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Trial run of Delhi’s buses on Hydrogen-blended CNG (HCNG) launched

  • IASbaba
  • October 22, 2020
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Trial run of Delhi’s buses on Hydrogen-blended CNG (HCNG) launched

Part of: GS Prelims and GS-III – Technology; Environment

In news

  • The trial run of Delhi’s buses on Hydrogen-blended CNG (HCNG) was recently launched.
  • Ministry: Ministry of Petroleum & Natural Gas

Key takeaways

  • HCNG is a hydrogen-enriched compressed natural gas (CNG).
  • In Delhi, instead of physically blending hydrogen with CNG, hydrogen spiked CNG will be produced using compact reforming process patented by Indian Oil Corporation.
  • H-CNG blends can be produced directly from CNG, bypassing the energy-intensive electrolysis process and high-pressure blending costs.
  • The flexible and robust process allows the production of H-CNG on-site, in less severe conditions, and under low pressure.
  • It provides a higher yield H-CNG mixture by up to 4% to 5% compared to CNG’s input quantity.
  • The cost of H-CNG production by the above process is about 22% cheaper than conventional physical blending.

Do you know?

  • The Supreme Court had suggested in 2019 to look at hydrogen-run vehicles as a solution for Delhi NCR’s poor air quality 
  • An SC directive in July 2018 had led to Indian Oil Corporation Limited (IOCL) and Indraprastha Gas Limited (IGL) collaborating to put up this first semi-commercial plant.
  • Mixing hydrogen with CNG physically is a difficult proposition and that is why IOCL came up with the compact reforming process, which reforms CNG and there is no need for mixing.

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