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News Displaying items by tag: South Korea

Displaying items by tag: South Korea

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SK Ecoplant aims to process Seoul's sewage sludge into 150,000t/yr of cement

19 October 2022

South Korea: SK Ecoplant is at the centre of an initiative in partnership with the city administration of Seoul to co-process 110,000t/yr of sewage sludge from the city as alternative fuel (AF) for cement production. AJU News has reported that the waste management company expects the sludge to fuel 150,000t/yr of local cement production under the initiative.

Seoul generates 200,000t/yr of sewage sludge.

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Halla Cement awards upgrade project to KHD

30 August 2022

South Korea: Halla Cement has awarded a supply and engineering contract to Germany-based KHD Humboldt Wedag for an upgrade of line 2 at Okke plant. KHD will supply a new Pyroclon R type calciner, with a Pyrotop type mixing chamber, and a 4.2m x 15m Pyrorotor type combustion reactor. Other equipment being provided includes: a Pyrobox type coal firing system for process start-up and operation balancing; replacement of stage five cyclones with new high-efficiency cyclones; and a new kiln inlet chamber with orifice. Erection and commissioning of the modernised production line is scheduled for the first quarter of 2024.

This latest project marks the second installation of a Pyrorotor at Halla Cement’s Okke plant. The installation of line 3 at the site is currently ongoing with commissioning scheduled for the first quarter of 2023. Overall, this will be KHD’s ninth installation of a Pyrorotor in South Korea.

The Pyrorotor has been promoted to cement plants as a way of using low-quality alternative fuels with minimal pre-processing. It offers a thermal substitution rate of over 85% and will also allow the Okke plant to reduce its NOx emissions. The installation of the new Pyroclon R type calciner and the high-efficiency cyclones in the lowest preheater stages will also provide the production line with an increase in efficiency due to an overall pressure drop reduction in the entire preheater.

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ThyssenKrupp Polysius Asia Pacific to supply step combuster for cement plant in South Korea

10 August 2022

South Korea: ThyssenKrupp Polysius’ Asia Pacific division has won an order to supply a Prepol SC type step combustion chamber for an unnamed cement plant in South Korea. The scope of the contract includes engineering, mechanical equipment and some modifications to the preheater tower. The commissioning of the system is planned for the end of 2023.

Regional chief executive officer Lukas Schoeneck said “The current turbulence on the coal market create a lot of pressure in cement plants to significantly increase the efforts on alternative fuels. Especially when talking high thermal substitution rates and lower quality alternative fuels, combustion chamber technologies connected to the calciner – like the Prepol SC - are the most suitable solution in the cement industry. Congratulations to the colleagues in Germany and in Asia working on this project.”

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South Korean partnership develops better alternative fuels

30 June 2022

South Korea: Sampyo Cement, the Korea Cement Association, LG Chem, Hyundai Rotem and the Korea Engineers Alliance have partnered to tackle the issue of chlorine dust from alternative fuels (AFs). AJU News has reported that LG Chem will develop a product to prevent chlorine dust from attaching to the insides of cement kilns. It will thereby also develop a domestic source of potassium chloride, for use in the production of potassium hydroxide and potassium carbonate. Hyundai Rotem will supply chlorine dust treatment facilities for the project.

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BMH Technology wins triple waste processing line supply contract with Ssangyong C&E

27 April 2021

South Korea: Finland-based BMH Technology has secured a contract to supply three waste shredding lines at Ssangyong C&E’s integrated cement plants at Donghae and Yeongwol. The lines will supply solid recovered fuel (SRF) for the units. Each line will include a Tyrannosaurus type FineScreen and Air Classifier for separating impurities. The full delivery will contain five Tyrannosaurus type FineShredders. The lines will be commissioned in the autumn of 2021.

Donghae plant will become one of the world’s largest SRF shredding plants producing alternative fuels for the cement industry once the order is complete. The unit will produce 80t/hr of SRF with a particle size under 25mm using two lines and four shredders. The cement plant is the world’s largest with a production capacity of 11.5Mt/yr.

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SungShin Cement orders two FLSmidth HotDiscs

10 November 2020

South Korea: SungShin Cement has placed an order with Denmark-based FLSmidth for the supply of two HotPlate combustion devices for installation in lines three and six of its SungShin cement plant. The plant is in the transition from coal fuel to the possibility of 100% alternative fuel (AF) use in the two lines, which it plans to commission in mid and late 2021 respectively.

