exported
equivalent
dehydrator
IRI:
http://www.inf.ufrgs.br/ontologies/copi#Dehydrator
Generated on 2026-04-13
Natural Language Definition
EN
A dehydrator is a separator that bears the designed function of removing water and water vapor from process streams.
PT-BR
Um desidratador é um separador que possui a função projetada de remover água e vapor de água de correntes de processo.
Formal Axioms
Semi-formal (Aristotelian)
Every dehydrator is a separator that has the function of dehydration.
First-Order Logic Theory
Loading…
▸ Stored override
∀x (Dehydrator(x) ↔ Separator(x) ∧ ∃f (DehydrationFunction(f) ∧ bearerOf(x,f)))
OWL 2 / Turtle
@prefix copi: <https://www.inf.ufrgs.br/ontologies/copi/> .
@prefix : <https://www.inf.ufrgs.br/ontologies/copi/> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix bfo: <http://purl.obolibrary.org/obo/> .
@prefix iof-core: <https://spec.industrialontologies.org/ontology/construct/> .
@prefix iof-av: <https://spec.industrialontologies.org/ontology/annotation/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix qudt: <http://qudt.org/schema/qudt/> .
@prefix dcterms: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix apv: <http://inf.ufrgs.br/ontologies/apv#> .
### COPI — Core Ontology for Petroleum Installations
### Class module: Dehydrator
<https://www.inf.ufrgs.br/ontologies/copi>
rdf:type owl:Ontology ;
dcterms:title "Core Ontology for Petroleum Installations (COPI)"@en ;
dcterms:title "Ontologia Core para Instalações de Petróleo (COPI)"@pt-br ;
dcterms:description "BFO/IOF-Core conformant ontology of equipment classes for petroleum production plants, developed using the five-step RDL enrichment method."@en ;
skos:scopeNote "Material artifacts (bfo:material_entity) that (i) are part of a petroleum production plant, and (ii) bear at least one function whose realization involves the transport (e.g. production and injection), processing (separation and other processes), control, monitoring, measurement, containment or offloading of material or energy."@en ;
skos:scopeNote "Artefatos materiais (bfo:material_entity) que (i) fazem parte de uma planta de produção de petróleo, e (ii) possuem ao menos uma função cuja realização envolve o transporte (p. ex. produção e injeção), processamento (separação e outros processos), controle, monitoramento, medição, contenção ou escoamento de material ou energia."@pt-br ;
skos:scopeNote "COPI provides high-level equipment categories defined by function to demonstrate the defined-class mechanism. Equipment subtypes are annotated with references to CFIHOS and PCA RDL terms. COPI is not a reference data library; organizations should use CFIHOS, PCA RDL, or ISO 14224 for comprehensive equipment classification."@en ;
skos:scopeNote "COPI fornece categorias de alto nível de equipamentos definidas por função para demonstrar o mecanismo de classe definida. Os subtipos de equipamentos são anotados com referências aos termos do CFIHOS e do PCA RDL. COPI não é uma biblioteca de dados de referência; organizações devem utilizar o CFIHOS, o PCA RDL ou a ISO 14224 para classificação abrangente de equipamentos."@pt-br ;
owl:versionInfo "1.1.0" ;
owl:imports <https://spec.industrialontologies.org/ontology/core/Core/> ;
owl:imports <http://purl.obolibrary.org/obo/bfo/2020/bfo.owl> ;
dcterms:creator "Nicolau Oyhenard dos Santos"@en ;
dcterms:contributor "Cauã Antunes" ;
dcterms:contributor "Haroldo Rojas" ;
dcterms:contributor "Rafael Petry" ;
dcterms:contributor "Régis Romeu" ;
dcterms:contributor "Mara Abel" ;
dcterms:isPartOf <https://inf.ufrgs.br/projetos/OntoKG> ;
dcterms:publisher "Universidade Federal do Rio Grande do Sul (UFRGS)"@en ;
dcterms:license <https://creativecommons.org/licenses/by/4.0/> ;
dcterms:created "2026-04-08"^^xsd:date ;
dcterms:modified "2026-10-08"^^xsd:date ;
apv:GlobalMinLanguageCoverage "en pt-br" ;
apv:ClassURIFormationRule "https://www[.]inf[.]ufrgs[.]br/ontologies/copi/(COPI_[0-9]{7}|[A-Z][A-Za-z0-9]*)" ;
apv:ClassMinAnnotationCoverage "rdfs:label https://spec.industrialontologies.org/ontology/annotation/naturalLanguageDefinition" .
iof-av:naturalLanguageDefinition rdf:type owl:AnnotationProperty ;
apv:MinAnnotationLength 20 .
### Identity-giving function
:COPI_0000459 rdf:type owl:Class ; # DehydrationFunction
rdfs:subClassOf iof-core:DesignedFunction ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty bfo:BFO_0000054 ; # realizedIn
owl:allValuesFrom :COPI_0000460 # DehydrationProcess
] ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty bfo:BFO_0000054 ; # realizedIn
owl:someValuesFrom :COPI_0000460 # DehydrationProcess
] ;
rdfs:label "dehydration function"@en ;
rdfs:label "função de desidratação"@pt-br .
