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Sulphur 387 Mar-Apr 2020

SulGas 2020


CONFERENCE REPORT

SulGas 2020

Now in its second year, SulGas 2020, South Asia’s only conference on gas treating and sulphur recovery, took place 3-4 February 2020 at the Novotel – Juhu Beach, in Juhu, Mumbai, India.

Dr Upasana Manimegalai Sridhar of 310i Technologies LLP introduces the round table panel. From left to right: Ritesh Gulabani (Dow Chemical International (P) Ltd), Rajesh Nandanwar (Bharat Oman Refineries Ltd), Manu Shreshtha Miglani (Engineers India Ltd), Rajiv Srinivasan (Shell) and Srinivas Vadlamani (Schlumberger).

Building on the success of the first SulGas conference in 2019, this year SulGas attracted 170 delegates from 68 companies – 46 Indian companies, including 11 operating companies, and 22 international companies.

With IMO 2020 and BS-VI standards set to be in place in 2020, SulGas provides a technical forum for the sulphur and gas treating industry in the Indian subcontinent to convene and focus on understanding the problems and challenges facing the industry and to find solutions. With the processing of higher sulphur crudes and the changeover from BS-IV to BS-VI standards across all refineries in India, and the similar tightening of standards in the rest of the Southeast Asia region, the region is looking for the best way to remove, store and sell more sulphur.

The speakers at this two day event, which is organised by Three Ten Initiatives Technologies LLP, came from a variety of operating, licensing, engineering, and technology companies. SulGas focuses on issues unique to the region in the areas of:

  • Equipment and process design;
  • Process optimisation;
  • Near misses;
  • Analytical methods;
  • Failures and successes of troubleshooting efforts;
  • Plant operations.

The conference started off with an Experts’ Forum. Nate Hatcher of Optimized Gas Treating and Manu Miglani of Engineers India Limited provided design guidelines for heat stable salts (HSS) levels in amine systems. They discussed work undertaken to clear up a number of misconceptions that have been widespread for many years concerning HSS. Most of these misconceptions result from differing definitions, poor understanding of chemistry and the misuse of jargon. The effects of HSS on treating performance, operations and corrosion were reviewed with several quantitative case studies and corrosion measurements. With this understanding, previous design guidelines can be better understood and placed in context to their areas of applicability. For a given application, there will be a ”sweet spot” in the treating, which can only be revealed through process modelling with a truly fundamental rate-based model that uses the correct chemistry.

The next presentation in this session was by Ritesh Gulabani of Dow Chemical International (P) Ltd who discussed key points for the design and operation of low-pressure amine plants, e.g. tail gas treating units (TGTU) for sulphur recovery units, acid gas enrichment (AGE) for sulphur plant feed quality improvement and CO2 capture (CCU) from exhaust gases. Specific treating objectives, commonly employed solvents, feed gas composition, absorber operating pressure and limiting factors, typical treated gas specifications and solvent regeneration requirements for TGTU, AGE and CCU plants were discussed.

Technical programme

The technical agenda included sessions on:

  • SRU optimisation and control;
  • Systems and simulation;
  • Gas and liquid treating applications;
  • Case studies – learnings and experiences shared;
  • SRU reliability enhancements;
  • Innovation in design and equipment;
  • Separation technology.

In addition, a round table session was held on day 2 with a panel of senior experts from the SulGas advisory committee responding to questions arising throughout the conference and discussing design, operating, and other practical issues of concern in the Indian context.

Latest in Outlook & Reviews

Running the gamut

This issue of Sulphur magazine contains a preview of CRU’s Sulphur + Sulphuric Acid conference in Woodlands, Texas, which is being held from November 3rd to 5th this year, giving delegates the opportunity to meet and discuss some of the trends which are continuing to change the sulphur and sulphuric acid industries. Some of this is echoed in our editorial coverage this issue; the rise of electric vehicles and the continuing electrification of society is changing demand for metals and impacting upon both sulphur and sulphuric acid markets alike. As CRU’s principal analyst Peter Harrison discusses on pages 36-37, battery demand for nickel is leading to a surge in new nickel leaching capacity in Indonesia which is drawing in greatly increased volumes of sulphur, while rising demand for copper is leading to additional volumes of smelter acid from China, India and Indonesia which are impacting the merchant market for acid, as detailed by CRU’s Viviana Alvorado on pages 38-40. In the United States, new lithium mines will require additional sulphur (see pages 22-23). Rare earths and battery metal recovery will form a major topic on the first day of the Sulphur + Sulphuric Acid conference, with speakers from Lithium Americas, one of the pioneers of the new US lithium industry.

Is the world ready for CBAM?

At the end of this year, the European Union’s Carbon Border Adjustment Mechanism (CBAM) will move from its transitional phase into its ‘definitive’ phase, whereby the carbon costs of goods entering the EU will need to be priced in. CBAM requires suppliers to calculate the carbon emissions of their fertilizer (and other, e.g. steel) products, including indirect emissions, for example from electricity consumed in the process, and emissions of precursor or raw materials. They will then need to purchase CBAM certificates to cover embedded emissions above the established free allowance benchmark rates determined by the European Commission: 1.57 tonnes CO2e/tonne ammonia and 0.23 tCO2e/t nitric acid.