementation

AC-REF-MAB-FB-001 publishes versioned inputs, 169 trajectory points, sensitivities, numerical balance closure, acceptance criteria and SHA-256 checksums. It demonstrates reproducible software behavior without claiming customer-specific industrial validation.

Inspect the benchmark

Model validation

Define context of use, independent evidence, acceptance tolerances, residual analysis, uncertainty, extrapolation limits, maturity and technical ownership before calling a model decision-ready.

Read the validation guide

Mass-balance discipline

Track every component, reaction, accumulation term, recycle, purge, sample and loss on one declared basis. Report per-unit residuals so plant-wide closure cannot hide local errors.

Build the mass balance

Software + economics

Evaluate the workflow as carefully as the equations.

Compare tools on an authorized reference case, keep migration controlled and connect technical changes to schedule, cost and environmental consequences.

18 min buyer guideAcatian vs SuperPro Designer vs RoeblingScope, collaboration, automation, scheduling, TEA, LCA and validation evidence.Acatian-published comparisonSuperPro Designer alternativeA current, source-linked comparison with disclosed commercial interest for teams assessing a browser-based engineering workflow.Migration benchmarkControlled SuperPro Designer migrationReconstruct one authorized model, reconcile outputs and expand only after acceptance criteria pass.Economics + impactBioprocess TEA and LCATrace materials, equipment, utilities, labor, waste and sensitivities to one reconciled process basis.Digital engineeringBioprocess digital twinSeparate design, operational and closed-loop claims while keeping data, uncertainty and validation visible.Model definitionBioreactor CFD simulationDefine geometry, mesh, multiphase physics, boundary conditions and experimental validation before interpreting fields.Review checklistBioprocess model readinessCheck balances, kinetics, equipment, scheduling, economics, uncertainty and evidence ownership.Evaluation guideBioprocess simulation softwareCompare balance closure, equipment duty, operating modes, traceability and engineering exports.