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Monish Grover
Email: monish.grover@indiainfrastructure.com
Tel: +91-9999401099

FLUE GAS DESULPHURISATION SYSTEMS

FLUE GAS DESULPHURISATION SYSTEMS

• With the tightening of emission control regulations, a must have technology for the thermal power industry over the next few years is flue gas desulfurization (FGD) systems to capture the SOx emissions.
• To recall, the revised regulations brought out by the MoEFCCrequired thermal power plants to cut SOx emissions by December 2022, with permitted emissions levels varying with the age of the generation unit: (older units were allowed higher emissions than more newerones).
• FGDsystems are targeted to be installed by448 thermal units in India, aggregating over 169 GW. In the National Capital Region, flue gas desulphurization has been planned for 12.7 GW of thermal capacity.
• However, against these targets, progress in compliance has been slow as of February 2021, only six units,totalling 2,160 MW or just about 1 per cent of the targeted capacity, have commissioned FGDs. FGD tenders havebeen issued for 131 GW of capacity.Meanwhile, bids have been awarded for only 68.6 GW of capacity. Of the 11 plants located in Delhi NCR that were toinstall FGDs by December 2019, only one has been able to do so.
• The time required for implementation of FGD units is a key challenge for developers with about 30 months required to achieve commissioning of FGD after having regulatory and financing clarity.
• Further, there are systemic issues such as limited vendor and sub-vendor capability globally to supply FGDs, as well as the import restrictions which have delayed implementation. Further with the revised domestic content requirement for FGD systems, only 20 per cent of content can be imported instead of the previous 30 per cent.
• More importantly, there are a number of financial challenges for developers as well. Taking an average price of Rs 5.5 million per MW, the capex requirement for installing an FGD (for 170 GW of existing thermal capacity, 10 GW of commissioned capacity after the preparation of the phasing plan, and 58 GW of under-construction capacity), is estimated to be around Rs 131 trillion. The private plants, in particular, face funding issues which have stressed balance sheets.
• Lastly, quality limestone and the long-distance transportation cost of the raw material is also a challenge. Further, unutilised gypsum which is the waste produced from the FGD plants is also a concern area.
• To reconcile with these issues, the thermal power industry has been pursuing for an extension in timelines beyond 2022. The MoP has sought a two-year extension of the current deadline for the implementation of emission norms.The mission of this conference is to provide a platform to discuss the genco experience and plans as well as the issues and challenges associated with FGD implementation. It will also showcase best practices as well as latest and promising technology solutions.

AIR QUALITY CONTROL SYSTEMS

• With thermal power plants contributing to the largest share in emissions, abatement of pollutants such as SOx, NOx, and PM, among others remains a significant technological challenge for the industry. Adding to the challenges is the fact that Indian coal being one of the worst in the world with extremely high resistive dust and low sulphur content.
• As the 2022 deadline for meeting the new norms which were laid by the MoEFCCin 2015 for emissions draws nearer, a number of power plants are relentlessly trying to move forward as quickly as possible to reduce their emissions. The norms specify significant reductions in sulphur-dioxide, oxides of nitrogen, particulate matter and mercury emissions from thermal power plants.
• However, challenges such as space constraints, lack of holistic and sustainable technology assessment, scarcity of good AQCS suppliers, shutdown time needed for upgrade of pollution control equipment, stressed balance sheets, among others have posed significant challenges to meet the emission control requirements. Further, the supply chain impact due to Covid 19 on outsourced items as well as EPC works getting affected have presented major roadblocks.
• Broadly speaking, there are a suite of AQCS technology options for power generation plants that can help significantly reduce the emissions. These include: flue gas desulfurization systems, spray dryer absorber, circulating dry scrubbers, limestone-based wet FGD, low NOx burners, selective non-catalytic reduction, electrostatic precipitators (ESP), fabric filters, bag house dust collector, all of which have the potential to reduce SO2, NOx, PM and other emissions.
• The choice of deploying one or a combination of these AQCS technologiesdepends on fuel availability, capacity of the unit, boiler specifics, operating and capital costs, design parameters, emission reduction requirements, among others.Based on these considerations, with proper planning, developers need to carefully assessthe most appropriate applications for specific needs and conditions to scale and install AQCS technologies.
• The mission of this one-day virtual conference is to enable sharing of knowledge, best practices and gencos experiences and plans for meeting the revised emission norms. The sessions will also showcase new advancements and innovations in AQCS technologies for thermal power plants.

FLUE GAS DESULPHURISATION SYSTEMS

Key Trends and Outlook

• What is current level of SOx emissions at coal-based power plants?
• What is the coal-based capacity affected by the revised SOx norms?
• What are the key issues and challenges? What is the future outlook?

Government Perspective

• What is the government’s perspective on the FGD implementation by TPPs?
• What are the key issues and concerns? What are the steps being taken to address these?
• What is the way forward for expediting implementation?

