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1st super-heavy equipment of Bangladesh's largest fertilizer factory installed

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1st super-heavy equipment of Bangladesh's largest fertilizer factory installed

By Xinhua Published: Mar 09, 2022 10:19 AM


A carbon dioxide stripper tower is installed at a fertilizer plant under construction in Narsingdi, Bangladesh, on March 8, 2022. The carbon dioxide stripping tower, the first super-heavy equipment of Bangladesh's Ghorashal-Polash Urea fertilizer project (GPUFP), the country's largest and first ever green fertilizer factory, was installed successfully on Tuesday.(Photo: Xinhua)

A carbon dioxide stripper tower is installed at a fertilizer plant under construction in Narsingdi, Bangladesh, on March 8, 2022. The carbon dioxide stripping tower, the first super-heavy equipment of Bangladesh's Ghorashal-Polash Urea fertilizer project (GPUFP), the country's largest and first ever green fertilizer factory, was installed successfully on Tuesday.(Photo: Xinhua)

A carbon dioxide stripper tower is installed at a fertilizer plant under construction in Narsingdi, Bangladesh, on March 8, 2022. The carbon dioxide stripping tower, the first super-heavy equipment of Bangladesh's Ghorashal-Polash Urea fertilizer project (GPUFP), the country's largest and first ever green fertilizer factory, was installed successfully on Tuesday.(Photo: Xinhua)


A carbon dioxide stripper tower is installed at a fertilizer plant under construction in Narsingdi, Bangladesh, on March 8, 2022. The carbon dioxide stripping tower, the first super-heavy equipment of Bangladesh's Ghorashal-Polash Urea fertilizer project (GPUFP), the country's largest and first ever green fertilizer factory, was installed successfully on Tuesday.(Photo: Xinhua)

A carbon dioxide stripper tower is installed at a fertilizer plant under construction in Narsingdi, Bangladesh, on March 8, 2022. The carbon dioxide stripping tower, the first super-heavy equipment of Bangladesh's Ghorashal-Polash Urea fertilizer project (GPUFP), the country's largest and first ever green fertilizer factory, was installed successfully on Tuesday.(Photo: Xinhua)

A carbon dioxide stripper tower is installed at a fertilizer plant under construction in Narsingdi, Bangladesh, on March 8, 2022. The carbon dioxide stripping tower, the first super-heavy equipment of Bangladesh's Ghorashal-Polash Urea fertilizer project (GPUFP), the country's largest and first ever green fertilizer factory, was installed successfully on Tuesday.(Photo: Xinhua)

A carbon dioxide stripper tower is installed at a fertilizer plant under construction in Narsingdi, Bangladesh, on March 8, 2022. The carbon dioxide stripping tower, the first super-heavy equipment of Bangladesh's Ghorashal-Polash Urea fertilizer project (GPUFP), the country's largest and first ever green fertilizer factory, was installed successfully on Tuesday.(Photo: Xinhua)

A carbon dioxide stripper tower is installed at a fertilizer plant under construction in Narsingdi, Bangladesh, on March 8, 2022. The carbon dioxide stripping tower, the first super-heavy equipment of Bangladesh's Ghorashal-Polash Urea fertilizer project (GPUFP), the country's largest and first ever green fertilizer factory, was installed successfully on Tuesday.(Photo: Xinhua)

The carbon dioxide stripping tower, the first super-heavy equipment of Bangladesh's Ghorashal-Polash Urea fertilizer project (GPUFP), the country's largest and first ever green fertilizer factory, was installed successfully on Tuesday.

Engineers and workers from China National Chemical Engineering & Construction Corporation Seven Ltd successfully lifted and installed the tower, which is 68.5 meters high and has a self-weight of 447.5 tons.

After "dress-up", its lifting-weight reaches 602.7 tons, being the tallest and heaviest equipment of the fertilizer factory located in Narsingdi district, some 51 km northeast of the national capital Dhaka.

The Chinese company said the smooth lifting of the tower has laid a solid foundation for the subsequent lifting of other super-heavy equipment.

With the main crane hooking slowly and the auxiliary crane working carefully, the carbon dioxide stripping tower was lifted at one time, winning appreciation from the company's Japanese partner Mitsubishi Heavy Industries and Bangladesh Chemical Industries Corporation.

Despite the COVID-19 outbreak, hundreds of engineers and skilled workers from the Chinese company, in collaboration with Mitsubishi Heavy Industries, worked round the clock while strictly following health and safety guidelines in order to complete the mega project as scheduled.

Launched in August 2020, the project is scheduled to be completed in 2023. Once completed, it will become the biggest fertilizer factory in Bangladesh, and the first ever green fertilizer factory in Bangladesh, with no pollutants emitted to the environment.

"All carbon dioxide will be captured. No carbon dioxide will go to the ambient, and other liquid effluent will not go to the surface waters outside before treatment. We may say it is the first green fertilizer (factory) in Bangladesh," GPUFP project manager Mohammad Rajiour Rahman Mollick earlier told Xinhua.

With an estimated daily production capacity of 2,800 metric tons, officials said the factory will help Bangladesh meet the growing demand of fertilizer in its efforts to ensure food security.
 
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Engineers and workers from China National Chemical Engineering & Construction Corporation Seven Ltd successfully lifted and installed the tower, which is 68.5 meters high and has a self-weight of 447.5 tons.
I have visited both Ghorasal and Zia fertilizer factories in 1988 (?). The Ghorasal Urea Fertilizer Factory (GUFF) was first built in the 1960s during Pakistan time and was renovated sometime in the 1990s, both done by Toyo Engineering Corporation (TEC) of Japan.

China built another factory named Polash Fertilizer Factory after 1971 in the same area adjacent to GUFF. Both of these have been demolished to build this new factory by China with larger capacity.

I think this Stripper Tower will not be the tallest structure of this plant. This tower is 68.5 m tall. But, there will be another one named Prilling Tower that may become 110 m tall, the tallest in a urea fertilizer factory.

There was a small lift inside the Prilling tower and with Japanese engineers from TEC I also went up to the top. It is little scary, though!!

Prilling is a process by which solid particles are produced from molten ammonia/ urea. Molten urea is sprayed from the top of a prilling tower. As the droplets fall through a countercurrent air flow, they cool and solidify into nearly spherical particles.

By the way, the raw material of urea fertilizer is natural gas (CH^4). Gas is supplied here from the Titas gas field. The urea chemical formula is CH^4N^2O. Nitrogen and oxygen are collected by synthesizing the air.
 
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