{"schema_version":1,"experiment_id":"eoa_inverse_innovation_exp09_archetype_breadth150_20260804","research_id":"eoa_inverse_innovation_exp09_light_prior_art_20260804","cell_id":"constraint_envelope_adjustment__chemistry_materials","search_lanes":{"direct_problem_and_intervention":{"queries":["emulsion polymerization monomer feed rate cooling capacity reactor calorimetry control","semi-batch polymerization feed rate heat removal capacity safety","dynamic safe operating envelope reactor cooling capacity feed rate"],"source_ids":["SRC1","SRC2","SRC4"],"no_result_note":null},"synonyms_and_historical_terms":{"queries":["starved-feed emulsion polymerization calorimetric control monomer feed","semi-batch emulsion polymerization safe maximum heat-removal rate optimal trajectory","controlled-addition polymerization monomer accumulation cooling limit"],"source_ids":["SRC2","SRC4"],"no_result_note":null},"products_practices_and_standards":{"queries":["model predictive control emulsion polymerization cooling capacity monomer dosing","site:hse.gov.uk chemical reaction hazards semi batch feed rate cooling capacity","site:osha.gov process safety management management of change chemical reactor operating limits"],"source_ids":["SRC1","SRC3"],"no_result_note":null},"component_combination":{"queries":["semi-batch reactor feed rate cooling failure reactant temperature worst case","emulsion polymerization online calorimetry conversion monomer feed control","polymerization productivity maximize feed within cooling pressure quality constraints"],"source_ids":["SRC1","SRC2","SRC3","SRC4"],"no_result_note":null}},"sources":[{"source_id":"SRC1","title":"Model predictive control of emulsion polymerization processes","publisher":"Cybernetica AS","url":"https://cybernetica.no/cybe_case/emulsion/","source_type":"FIRST_PARTY_PRODUCT","claims_supported":["A commercial MPC application for semi-batch emulsion polymerization controls temperature, heating and cooling utilities, and monomer and initiator dosing.","It maximizes monomer feed within available-cooling, pressure, quality, and safety constraints.","It uses online parameter adaptation, predictive control, energy balances, changing cooling capacity, fault diagnosis, and historical reproduction of process situations."]},{"source_id":"SRC2","title":"On-line calorimetric control of emulsion polymerization reactors","publisher":"Chemical Engineering Science / Elsevier","url":"https://www.sciencedirect.com/science/article/pii/0009250996001522","source_type":"PRIMARY_RESEARCH","claims_supported":["Reaction calorimetry was experimentally used to monitor and control semi-batch emulsion copolymerization.","Online thermal and material balances estimated conversion and updated monomer-addition rates every 20 seconds.","The authors connected the strategy to polymer-quality control and safe operation by preventing monomer accumulation during inhibition disturbances."]},{"source_id":"SRC3","title":"Reaction / Product testing","publisher":"UK Health and Safety Executive","url":"https://www.hse.gov.uk/comah/sragtech/techmeasreaction.htm","source_type":"OFFICIAL_GUIDANCE","claims_supported":["Thermal runaway begins when reaction heat generation exceeds heat loss, with heat generation dependent on temperature and composition.","Polymerization is among the reaction classes involved in runaway incidents.","Batch and semi-batch hazard assessment should consider cooling failure, reactant-addition rate, reactant temperature, loss of agitation, response time, and protective systems.","Literature and calculations do not replace chemical hazard testing; safe-operation parameters and protective measures must be technically defined."]},{"source_id":"SRC4","title":"Emulsion polymerization: From fundamental mechanisms to process developments","publisher":"Journal of Polymer Science / Wiley","url":"https://onlinelibrary.wiley.com/doi/10.1002/pola.11096","source_type":"SECONDARY_RESEARCH","claims_supported":["Emulsion-polymerization production is limited by reactor heat-removal capacity.","The reviewed optimum equates heat generation to a safe maximum heat-removal rate that retains additional cooling power as a safety margin.","Known open-loop and closed-loop strategies follow heat-removal-constrained optimal trajectories, including approaches using reaction calorimetry."]}],"problem_evidence":{"status":"SUPPORTED","finding":"The core interaction is visible in both official guidance and polymerization literature: runaway can begin when state-dependent heat generation exceeds removal, while addition rate, temperature, composition, cooling condition, and equipment failures interact. Emulsion-polymerization sources also show that feed rate governs cooling demand and can affect monomer accumulation and product properties.","source_ids":["SRC2","SRC3","SRC4"]},"closest_prior_art":[{"name":"Cybernetica CENIT model-predictive control for semi-batch emulsion polymerization","source_ids":["SRC1"],"overlap":"This is a near-direct implementation collision: it adaptively meters monomer, predicts reactor behavior, and maximizes feed subject to changing cooling-capacity, pressure, safety, and quality constraints.","remaining_difference":"The public case description does not explicitly document the proposal's shadow-only introduction, enumerated uncertainty deductions, conservative invalid-state hold, review cadence, or facility-specific management-of-change protocol."