La contaminazione nei processi petrolchimici può costare milioni di dollari in attrezzature danneggiate, scarsa qualità del prodotto o causare esplosioni potenzialmente fatali. Gli operatori devono controllare i livelli di contaminanti tipici o altre impurità come umidità, ossigeno, idrogeno e biossido di carbonio per garantire la sicurezza, proteggere le attrezzature e massimizzare la qualità del loro prodotto finale.
I clienti PST sono in diretto contatto con noi attraverso la nostra rete di assistenza e vendita che vanta esperti con eccellenti competenze tecniche. I nostri prodotti sono progettati e realizzati appositamente per le esigenze dell'industria petrolchimica, sia standard che su specifica e siamo quindi in grado di fornire pacchetti completi e personalizzati.
Offriamo attrezzature di misura per il monitoraggio continuo di umidità, ossigeno, idrogeno o altre impurità del gas. I prodotti variano da trasmettitori di processo di piccolo ingombro, analizzatori portatili leggeri per controlli a campione o trasmettitori per installazione diretta. Le tracce di impurità vengono misurate con i nostri più recenti gascromatografi con tecnologia PED - Plasma Emission Detection o analizzatori online.
| Applicazione/Servizio | Scopo della misurazione | Parametro/Intervallo di misura | Gas misurato/Gas di fondo | Prodotto raccomandato |
|---|---|---|---|---|
| Molecular sieve drying system | To prevent the formation of hydrates and ice compounds which could block pipes and/or damage equipment | Moisture in liquid (ppmW) or gas (ppwV) depending on process sample point and user preference. <5ppmV in gas, <1pppmW in liquid |
Cracked petrochemical feedstock (typically naphtha and natural gas) | Liquidew I.S. Promet EExd Promet I.S. QMA601 |
| Furnace and distillation columns | Ensure optimal cracking process, CO, CO2, H2 reduce the catalytic effect of the reactor and increase downtimes Measure Ethylene/Propylene end quality (incl. air gases removal induced with steam) |
Trace impurities (H2, O2, N2, CH4, CO, CO2) <10ppmV |
Cracked petrochemical feedstock (typically naphtha and natural gas) | MultiDetek 2 EX MultiDetek 2 LDetek Accessories |
| Applicazione/Servizio | Scopo della misurazione | Parametro/Intervallo di misura | Gas misurato/Gas di fondo | Prodotto raccomandato |
|---|---|---|---|---|
| Polyethylene, Polypropylene production: Measuring moisture to protect catalyst and ensure feedstock purity. | Ensure product quality - Physical properties of polymer (moisture reacts with catalytic sites & interferes with polymerization) | Moisture in Liquid (ppmW) and/or gas (ppmV) <5ppmV ingas, <1ppmW in liquid |
Ethylene, propylene, solvent (hexane) | QMA401 Promet I.S. Promet EExd Liquidew I.S. |
| Polyethylene, Polypropylene production: Measuring oxygen to protect catalyst and insure feedstock | Prevent contamination with O2 which can spoil the process and affect product quality | 50ppb to 10 ppm Oxygen | Ethylene, propylene, N2 Blanket | GPR 18 MS GPR-18 ATEX GPR-1200 Minox-I |
| Polyethylene, Polypropylene production: Monitoring levels of impurities to protect catalyst and maintain feedstock purity | Ensure good quality of the final product | Monitoring for typical impurities eg permanent gases (hydrogen, oxygen, nitrogen, and carbon monoxide) and moisture. <10ppmV |
Ethylene, propylene | HyDetek
MultiDetek 2 MultiDetek 2 Ex Accessories |
| Polymerization: Monitor oxygen purity used for polymer production | Enable production cost savings e.g. switching feedstocks to less expensive alkane, reduce explosion hazards | % Oxygen 100% O2 |
Oxygen | Michell XTP601 |
| Applicazione/Servizio | Scopo della misurazione | Parametro/Intervallo di misura | Gas misurato/Gas di fondo | Prodotto raccomandato |
|---|---|---|---|---|
| Syngas: Steam methane reforming (SMR) | Catalyst protection, process efficiency and to ensure good quality of the final product | Trace impurities <10ppmV | Hydrogen rich syngas (H to CO ratio of 3) | HyDetek MultiDetek 2 MultiDetek 2 Ex Accessories |
| Syngas CO2 (or dry) reforming | Process efficiency, ensuring good quality of the final product | Trace impurities <10ppmV | Syngas (H to CO ratio of 1) | HyDetek MultiDetek 2 MultiDetek 2 Ex Accessories |
| Syngas: Partial oxidation (POX) | Catalyst protection (if catalytic POX), process efficiency, ensuring good quality of the final product | Trace impurities <10ppmV | Syngas (H to CO ratio of 2) | HyDetek MultiDetek 2 MultiDetek 2 Ex Accessories |
| All gasification processes | Safety | O2 0 to 5% or 0 to 25% |
Syngas | Minox-I GPR-28 |
