Iron ore tailings thickened slurry transfer pipeline is a slope pipeline of 18” dia of 7 meters length (Pump Suction), 14” dia of 33 meters length (Pump Discharge) and 10” dia of 1210 meters transporting Iron ore tailings thickened slurry.
The purpose of this study is,
- To develop steady state model and perform Hydraulic study of Iron ore tailings thickened slurry transfer pipeline.
- Perform Transient Analysis and estimation of surge pressure for Export Pipelines due to sudden pump trip and closure of suction/discharge/pipeline valves.
- To provide surge mitigation measures, when the surge pressure exceeds the maximum allowable surge pressure.
Indian Oil Corporation Limited has planned to review Hydrocarbon Vapour detection for fuel handling areas in Asanur terminal, Tamil Nadu. Asanur terminal receives products in Tank Wagon & Tank truck and dispatches the products to Tanker truck in Bays.
This terminal consists of the following,
- Tank farms,
- Underground tanks,
- Pumps and their associated pipelines
The Scope of Work for the proposed Study includes the following
- Fuel handling areas in the Asanur terminal is covered for the Fire and Gas Mapping Study.
- The mapping study of gas detector (fire and toxic) is required, the quantities and location of the detectors to be re-evaluated based on the plot plan.
- Proposing new fire and gas detection arrangements.
The study carried out pressure surge analysis for 8” and 5 km long slurry export lines in order to evaluate the maximum transient pressure surges in various foreseeable mal-operations.
Iron ore tailings thickened slurry transfer pipeline is a slope pipeline of 12” dia of 6 meters length (Pump Suction), 10” dia of 32.1 meters length (Pump Discharge) and 8” dia of 5063 Meters transporting Iron ore tailings thickened slurry.
The purpose of this study is,
- To develop steady state model and perform Hydraulic study of Iron ore tailings thickened slurry transfer pipeline.
- Perform Transient Analysis and estimation of surge pressure for Export Pipelines due to sudden pump trip and closure of suction/discharge/pipeline valves.
- To provide surge mitigation measures, when the surge pressure exceeds the maximum allowable surge pressure.
Indian Oil Private Limited has awarded iFluids Engineering to carry out Hazard and Operability (HAZOP) study for the existing LNG Terminal at Ennore
The broad scope of this project facilities are LNG Storage Tanks and associated facilities such as LNG unloading system, Recondenser system, Metering system, Fuel gas/ Natural gas system, Relief and drain system and Road tankers/truck loading
The HAZOP method examines the process/utility system and related connections, involving various specialists to brainstorm potential deviations from the design's intended purpose and identify their causes and consequences.
SIL study determines the possible hazards pertaining to individuals, surroundings, and resources as a result of the malfunction of safety-related system and corresponding facilities within the industry when they are supposed to be functional.
SIL study establishes the fundamental criteria for the functioning of all safety-related instrumented systems to minimize such risks to the lowest feasible level.
At the Depot Operational activities carried out are receipt, storage and distribution of petroleum products like Motor Spirit (Petrol), High Speed Diesel (HSD), Superior Kerosene Oil (Kerosene), Ethanol and Biodiesel.
The following facilities are covered under QRA study for the Project.
- Receipt of products through truck unloading facility and pipeline from IOCL.
- Storage tanks FOR products.
- Tank Lorry filling facilities for product loading using loading arms.
The Objectives of QRA are as follows:
- Identification of Major Loss of Containment (LOC) events and associated Hazards.
- Estimation of Jet Fire, Pool Fire heat radiation impact distances, Flammable gas dispersion distance and overpressure explosion distances.
- Failure Frequency evaluation. Quantification of Societal risk.
- Estimation of Potential Loss of Life.
- To confirm that risk can be reduced in consistent with ALARP principle according to the UK HSE risk acceptance criteria by Performing a risk assessment.
- Recommending risk reducing measures to ensure that all risks fall under ALARP or ACCEPTABLE region.
The aim of performing a HAZOP (Hazard & Operability) study is to aid in managing project risks by early identification of hazards and operability problems associated with the proposed facility, to reduce the probability and consequences of an hazardous incident.
- The objective of HAZOP is to identify the hazards associated with the proposed facility.
