LIFE projects technical conference: Coordinating beneficiary: Associated beneficiaries:

Transcription

1 LIFE projects technical conference: REWATCH REWATCH Demostración de un esquema innovador de reutilización de aguas en la industria petroquímica Coordinating beneficiary: Associated beneficiaries:

2 What? Demonstrate/Validate environmentally friendly solutions to reduce the footprint of the petrochemical industry How? Implementation of an on-site innovative wastewater recycling scheme to increase water efficiency in a petrochemical industry Where? Petrochemical complex of DCI in Tarragona When? September 2016 December 2019 Why? Decrease freshwater consumption by the petrochemical/industrial sector

3 Context of the REWATCH project Source: European Environment Agency, 2014

4 Context of the REWATCH project Water usage in the oil and gas industry: Extraction and production of oil and gas Transportation Oil refining and gas processing Electricity generation/end use Source: ExxonMobil Petrochemical industry is a major water user, mainly for cooling purposes, generating in Europe 1750 hm 3 of wastewater per year

5 Context of the REWATCH project Water Exploitation Index (WEI): Summer 34% Winter 5.7% Source: European Environment Agency, 2012

6 Objectives Specific objective Partners responsible Actions Obtain a versatile water recycling scheme to treat different WW streams generated in petrochemical processes Demonstrate the feasibility and promote the implementation of a innovative water reuse scheme in petrochemical industries Disseminate the obtained results and transfer the knowledge acquired regarding the innovative water recycling scheme. Quantify and disseminate the environmental benefits and the economic impact of the innovative water recycling scheme compared to the currently applied water management strategies. Develop a decision support tool to predict the environmental and economic benefits of the new technology. DCI, CTM, VWSI DCI, CTM, VWSI, KWR WssTP and all KWR, CTM, WssTP KWR A.1, B.1, B.2, B.3 A.1, A.2, B.1, B.3, B.4 D B.4, C, D A.1, A.2, B.4

7 Workplan

8 Demonstration site located at Tarragona petrochemical complex

9 Demonstration site located at Tarragona petrochemical complex:

10 Demonstration site located at Tarragona petrochemical complex: Steam production (11%) Process Water (10%) Oily Water (27%) Cooling tower make-up (89%) Intermediate Water (63%) (cooling tower blowdown and instruments and pumps cooling) Source: DCI Tarragona

11 Demonstration site located at Tarragona petrochemical complex: WW Stream Parameter Process Oily Intermediate TOC (mg/l) ~15 COD (mg/l) ~35 BOD 5 (mg/l) 7 6 < LQ Turbidity (NTU) TSS (mg/l) TDS (mg/l) Conductivity (µs/cm) Phosphate (mg/l) Pollution characteristics: High level of total dissolved solids (TDS) Oil and grease Suspended solids (TSS) Dissolved and volatile organic compounds Recalcitrant compounds Heavy metals Dissolved gases and bacteria Additives used in production such as biocides, scale and corrosion inhibitors, and emulsion and reverseemulsion breakers

12 Technology: Steam production (11%) Process Water (10%) Oily Water (27%) Cooling tower make-up (89%) Intermediate Water (63%) (cooling tower blowdown and instruments and pumps cooling) Treatment pilot plant of 5 m 3 /h

13 Technology: Stream wastewater quality Feed water quality specifications Parameter Mixture Boiler Cooling tower makeup TOC (mg/l) 80 <1 <15 COD (mg/l) 300 <20 BOD 5 (mg/l) 2 Turbidity (NTU) 20 TSS (mg/l) 30 <5 TDS (mg/l) 2360 Phosphate (mg/l) 7 Conductivity (µs/cm) not available yet <1 <2000 Silica (mg/l) not available yet <0.1 Iron (mg/l) not available yet <0.2 Cupper (mg/l) not available yet <0.03 Calcium (mg/l) not available yet <350 Sulphates (mg/l) not available yet <300 Recalcitrant and/or toxic compounds not available yet (BTEX, phenols, cresols, glycols, PAH, etc.)

14 Technology Pre-treatment process ACTIFLO Moving bed biofilm reactor (MBBR) Ultrafiltration Reverse osmosis Ion exchange resins

15 Technology CTM1 Parameter/Treatment Pretreatment ACTIFLO + PAC MBBR UF RO IER TOC (mg/l) COD (mg/l) BOD 5 (mg/l) Recalcitrant organic compounds Turbidity (NTU) TSS (mg/l) TDS (mg/l) Conductivity (µs/cm) Phosphate (mg/l) Sulphates (mg/l) Calcium (mg/l) Silica (mg/l) Iron (mg/l) Cupper (mg/l)

16 Diapositiva 15 CTM1 Revisar! FundacióCTM; 04/11/2016

17 Expected outcomes At project level, treat 20,000 m 3 of WW and provide 12,600 m 3 of reclaimed wastewater Key indicator Potential reduction in total water abstraction of European steam crackers (m 3 water/year) Potential decrease in wastewater discharge (m 3 water/year) Reference EU state-of-the-art or EU relevant actual state-of-play at the beginning of the project period Impact 3 or 5 years after the project end at project continuation, replication and/or transfer level Total energy consumption related to the water cycle (kwh /year) Climate change reduction potential (metric tons/year) - 425

18 Thanks for you attention