Japan/India: Technology License Larsen & Toubro Licenses Engineering Technology from Chiyoda of Japan

Editor: Dominik Stephan

Chiyoda, a major Japanese industrial plant engineering company, announces that it has concluded a Technology License Agreement with India’s Larsen & Toubro Limited (L&T) for provision of its proprietary “Chiyoda Thoroughbred 121TM” (CT-121TM”) flue gas desulphurization (FGD) technology for promotion in the Indian market.

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(Source: Public Domain / CC0 )

Mumbai/India – Under this agreement, Chiyoda will license the CT-121TM process to L&T, and L&T will be responsible for Engineering, Procurement and Construction (EPC) of the FGD systems. India, with its robust and rapid economic growth, is in need of power plants to sustain their development. For coal-fired power plants, stringent emission gas standard is being newly adopted in December 2015, and the demand for flue gas desulfurization plants is increasing significantly.

Chiyoda and L&T came to terms on the agreement owing to the proven superiority of the CT-121TM process technology. There are 83 CT-121TM units worldwide, and where environmental regulations are stringent, the CT-121 process has more than 20 % share in Japan and the US.

The CT-121 FGD process is a unique technology developed by Chiyoda in which sulphur dioxide (SO2) is absorbed from flue gas generated by coal-fired, oil-fired and other types of boilers and removed as gypsum. Unlike conventional processes in which the reagent slurry is sprayed on the flue gas, the CT-121TM process uses Chiyoda’s unique absorber, the Jet Bubbling Reactor (JBR), in which the flue gas is blown into the reagent slurry, forming a fine bubble bed where SO2 is absorbed, oxidized by injected air, and then neutralized by ground limestone slurry. This technology is highly efficient, enabling the low-cost removal of flue gas SO2. Moreover, the plant is compact and easy to maintain.