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Chlor and Alkali

Chlor-alkali sector has been categorized on the basis of their process into two subsectors i.e. membrane based and mercury based. The total reported energy consumption of these designated consumers is about 0.88 million ton of oil equivalent/year.

 Specific energy consumption varies from 0.262to 0.997 toe/t of these 22 designated consumers. By the end of the first PAT cycle, the energy savings of 0.054 million ton of oil equivalent /year is expected to be achieved, which is 0.81% of total national energy saving targets assessed under PAT.

This section contains best practices adopted by Chlor Alkali industry sector during 2012-2015, the case studies and presentations from KEP launch workshop and National Energy Conservation Awards, NECA, 2012 and 2013 are listed here.

Resource Name: Refrigeration for Manufacture of Cephalosporin

Abstract: The processing of Cefroxime Acid Axetil Crystalline requires low temperatures at two stages in its three-stage manufacturing process; liquid nitrogen is used to achieve the low temperatures. The reactors in both the steps have limpets as well as jackets. Liquid nitrogen used in limpets is vented out and escapes to the atmosphere at a low temperature of -30°C to -80°C resulting in loss of energy and the reactor where the liquid nitrogen is injected inside gets released to atmosphere along with solvents and product vaporous resulting  in solvent loss as well as  corrosion to nearby equipments .   Liquid nitrogen cools rapidly, but the system consumes energy inefficiently  and is associated with a loss of liquid nitrogen by vaporisation.  It was a challenge to attain the low temperature in approximately the same time, using some other means.

Published by: Presented by Shri Harparkash Singh Gill,  President ( Operations and Director ) Nectar Lifescience Limited

Resource: Case study by Nectar Lifescience Limited


Resource Name:  Best Practices Adopted By Shriram Alkali & Chemicals Jhagadia to Improve Energy Efficiency

Abstract: Best practices adopted to improve energy efficiency of the plant,the resource presents management  methodology adopted for energy conservation, zero gap technology, additional air preheater in boiler, anti-friction ceramic based coating of cooling water pumps,  Increasing classifier angle of coal mill from 60 to 65º, copmpressed air and pumping power optimization.

Published by: Presented by Sh. Navin Jaiswal, Shriram Alkali & Chemicals in KEP launch workshop

Resource: Best practices case study-IIP-DCM Shriram-KEP 03-06

Resource Name: Presentation on Best Practices- Energy Conservation

Abstract: The resource highlights the view and participation of management towards energy performance improvements in the plant. The major interventions include, use of membrane cell technology UHDE Germany, useof energy efficient motors and VVFDs, Optimization of brine circuit, compressed air usage and pumpingh power, adition of extra electrolyzer to bring down the current density and save substantial power.

Published by: Presented by Aditya Birla Chemicals, Renukoot, in KEP launch workshop.

Resource: Best-practice-case-study-IIP-ABC_Renukoot_KEP03-05