},{"name":"Online calorimetric feed control of semi-batch emulsion copolymerization","source_ids":["SRC2"],"overlap":"It uses online heat and material balances and conversion-dependent feed updates to maintain product composition and avoid unsafe monomer accumulation during disturbances.","remaining_difference":"Its reported controller follows composition-oriented feed profiles rather than presenting the rule explicitly as a revisable multivariable permissible-region surface tied to jacket reserve and formal rollback triggers."},{"name":"Heat-removal-constrained optimal trajectories for emulsion polymerization","source_ids":["SRC4"],"overlap":"The review describes maximizing production at a safe heat-removal limit, retaining cooling margin, and using open- or closed-loop control to follow the resulting trajectory.","remaining_difference":"A trajectory is not necessarily a fully specified operating envelope with exception prohibition, uncertain-state hold behavior, blinded retrospective validation, and governance controls."},{"name":"Official reaction-hazard assessment and basis-of-safety practice","source_ids":["SRC3"],"overlap":"The guidance already requires joint consideration of cooling, addition rate, temperature, composition, foreseeable failures, response time, testing, and protective systems.","remaining_difference":"It specifies safety-analysis duties rather than a particular adaptive feed-envelope algorithm."}],"prior_art_disposition":"ESTABLISHED_PRACTICE","contrastive_claim_remaining":"No broad structural novelty remains. A narrower, falsifiable local claim is that, for one specified formulation and pilot reactor, an explicitly uncertainty-discounted envelope with conservative invalid-state holds and shadow-mode governance will classify excursion-precursor versus acceptable historical intervals better than the current independent limits, without materially increasing false exclusions, batch duration, or product-property deviations.","contrastive_claim_falsifier":"The claim fails if blinded replay and authorized calorimetry show no meaningful reduction in false admissions, show unacceptable false exclusions or displaced quality/duration harm, or demonstrate that delayed and uncertain state estimates cannot support the boundary. Its distinctness also fails if the closest deployed MPC already contains materially the same uncertainty margins, invalid-state holds, validation workflow, and governance controls.","gates":{"adequate_source_search":{"status":"PASS","rationale":"The bounded search covered the direct formulation, older starved-feed and controlled-addition terminology, calorimetric control, commercial MPC, heat-removal-constrained operation, and official reaction-safety practice. Four opened sources span four publishers and include primary research, official guidance, and a first-party implementation.","source_ids":["SRC1","SRC2","SRC3","SRC4"]},"supported_problem":{"status":"PASS","rationale":"Official guidance and polymerization research directly support the coupled heat-generation, cooling, feed, temperature, composition, and product-quality problem.","source_ids":["SRC2","SRC3","SRC4"]},"distinct_testable_claim":{"status":"FAIL","rationale":"Although a facility-specific performance claim is testable, the proposed structural distinction is already substantially embodied in published calorimetric control, heat-removal-constrained trajectories, and a commercial adaptive MPC system for semi-batch emulsion polymerization.","source_ids":["SRC1","SRC2","SRC4"]},"bounded_next_test":{"status":"PASS","rationale":"A fixed-window, one-formulation blinded historian replay is bounded and non-interventional; false admissions, false exclusions, precursor separation, batch duration, and product attributes provide predefined outcomes. Any calorimetry must remain separately authorized and within instrument limits.","source_ids":["SRC1","SRC2","SRC3"]},"no_obvious_safety_or_authority_stop":{"status":"PASS","rationale":"Offline shadow analysis does not alter the reactor. Official guidance supports hazard testing before operational reliance, while any live control or limit change remains subject to the facility's hazard review, management of change, existing absolute limits, trips, relief protection, and stop authority.","source_ids":["SRC3"]}},"screen_survival":false,"world_novelty_boundary":"This light, bounded public-web screen establishes neither world novelty nor exhaustive prior art. It cannot determine patentability, freedom to operate, market size, expert acceptance, formulation-wide validity, scale-up safety, or realized operational value; the finding is limited to strong evidence that the proposal's broad control structure is already an established practice, with only implementation-specific validation and governance details potentially remaining."}