### Process type
:COPI_0000460 rdf:type owl:Class ; # DehydrationProcess
rdfs:subClassOf :COPI_0000005 ; # MassTransfer
rdfs:label "dehydration process"@en ;
rdfs:label "processo de desidratação"@pt-br .
:COPI_0000005 rdf:type owl:Class . # MassTransfer
:COPI_0000460 # DehydrationProcess
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasInput ;
owl:someValuesFrom :COPI_0000037 # PortionOfFluid
] ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasSpecifiedOutput ;
owl:someValuesFrom :COPI_0000037 # PortionOfFluid
] ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasSpecifiedOutput ;
owl:someValuesFrom :COPI_0000037 # PortionOfFluid
] .
### Equipment universal: Dehydrator
:COPI_0000243 rdf:type owl:Class ; # Dehydrator
owl:equivalentClass [
rdf:type owl:Class ;
owl:intersectionOf (
:COPI_0000084 # Separator
[
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasFunction ; # Object branch (MaterialArtifact/Assembly/Object/FiatObjectPart)
owl:someValuesFrom :COPI_0000459 # DehydrationFunction
]
)
] ;
rdfs:label "dehydrator"@en ;
rdfs:label "desidratador"@pt-br ;
iof-av:naturalLanguageDefinition "A dehydrator is a separator that bears the designed function of removing water and water vapor from process streams."@en ;
skos:definition "A dehydrator is a separator that bears the designed function of removing water and water vapor from process streams."@en ;
iof-av:naturalLanguageDefinition "Um desidratador é um separador que possui a função projetada de remover água e vapor de água de correntes de processo."@pt-br ;
iof-av:semiFormalNaturalLanguageAxiom "Every dehydrator is a separator that has the function of dehydration."@en ;
iof-av:firstOrderLogicAxiom "∀x (Dehydrator(x) ↔ Separator(x) ∧ ∃f (DehydrationFunction(f) ∧ bearerOf(x,f)))"@en ;
skos:definition "[ISO 15926-4] A <DEHYDRATOR> is a <FunctionalObject> that is capable of <DEHYDRATING>"@en ;
skos:definition "[SLB Glossary] A device used to remove water and water vapors from gas."@en ;
skos:definition "[OnePetro] A treating vessel designed to remove water from a process stream."@en .
# Disjointness: Dehydrator and Heater
[] rdf:type owl:AllDisjointClasses ;
owl:members ( :COPI_0000243 :COPI_0000124 ) . # Dehydrator, Heater
# Disjointness: Dehydrator and Pump
[] rdf:type owl:AllDisjointClasses ;
owl:members ( :COPI_0000243 :COPI_0000072 ) . # Dehydrator, Pump
# Disjointness: Dehydrator and Compressor
[] rdf:type owl:AllDisjointClasses ;
owl:members ( :COPI_0000243 :COPI_0000073 ) . # Dehydrator, Compressor
Axiomatization Decision Log
1
Identity-Giving Function
Function class
DehydrationFunction
⊑ DesignedFunction
Realized in
DehydrationProcess
⊑ MassTransfer
The identity-giving function is the removal of water and water vapor from process streams. This is what makes a dehydrator a dehydrator regardless of the specific mechanism (glycol absorption, solid desiccant beds, etc.). The function realizes a dehydration process that transforms wet streams into dried streams.
2
Genus Determination
Separator
Dehydrators are specialized separators that separate water from other fluid components. The already-enriched 'separator' class with SeparationFunction is the most appropriate genus. Dehydration is a specific type of separation process. No more specific parent like 'treating vessel' exists in our ontology yet. Separator inherits from Assembly as it requires multiple integrated components for the separation process.
3
Necessary Parts
No necessary parts recorded (concept may be primitive at this level).
These parts are universal across all dehydrator types. Specific mechanisms (desiccant beds, glycol contactors, regeneration systems) vary by subtype and should be modeled at the subtype level.
4
Process Participation Signature ⟨I, O, T⟩
Inputs (I)
PortionOfFluid
— contains water or water vapor
Outputs (O)
PortionOfFluid
— reduced water content
PortionOfFluid
— separated water or water-rich stream
Transformation (T)
water removal and concentration change
Dehydrators take in a wet process stream and produce a dried main stream plus a water-rich waste stream. The transformation involves mass transfer of water from the main process stream to either a desiccant medium or a separate water removal stream.
5
Axiom Mode Decision
Necessary + Sufficient
— modelled as a defined class
(≡, EquivalentClass). Automatic classification is
appropriate for this concept.
Disjointness Axioms
Heater
Pump
Compressor
C4: Heater, Pump, Compressor. These equipment types have incompatible process signatures: heaters add thermal energy without separation, pumps/compressors add mechanical energy without separation, while dehydrators perform separation with water removal as the primary transformation.
Cross-Standard Observations
All three sources consistently define dehydrators functionally by their water removal capability. ISO 15926 uses the most formal structure, SLB focuses on gas dehydration applications, and OnePetro uses broader 'process stream' language. The subtypes mentioned (glycol, dry-bed) confirm this is a functional category with multiple implementation mechanisms.