NTPC’s Perspective

• What has been NTPC’s experience in FGD implementation?
• What are the plans and targets going forward?
• What are the key issues and concerns?

Genco Perspective

• What has been the experience of state gencos in FGD implementation?
• What are the plans and targets going forward?
• What are the key issues and concerns?

Focus on FGD Technologies

• What are the various FGD technology options?
• How do they compare in terms of costs and SOx removal efficiency?
• What are the key factors to be considered in technology selection?

Spotlight on Wet FGD Technology

• What are the key advantages and features of wet FGD technology?
• What are the SOx removal efficiencies of these technologies?
• What is their suitability in the Indian context?

Cost Economics, Tariff Impact and Scheduling

• What is the impact of FGD installation on costs and tariffs?
• What has been the regulatory and lenders stance towards recovery of these expenditures?
• What are the issues and challenges involved in implementation?

FGD Wastewater Treatment

• What are the strategies for treatment of wastewater from FGDs?
• What are the issues and concerns?
• What are the new and promising solutions?

Manufacturer’s Perspective 

• What is the perspective of equipment and technology providers on the FGD market?
• What are their key issues and concerns?
• What are the new and promising FGD technology options most suitable for Indian power utilities?

AIR QUALITY CONTROL SYSTEMS

Key Trends and Outlook

• What have been the key trends in the coal-based power generation segment?
• What has been the trend in emissions from thermal power plants?
• What are the key issues and concerns? What is the outlook for the segment?

Emission Norms Compliance – Progress so far, Challenges and Way forward

• What has been the progress so far in meeting the emission standards?
• What have been the recent developments?
• What are the key issues and concerns?

Developer Perspective

• What has been the progress in meeting environment norms?
• What are the key AQCS technologies being considered?
• What are the issues and challenges in meeting the norms?
• What are the expectations from regulators and other stakeholders?

Focus on SOx Emissions

• What are the various SOx abatement technology options?
• What are the key issues and concerns in meeting SOx norms?
• What are the efficiencies of these options? What have been the recent advances?

NOx Emission Control Technologies

• What are the various NOx Control technology options?
• What are the issues and concerns?
• What have been the recent developments and enhancements in primary and secondary control technologies?

PM Control

• What are the PM emission control technologies?
• What are the advantages that ESPs offer as compared to other PM emission control methods?
• What has been the experience so far? What are the key issues and concerns?

Focus on Fabric Filters

• What are the advantages of fabric filters in capturing PM emissions?
• What has been the experience so far? What are the issues and concerns?
• What have been the recent advancements?

Multi-Pollutant Control Technologies

• What are the various multi-pollutant control technologies?
• What has been the experience? What are the issues and concerns?
• What are the new and promising solutions?

Best Practices and Technology Showcase

• What are the new and promising AQCS technologies?
• What is their efficiency and their performance?
• What are the best practices in operations of AQCS systems?

 Speakers so far (alphabetic order, company wise)

• Sanjeev Kassi, Director Thermal, Ministry of Power*
• Stéphane Crevecoeur, Market Manager Environmental Applications, Carmeuse
• Denis Funk,  Head of Market Management for Power Generation & Water,  FLEXIM Flexible Industriemesstechnik GmbH
• Ajay Vajpeyi, Commercial Proposal Director, AQCS, Clean Combustion, GE Steam Power
• Atul Agarwal, AQCS Service Product Leader, GE Steam Power
• D M Jethwa, Chief Engineer and K B Chauhan, SE, GSECL
• Sabyasachi Majumdar, Senior Vice President, ICRA
• Kartikeya Misra, General Manager & Head O&M at JSW Energy
• Tho­mas Schrö­der, International Sales and Key Account Manager, Lechler GmbH
• Ravish Deshpande, Executive Engineer, FGD, Maharashtra State Power Generation Company
• Rajesh Kumar, Head Maintenance, Nabha Power
• Ashwini Markandan, AGM PE-SG, NTPC
• Pankaj Gupta, AGM, NTPC
• Udayan Kumar, General Manager, NTPC
• P. Tiwari, Head, Technology and Process Engineering, Tata Power
• Anmoy Kumar, Project Manager and Team Leader, TCE
• Bhaswati Nath, DGM(Environment & Safety) , West Bengal Power Development Corporation

FLUE GAS DESULPHURISATION SYSTEMS

The event is expected to draw participation from executives, managers and decision-makers from:

• Power plants
• State gencos
• FGD technology providers
• Pollution control boards
• Government and regulatory agencies
• Consultancy organisations
• Other industrial plants
• Research and development organisations
  Environmental firms, etc.

AIR QUALITY CONTROL SYSTEMS

The event is expected to draw participation from executives, managers and decision-makers from:

• Power plants
• State gencos
• FGD technology providers
• Pollution control boards
• Government and regulatory agencies
• Consultancies
• Other industrial plants
• Research and development organisations
• Environmental firms
• Etc.