Displaying items by tag: Coprocessing
Mexico: Cemex Mexico plans to install hydrogen injection systems at four cement plants across Mexico. The producer will use the technology to increase alternative fuel (AF) substitution at the plants by 8 - 10%. A 40% reduction in Scope 3 purchased fuel emissions forms part of Cemex's 2020 -2030 CO2 emissions reduction strategy. Through the decarbonisation and circular economy pillars of its Future in Action plan, the group aims to become carbon neutral by 2050.
Cemex Mexico president Ricardo Naya said "Hydrogen is a key technology to accelerate the implementation of our climate action roadmap."
The El Financiero newspaper has reported that Cemex set a new group record AF substitution rate of 34% in September 2022. It uses hydrogen at all of its European cement plants and at one plant in the Dominican Republic.
LafargeHolcim to double waste derived fuels usage by 2030
21 September 2020Switzerland: LafargeHolcim says it will double the use of waste derived fuels in production by 2030 from a baseline set in 2018. It made the announcement as it signed the Science-Based Targets initiative (SBTi) Business Ambition for 1.5°C pledge, which commits it to net-zero carbon dioxide (CO2) emissions by 2050. It says it is the first building materials company to join the pledge.
The company has committed itself to a 20% reduction in its CO2 intensity between 2018 and 2030. It says that over the period it will: “accelerate the use of low-carbon and carbon-neutral products such as ECOPact and Susteno, recycle 100Mt of waste and by-products for energy and raw materials, scale up the use of calcined clay and develop novel cements with new binders, reach net CO2 emissions 475kg/t of cementitious material and open and operate its first net-zero CO2 cement plant.
Chief Executive Officer (CEO) Jan Jenisch said, “I believe in building a world that works for people and the planet. That’s why we are reinventing how the world builds today to make it greener with low-carbon and circular solutions. I am very excited to be working with SBTi, taking a rigorous science-based approach to shape our net zero roadmap and accelerating our efforts to substantially lower our CO2 footprint. I will not stop pushing the boundaries to lead the way in green construction.”
Votorantim Cimentos ready to start co-processing solid waste at Rio Branco do Sul plant
04 April 2019Brazil: Votorantim Cimentos is ready to start co-processing 400t/month of solid waste at its Rio Branco do Sul plant in Parana. The project has been approved by IAP, the state environmental institute, and is being run in conjunction with the local authorities, according to the Parana Portal. The initiative was started August 2018 with agreement between Votorantim Cimentos, Itambe and Supremo.
Votorantim wins award for Açaí stone co-processing project
18 December 2018Brazil: Votorantim Cimentos has won an award for its açaí stone co-processing project at its Primavera plant in Pará state. It won the atmosphere emissions category at the 14th Brazilian Environmental Awards organised by the American Chamber of Commerce for Brazil. The plant processes 6500t/month of açaí berry stones and it plans to target 10,000t/month. The state of Pará produces around 0.5Mt/yr of açaí stone.
India: UltraTech Cement has signed an agreement with Southern Railways to co-process waste at its Ariyalur plant in Tamil Nadu. Waste to be used as fuel at the plant as part of the ten-year deal will include rexin, cushion, coir and thermocol, according to the Times of India newspaper. The first shipment of waste to the cement plant was transported in mid-July 2018.
China: China Resources Cement has completed a hazardous waste co-processing project in the Changjiang Li Autonomous County of Hainan. The unit started operation in early February 2018 and it has a processing capacity of 100t/day.
China: Huaxin Cement built three co-processing projects for its cement plants in 2016. It also signed contracts to build 10 new projects and six new projects were under construction. The cement producer said in its annual report that it had 25 co-processing projects operating or under construction with a capacity of 5Mt/yr. It added that its waste disposal per tonne of clinker production was ahead of its competitors in the sector. It noted that its had increased its usage of alternative fuels in the second half of the year following an increase in the cost of coal. Huaxin Cement, like other Chinese cement producers, has been actively enacting government-promoted supply side reforms following a poor market in 2015.
China: Dongwu Cement has struck an agreement with Suzhou Dongfang Jiujiu Industry to start a waste disposal company to supply alternative fuels for its kiln. The cement producer based in Wujiang City, Suzhou Prefecture and its partner will invest US$7.3m in the joint venture to start with, according to the ET Net News Agency. Dongwu Cement will own a 52% share in the company.
It will co-process urban sludge, organic waste and industrial solid waste. It will also collect, store and dispose of soil for soil remediation. It is expected the company will dispose of 50,000t/yr of industrial solid waste.
Dongwu Cement operates a 0.75Mt/yr cement plant with two grinding mills, giving it a cement production capacity of 1.64Mt/yr. It manufactures 42.5 and 32.5 class Ordinary Portland Cement.
Ireland: Irish Cement is planning to cut the amount alternative fuels it intends to co-process at its Limerick cement plant to 90,000t/yr. The cement producer withdrew its initial planning application in March 2016 but has resubmitted a new application with a lower amount of alternative fuels, according to the Limerick Leader newspaper. It now aims to burn half of the original amount that was originally requested.
It originally announced its Euro10m plan to co-process alternative fuels including tyres at the plant in December 2015. The investment is intended to create 40 jobs. However, local citizens have opposed the plans with over 450 people signing a petition against the development.