{"schema_version":1,"experiment_id":"eoa_inverse_innovation_exp09_archetype_breadth150_20260804","research_id":"eoa_inverse_innovation_exp09_light_prior_art_20260804","cell_id":"circuit_breaker__chemistry_materials","search_lanes":{"direct_problem_and_intervention":{"queries":["semibatch exothermic reactor feed shutoff interlock cooling failure runaway reaction","fed-batch reactor dosing stop resume temperature control exotherm"],"source_ids":["SRC2","SRC3"],"no_result_note":null},"synonyms_and_historical_terms":{"queries":["\"feed must be stopped\" semibatch reactor restart feed temperature","batch reactor safety interlock stop feed cooling loss restart procedure"],"source_ids":["SRC1","SRC2"],"no_result_note":null},"products_practices_and_standards":{"queries":["site:iec.ch IEC 61511 process industry safety instrumented systems official","reactor dosing controller exotherm stop addition resume temperature trend"],"source_ids":["SRC1","SRC3","SRC4"],"no_result_note":null},"component_combination":{"queries":["reactor dosing \"pulse\" thermal response restart feed interlock","patent exothermic reactor feed pulse temperature response dosing control","patent semibatch reactor stop feed restart dosing temperature coolant flow conversion monitoring"],"source_ids":["SRC2","SRC3"],"no_result_note":"No retained source disclosed the complete combination of a latched compound heat-removal-overload trip and an operator-enabled, inventory-bounded reagent pulse whose measured thermal response controls staged reentry. A phrase miss is not treated as novelty evidence."}},"sources":[{"source_id":"SRC1","title":"Reaction / Product testing","publisher":"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 and can cause catastrophic overpressure.","Cooling failure, loss of agitation, reactant addition rate, and reactant temperature are foreseeable batch or semibatch upset variables.","Reaction-hazard testing should define safe limits and the need for independent controls, trips, relief, cooling, quench, inhibition, or containment."]},{"source_id":"SRC2","title":"WO2018206480A1: Method and system for monitoring the operating conditions of a semibatch reactor","publisher":"World Intellectual Property Organization","url":"https://patents.google.com/patent/WO2018206480A1/en","source_type":"OTHER","claims_supported":["The patent monitors reaction, feed, coolant-inlet and coolant-outlet temperatures, reagent and coolant flow, inferred conversion, heat-transfer performance, and maximum synthesis temperature.","It compares multiple calculated indicators with target ranges and can automatically interrupt coreactant feed when dangerous heat-transfer or accumulation conditions are detected.","Its disclosure reports application of the monitoring criterion to an industrial semibatch acrylic-acid polymerization."]},{"source_id":"SRC3","title":"A Theory-Guided Advanced Regulatory Control Synthesis for Cooling-Limited Exothermic Semi-Batch Reactors","publisher":"arXiv","url":"https://arxiv.org/abs/2606.18799","source_type":"PRIMARY_RESEARCH","claims_supported":["The study addresses cooling-limited exothermic semibatch reactors using feedback, selector, override, and valve-position control structures.","It derives a cooling-demand control architecture with near-boundary tuning rules and a structural feed-shutoff property.","The authors evaluate the approach on a reduced benchmark and an industrial-scale polymerization case, but do not disclose the proposed post-trip half-open probe-pulse state."]},{"source_id":"SRC4","title":"IEC 61511-1:2016 — Functional safety: Safety instrumented systems for the process industry sector, Part 1","publisher":"International Electrotechnical Commission","url":"https://webstore.iec.ch/en/publication/24241","source_type":"OFFICIAL_STANDARD","claims_supported":["IEC 61511-1 specifies requirements for the specification, design, installation, operation, and maintenance of process-industry safety instrumented systems.","A feed-isolation function credited with achieving or maintaining a safe reactor state requires lifecycle-controlled, site-specific treatment rather than deployment as ordinary unreviewed control logic."]}],"problem_evidence":{"status":"SUPPORTED","finding":"The problem is directly visible. Official guidance identifies heat generation exceeding heat removal, cooling failure, agitation loss, and addition rate as semibatch runaway factors. The patent and primary research independently treat feed rate, reactant accumulation, cooling demand, and heat-transfer degradation as monitored or controlled variables and include feed interruption or shutoff behavior.","source_ids":["SRC1","SRC2","SRC3"]},"closest_prior_art":[{"name":"WO2018206480A1 semibatch-reactor monitoring and automatic feed interruption","source_ids":["SRC2"],"overlap":"This is the closest single source. It uses a compound set of reactor, feed, and coolant measurements to infer conversion, heat-transfer degradation, accumulation, and maximum synthesis temperature, then triggers coreactant-feed interruption or other emergency action.","remaining_difference":"The opened disclosure does not describe hysteretic reset with a dwell period or an operator-enabled half-open state admitting one bounded pulse and using its incremental thermal response to govern staged reentry."