Displaying items by tag: heat

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.

US: California-based Heliogen has developed concentrated solar-thermal plants (CSPs) with the ability to focus sunlight to generate temperatures over 1000°C by micro-adjusting mirrors using computer technology. It has now engaged Parsons Corporation to build arrays of its CSPs for installation in cement pre-calciners. Requiring 900°C heat, these represent the largest part of the industry’s CO₂ output. The technology will firstly reduce this by replacing fossil fuels with a clean heat source, which moreover entirely bypasses the electrical grid. Heliogen CEO Bill Gross says that the installations will make carbon capture and storage (CCS) of the remaining CO₂ emissions from the conversion of limestone to lime easier by removing other pollutants. Heliogen is now targeting 1500°C from its CSPs, which would enable them to supersede cement fuels in kilns.