| Applicazione/Servizio | Scopo della misurazione | Parametro/Intervallo di misura | Gas misurato/Gas di fondo | Prodotto raccomandato |
|---|---|---|---|---|
| Monitor moisture in semi-regenerative catalytic reforming (SRR) and continuous catalyst regeneration (CCR) | Catalyst protection, process efficiency, avoid coking in catalyst bed | Moisture, ppmV 10 to 25 ppmV (up to 1,000 ppmV during regeneration) |
Typically 75% H2, 25% C1- C8 Hydrocarbon Gas (potentially with HC Liquid) |
QMA601 (Asymmetric cycle version) OptiPEAK TDL600 (with special reformer gas settings and calibration) Promet EEXd Promet I.S. (special purge/isolate sampling system) |
| Reforming: Measure trace impurities in semi-regenerative catalytic reforming (SRR) and continuous catalyst regeneration (CCR) | Catalyst protection, process efficiency, avoid coking in catalyst bed | Trace impurities Low ppmV |
Typically 75% H2, 25% C1-C8 Hydrocarbon Gas (potentially with HC liquid) |
MultiDetek 2 Accessories |
| Reforming: Measure hydrogen level in semi-regenerative catalytic reforming (SRR) and continuous catalyst regeneration (CCR) | Catalyst protection, process efficiency, avoid coking in catalyst bed | % H2 0-100%, 50-100% H2 |
Typically 75% H2, 25% C1-C8 Hydrocarbon Gas (potentially with HC liquid) | XTC601 |
| Applicazione/Servizio | Scopo della misurazione | Parametro/Intervallo di misura | Gas misurato/Gas di fondo | Prodotto raccomandato |
|---|---|---|---|---|
| Aromatic HCs: Moisture in liquid mesurement in BTX Fractionation from Naptha Reformate | Ensure Quality of raw material feeding downstream processes | Moisture in liquid, ppmW 0-100ppmW normal <1ppmW |
C6, C7, C8 aromatic HC (Benzene, toluene and xylene) liquids | Michell Liquidew I.S. Michell Easidew PRO XP LQ |
| Applicazione/Servizio | Scopo della misurazione | Parametro/Intervallo di misura | Gas misurato/Gas di fondo | Prodotto raccomandato |
|---|---|---|---|---|
| Isomerization: Naptha dehydration - Monitor moisture in molecular seive | Catalyst protection | Moisture in liquid, ppmW 0-100ppmW, normal <1ppmW |
C5-C6 HC Liquid | Michell Liquidew I.S. Michell Easidew PRO XP LQ |
| Applicazione/Servizio | Scopo della misurazione | Parametro/Intervallo di misura | Gas misurato/Gas di fondo | Prodotto raccomandato |
|---|---|---|---|---|
| Sulfur recovery: Monitor Oxygen purity in sulfur recovery unit | Reduce SO2 emissions and enable use of heavier crude Prevent poisoning of catalyst with H2S |
Oxygen purity 30%-100% O2 |
Natural gas and refined petroleum products | Michell XTP601 |
| Applicazione/Servizio | Scopo della misurazione | Parametro/Intervallo di misura | Gas misurato/Gas di fondo | Prodotto raccomandato |
|---|---|---|---|---|
| Hydrosulfurization (HDS): Measure impurities levels during sulfur removal | Reduce SO2 emissions and enable use of heavier crude Prevent poisoning of catalyst with H2S |
Trace impurities (H2S, COS) <10 ppmv |
Natural gas and refined petroleum products | LDetek MultiDetek 2 EX Accessories GPR-7500/7100 |
| Applicazione/Servizio | Scopo della misurazione | Parametro/Intervallo di misura | Gas misurato/Gas di fondo | Prodotto raccomandato |
|---|---|---|---|---|
| Synthetic Rubber Plant: Monitor moisture in feed liquids to co-polymerization | Ensure product quality, physical properties of rubber | Moisture in liquid, ppmW 0-100 ppmW, normal <1 ppmW |
1,3-Butadiene, ethylbenzene and styrene liquids | Michell Liquidew I.S. |
| Applicazione/Servizio | Scopo della misurazione | Parametro/Intervallo di misura | Gas misurato/Gas di fondo | Prodotto raccomandato |
|---|---|---|---|---|
| Confined spaces (e.g. storage tanks, reaction vessels) | Monitoring ambient oxygen levels to prevent risk of asphyxiation for workers performing routine maintenance | Oxygen 0-25% O2 |
Air | OxyTx FGD10 |
| Applicazione/Servizio | Scopo della misurazione | Parametro/Intervallo di misura | Gas misurato/Gas di fondo | Prodotto raccomandato |
|---|---|---|---|---|
| Monitor oxygen levels in blanket chemicals and refined feedstocks | Ensure safety during storage or transport by land or sea | Trace & % O2 0-10 ppmv, 0-5%, 0-25% O2 |
N2 | GPR-18 ATEX GPR-1800 Minox-I XTP601 GPR-1200 for spot checks |
| Applicazione/Servizio | Scopo della misurazione | Parametro/Intervallo di misura | Gas misurato/Gas di fondo | Prodotto raccomandato |
|---|---|---|---|---|
| Measurement of oxygen levels in pipelines containing natural gas and olefin feedstocks | Detects oxygen leaks and avoids a potentially explosive atmosphere | Trace O2 <5 ppm O2 |
Ethylene, propylene, butadiene, natural gas | GPR-18 ATEX
Minox-I GPR-1200 for spot checks |