- Identify the credible equipment instrument failures which could lead to accident scenarios / hazards / operability problems.
- In addition, HAZOP occasionally identifies items which could improve unit operations and efficiency.
The assessment is based on hazards that may occur during the operation of the Natural Gas Receiving Terminal of Saint Gobain at Sriperumbudur - Indian Oil Corporation Limited. The facilities covered under QRA study are given below:
• Pipeline from SV- 107
• Filtration skid
• Metering skid
• Regulating skid
• Skid outlet connection to Saint Gobain
This study aims to demonstrate the potential risk levels of personnel due to accidental release of hazardous materials from loss of containment scenarios in the facilities and that individual risks are within the broadly acceptable regions.
This project is related to process furnaces feasibility study for efficiency improvement. Totally 18 process furnaces were studied.
The scope of work includes following activities:
- These furnaces have high stack temperatures and scope for efficiency improvement. Following options are evaluated,
- Providing extra rows in convection section of furnaces, wherever space is available.
- Augmentation of existing APH with Plate type or new APH based on revised acid dew point calculation with respect to revised sulphur specification in fuels.
- Calculation of baseline efficiency based on current operating parameters and suggest measures to improve efficiency.
- Conversion of existing natural draft furnaces to balance draft furnaces.
- Performance improvement options.
- Feasibility of pure O2 injection along with combustion air in furnaces.
- Any other option which the vendor finds suitable.
- To provide acid dew point calculation for all process furnaces.
- Review of existing drawings and datasheets of heater, burner, Fuel composition, FD Fan and APH, PFD and P&IDs of relevant section. And to provide analysis of current operating condition.
- To generate a Prioritization matrix for various options based on techno-economic feasibility & recommend for furnace wise implementation.
- To check adequacy of existing equipment such as FD fan, Burners and APH for all studied cases/ options.
- To ensure that the changes made in APH section should not have any adverse effect on radiation section heat distribution, burner flame pattern, flame impingement, draft of heaters etc.
- To check Thermal and hydraulic adequacy of all process furnaces.
- To check draft to determine air side and flue gas side pressure drop in ducts (if applicable).
- To review if suggested modifications are implementable or constructability is feasible based on preliminary assessment of unit layout.
- Simulation results
- Final Study reports
- GHG reduction potential after implementation of suggested modifications
- Cost estimate with an accuracy of +/- 10% for the suggested modifications.
To ensure intrinsic safety and availability of the upcoming facility, a HAZOP study was conducted with the objective of identifying hazard and operational concerns sufficiently early on to allow overcoming of identified problems in time. The HAZOP study was made to improve diesel production and quality in the VGO MHC Unit with safety being the utmost priority.
PFDs, Schematic, Cause and Effect, Process Design Basis & P&IDs for the system and associated equipment were used for the HAZOP study. Over and above these documents, several other documents were used for reference these includes for e.g., equipment specification etc. and others as necessary.
The HAZOP methodology defined in this Procedure was framed based on below mentioned Standards:
- ICI method described by the Chemical Industries Association for HAZOPs, and
- Industrial best practices as outlined in the:
- CCPS (AIChE) Guideline for Hazard Evaluation Procedures (2nd edition),
- BS IEC 61882: 2001 HAZOP Studies – Application Guide.
The scope of the project is to carry out Vent Dispersion Modelling for the proposed Station SV-3G of Gokak to Goa 24” Spur Line under different weather and release conditions.
The Dispersion study includes the following steps that were carried out during the project schedule: -
- Source term modelling for determining the release rate;
- Physical effects modelling for determining the size of the hazard that is associated with the released fluid like heat radiation and toxic / flammable gas dispersion.
- Comparing the physical effects model with the required impact criteria.
The Objective of the Dispersion Study was met by the following methodology: -
- Quantity of consignment release from the vents to atmosphere were estimated.
- Potential hazards and their subsequent effects of fire and explosion and toxicity whichever and wherever is applicable were estimated.
- Hazards were identified and the ways that they could materialize were recognized.
- Suitable height for the open vents was recommended.
The dispersion distance downwind for the defined impact criteria was presented in the form of Tables and Graphs.
A Detailed Report along with the Conclusion & Recommendations from the study was presented.