Team manager of production technology Cho K-R said, “With its degree of flexibility, the HotDisc allows us to substitute coal with a wide range of AFs – refuse-derived fuel (RDF) in our case. As we turn waste into energy, the HotDisc lowers our operating costs without compromising energy efficiency.”

FLSmidth previously delivered two HotDiscs to South Korea, to SsangYong’s Donghae and Yeongwool cement plants.

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Egyptian government signs waste fuel deal with South Korea’s JST

12 February 2019

Egypt: South Korea’s JST has signed a deal with the government to build waste recycling plants to produce alternative fuels for cement plants. The signing ceremony was witnessed by Mohammed al-Assar, the Minister of State for Military Production, according to the Egyptian Independent. The ministry said in a statement that the deal is part of its strategy of working with international companies to transfer modern technologies to Egypt.

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Ulsan National Institute of Science and Technology builds toilet system that creates biofuels

07 June 2016

South Korea: Researchers at the Ulsan National Institute of Science and Technology (UNIST) have created a waterless toilet system that can convert human waste into biofuels. The system is part of a new outdoor creative laboratory, called Science Walden Pavillion, that opened to the public on 25 May 2016.

"Our ultimate goal is not only for the new toilet system to save water and operational costs for wastewater treatment plants, but for us to establish an ecosystem that supports technology innovation and drives economic diversification where human waste literally has a financial value," said Professor Jaeweon Cho, Director of Science Walden Pavillion.

The waterless toilet system uses a biological process to break down human waste into a dehydrated odourless compost-like material. It is then transferred to a digestion tank, containing thousands of different microbes. The microbes inside the tank biodegrade the powdered human manure to generate carbon dioxide and methane. Using high pressure and a membrane system, carbon dioxide is extracted to culture green algae for biofuel while methane is stored for later use as a heating fuel.

The project aims to reduce urbanisation's negative footprint on ecosystems by safely converting human waste into viable renewable energy, possibly with a monetary value.

If this experiment succeeds, the team plans to expand its use of the waterless toilet system and microbial energy production system in real life. This project has been carried out in collaboration with YATOO, Art Center Nabi, Paju Typography Institute and Hankuk Engineering Consultants in South Korea.

Published in Global CemFuels News
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New UNTHA shredding operation boosts SRF production capabilities in South Korea

07 December 2015

South Korea: A new solid recovered fuel (SRF) production facility is now fully operational in Wonju City, South Korea, thanks to global shredding company UNTHA and local partner PERITUS.

Korean waste management specialist Zion has built the SRF manufacturing plant to make smarter use of its residual materials. Now, with the new system in place, pre-sorted construction and demolition waste and commercial and industrial waste, is being shredded to produce a homogenous 50mm fuel for the cement industry.

The UNTHA XR3000C shredder with cutting concept was chosen following a series of trials at UNTHA's Austrian headquarters. Demonstrations showed that the technology could comfortably achieve throughputs of 60-70t/day, with scope to almost double that moving forward. The XR3000C's flexibility also means Zion can achieve a 40-50mm particle size from the single step shredding of plastic bales, which has further boosted the company's SRF production capabilities.

"South Korea may only be in the infancy of its waste-to-energy journey, yet the nation has formed a very sophisticated and disciplined approach to its waste roadmap relatively quickly. Legislation is in place to drive the production of <50mm SRF and the necessary infrastructure is fast evolving to accommodate this," said UNTHA's Head of Business Unit Waste Peter Streinik. "What we see here with Zion, however, is not just a company striving for compliance. They're prioritising energy efficiency, profitability and innovation too, to realise the wider benefits that come with smarter waste management."

Committed to principles akin to Europe's waste hierarchy, Zion extracts as many materials as possible, including bricks, metal, sands, glass and batteries, for re-use or recycling, prior to them entering the SRF manufacturing stream.

"Our family-run business is incredibly passionate about renewable energy, from solar power to alternative fuel production," said Zion's President Geumju Kim. "Now that our new SRF plant is up and running, with state-of-the-art configurable technology in place, the next step is to investigate relationships with different customers. We can satisfy varied specifications, and look forward to improving South Korea's resource agenda."

Published in Global CemFuels News
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