Displaying items by tag: heat

Austria: Zementwerk Hatschek's Gmunden cement plant eliminated 3800t of CO₂ emissions from its local area during 2022 through its contribution to municipal heating. Zementwerk Hatschek, a subsidiary of Rohrdorfer, heats local households using recovered heat from the Gmunden cement plant's waste heat recover (WHR) system.

A delegation of cement plant representatives and local officials from Baden-Württemberg, Germany, visited the plant to learn about its WHR and heat supply systems on 20 January 2022.

Plant manager Peter Fürhapter said "Municipal heating based on our waste heat contributes to CO₂ reduction in Upper Austria, helping us to achieve our CO₂ reduction goals under the Paris Climate Agreement." He added "We are pleased that with this forward-looking project we are a model for similar projects in Europe."

Colombia: The Science-Based Targets Initiative (SBTi) has validated Grupo Argos Subsidiary Cementos Argos’ CO₂ emissions reduction goals. Cementos Argos aims to reduce its Scope 1 and Scope 2 CO₂ emissions in line with a well-below 2°C climate change scenario by 2030. Its strategy includes increasing co-processing of alternative fuel (AF), reducing its cement’s clinker factor, optimising its heat and electricity consumption, investing in cleaner technologies, increasing the share of renewable power it uses and diversifying its product range to include more low-carbon products.

Sweden: Germany-based KIMA Process Control has secured a contract for the supply of a kiln shell cooling system for Cementa's Slite cement plant in Gotland. 88 water jets will deliver centimetre-precision cooling for the 55m-long kiln, while IR pyrometers measure temperatures over areas of 10cm². According to KIMA Process Control, the equipment can avoid unnecessary cooling of the kiln shell, conserving the heat energy supplied by the main burner.

The new cooling system will eliminate the use of energy intensive electric fans, slashing 1700t/yr in CO₂ emissions, according to the supplier. It said that noise emissions will also 'drastically' decline as a result of the upgrade. The system's operating costs are reportedly 98% less than those of the plant's existing fan system.

The supplier said that the new equipment will 'bring the cement plant in Slite an economic benefit in the shortest possible time.' It said "For the cement industry, this project represents a new milestone in terms of best available technology in the operation of rotary kilns."

US: Thailand-based Siam Cement Group (SCG) has invested in Rondo Energy, developer of the Heat Battery. The cement company aims to help its various business lines to decarbonise their operations through deployment of Rondo Energy’s technology. Rondo Energy said that the partnership will support and earlier expansion of its product’s footprint across Southeast Asia and worldwide.

Rondo Energy chief executive officer John O’Donnell said “Rondo is excited to be working with SCG. Rondo’s technology opens a new pathway for SCG to achieve their deep decarbonisation goals and simultaneously reduce their operating costs. SCG’s deep capabilities in execution and quality will enable Rondo to deliver reliable energy infrastructure rapidly and at scale. Together, Rondo and SCG have the global footprint to deliver deep decarbonisation projects, including heat as a service projects in Southeast Asia and worldwide.”

US: Titan Cement Group has invested in renewably powered Heat Battery developer Rondo Energy, in the California-based company’s Series A funding round. The Heat Battery is a 98% efficient electrical heater with high scalability, according to the supplier. Its modular battery provides grid load flexibility, with the possibility of continuous operation. Titan Cement Group says that it will now work in a technological partnership with Rondo Energy to develop new concepts for cement decarbonisation using Rondo Energy’s ‘unique innovation.’

Kyrgyzstan: United Cement Group (UCG) subsidiary Kant Cement has begun installation of a lining on its Kant cement plant’s rotary kiln in order to reduce losses and improve the efficiency of the plant. The producer expects the lining to raise its kiln’s temperatures by 100°C. It consists of wear-resistent RMAG–H2 bricks and HALBOR–400 refractory bricks.

UCG said “Energy efficiency and energy saving are among the most important factors for the successful implementation of ongoing economic and social reforms.”

Signapore: Researchers at the Nanyang Technological University in Singapore (NTU Singapore) have successfully used bacteria to combine two abundant waste streams into clinker-free biocement. NDTV news has reported that the scientists developed the material from by combining calcium ions with urea in a mixture of industrial carbide sludge and urine. The process takes place at room temperature, reducing CO₂ emissions while also offering waste management benefits.

The NTU Singapore team is presently testing the biocement on artificial beaches. It will subsequently investigate other possible large-scale applications around Singapore.

Spain: Cemex’s Mósteles clinker pilot batch production unit at IMDEA Energy Institute in Madrid Autonomous Community has produced its first batch of solar-heated clinker. The unit uses Switzerland-based Synhelion solar radiation technology. The technology uses a solar receiver and gaseous heat transfer fluid to heat raw materials.

Cemex chief executive officer Fernando Gonzalez said “The production of the first solar clinker is an exciting milestone for this transformational technology. It is proof of our commitment to deliver tangible outcomes through innovation to achieve our goal of delivering only net-zero CO₂ concrete by 2050.” He concluded “Cemex is building a better future, and that future must be sustainable.”

France: Hoffmann Green Cement Technologies has launched H-Iona clinkerless cement, its first cement to be made available to retail customers in bagged form. Dow Jones Institutional News has reported that H-Iona cement production’s CO2 emissions are 150kg/t, according to the producer. It claims that this is just 17% that of ordinary Portland cement (OPC). Hoffmann Green Cement Technologies produces H-Iona, primarily from ground granulated blast furnace slag (GGBFS) and gypsum, heat-free at its fully automated Bournezeau plant.

Co-founder Julien Blanchard and David Hoffmannsaid "By launching H-Iona, the lowest carbon cement on the European market, Hoffmann Green Cement is following its continuous innovation approach.” They added “This is the first low-carbon cement to have received CE marking. Thanks to this ground breaking technology, we are democratising access to low-carbon cement.”

Saudi Arabia: Denmark-based FLSmidth has announced that it has secured an engineering, procurement and construction (EPC) contract with Yanbu Cement for a ‘massive’ efficiency-increasing upgrade to reduce the heat and power consumption of the 5.9Mt/yr integrated Yanbu cement plant in Al Madinah Province.

FLSmidth previously supplied the Yanbu cement plant with an automation upgrade and burner system retrofit in 2018. It concluded a service agreement with Yanbu Cement in 2019.