},{"name":"Cooling-demand advanced regulatory control with structural feed shutoff","source_ids":["SRC3"],"overlap":"It addresses the same cooling-limited semibatch setting, regulates feed against virtual cooling demand and active constraints, uses bounded feed behavior, and provides a structural zero-feed condition near overload.","remaining_difference":"It is continuous regulatory control rather than a latched circuit-breaker state machine and does not disclose post-trip probe-pulse recovery."},{"name":"IEC 61511 safety-instrumented-function lifecycle","source_ids":["SRC4"],"overlap":"It supplies the established governance framework for a sensor-to-final-element function intended to achieve or maintain a safe process state, encompassing specification, validation, operation, and maintenance.","remaining_difference":"It does not specify this reaction-monitoring algorithm or pulse-based reentry mechanism; it instead constrains how any safety-credited implementation would have to be engineered and authorized."}],"prior_art_disposition":"ADJACENT_PRIOR_ART","contrastive_claim_remaining":"Holding compound sensing and fail-closed feed isolation constant, an operator-enabled transition that admits only one preauthorized reagent pulse and evaluates its incremental temperature-rise, pressure, and cooling-demand response before further feed will identify inadequate recovered heat-removal margin and prevent more unsafe full-feed resumptions than a direct manual or timer-based reset, without increasing admitted inventory beyond the authorized recovery bound or delaying mandatory abort, quench, relief, or evacuation actions.","contrastive_claim_falsifier":"The claim is falsified if closer prior art discloses this same response-governed probe-pulse reentry as established practice, or if validated offline replay shows no reduction in unsafe resumptions, delayed heat release makes an apparently acceptable pulse misleading, repeated pulses accumulate excessive reagent, the pulse obscures an abort condition, or the same safety-state performance is achieved by the comparator without the transitional state.","gates":{"adequate_source_search":{"status":"PASS","rationale":"The bounded search covered direct terminology, fed-batch and dosing synonyms, older feed-interruption language, official hazard practice, an international functional-safety standard, primary control research, patents, and combinations involving restart pulses and thermal response. Exactly four opened sources from four publishers were retained.","source_ids":["SRC1","SRC2","SRC3","SRC4"]},"supported_problem":{"status":"PASS","rationale":"Official guidance, a closely related patent, and primary research support the existence of cooling-limited semibatch runaway risk and the relevance of controlling or interrupting reagent addition.","source_ids":["SRC1","SRC2","SRC3"]},"distinct_testable_claim":{"status":"PASS","rationale":"Compound monitoring, feed interruption, cooling-demand control, and bounded feed control are prior art, but the retained sources leave a specific testable distinction: response-governed reentry through a single inventory-bounded pulse rather than immediate resumption after reset.","source_ids":["SRC2","SRC3"]},"bounded_next_test":{"status":"PASS","rationale":"For one approved reaction model, archived traces and hardware-in-the-loop simulated pump and valve behavior can compare the proposal against an otherwise identical compound feed trip with direct reset. A fixed scenario matrix can measure post-warning inventory, peaks, unsafe reopenings, delayed-exotherm failures, false trips, state oscillation, and pulse-envelope violations without reactive material or plant modification.","source_ids":["SRC1","SRC2","SRC3","SRC4"]},"no_obvious_safety_or_authority_stop":{"status":"PASS","rationale":"No obvious stop applies to the proposed non-reactive offline replay. IEC 61511 and HSE guidance do, however, preclude treating simulation success as deployment authority. Live pulse testing or safety credit would require site process-safety approval, reaction-hazard evidence, lifecycle validation, and preservation of independent trips, relief, quench, containment, and emergency actions.","source_ids":["SRC1","SRC4"]}},"screen_survival":true,"world_novelty_boundary":"This bounded public-web screen found substantial adjacent art for compound semibatch monitoring, automatic feed interruption, cooling-demand feedback, bounded feed control, and functional-safety governance, but no opened source matching the full half-open probe-and-response reentry combination. It cannot establish world novelty, patentability, freedom to operate, market size, prevalence, expert acceptance, safety integrity, or realized value; patent families, non-indexed plant practices, paywalled literature and standards text, vendor manuals, and site-specific control implementations were not exhaustively searched."}