Latest waste heat utilization trends in cement plants

Source/Quelle: OneStone Research

1 Power range of WHR systems in China

Source/Quelle: OneStone Research

Source/Quelle: OneStone Research

2 a) Range of process parameters for WHR systems and b) Example calculation for heat capac-ities and kWh/t_cli

Source/Quelle: OneStone Research

Source/Quelle: OneStone Research

3 Number of WHR systems by region/country (2012)

Source/Quelle: OneStone Research

Source/Quelle: CCA, OneStone Research

4 Market development for WHR systems in China

Source/Quelle: CCA, OneStone Research

Source/Quelle: Anhui Conch

5 24 MW WHR system at China Cement

Source/Quelle: Anhui Conch

Source/Quelle: OneStone Consulting

6 Fundamental configuration of a WHR system

Source/Quelle: OneStone Consulting

Source/Quelle: NKK

7 WHR system with conventional steam generation

Source/Quelle: NKK

Source/Quelle: Sinoma-EC

8 Water treatment system for the steam generation

Source/Quelle: Sinoma-EC

Source/Quelle: NKK

9 Modern high-performance waste heat boiler

Source/Quelle: NKK

Source/Quelle: Turboden

10 ORC system in a cement plant

Source/Quelle: Turboden

Source/Quelle: FLSmidth

11 Steam turbine of the Kalina process

Source/Quelle: FLSmidth

Source/Quelle: HeidelbergCement

12 Price level for Chinese WHR technology

Source/Quelle: HeidelbergCement

Source/Quelle: Narjan Cement Company

13 A Narjan Cement plant

Source/Quelle: Narjan Cement Company

Source/Quelle: HeidelbergCement

Fig. 14 Cannakale cement plant

Source/Quelle: HeidelbergCement

Source/Quelle: HeidelbergCement

15 Waste heat boiler at the Cannakale plant

Source/Quelle: HeidelbergCement

Source/Quelle: Turboden

16 Cement plant in Ait Baha

Source/Quelle: Turboden

Source/Quelle: Turboden

17 ORC circuit with cooling system

Source/Quelle: Turboden

Source/Quelle: Turboden

CIMAR’s Ait Baha cement plant

Source/Quelle: Turboden

Over the last two to three years there has been a distinct rise in the use of non-conventional waste heat recovery systems (WHR). One reason for this is the increasing competitiveness of these technologies due to the larger number of references and experience with the systems.

The number of installed systems for generating electrical power from waste heat has increased worldwide from 525 in 2009 to 865 in 2012. The number of non-conventional processes has also risen noticeably. However, most users are still giving preference to the conventional steam turbine systems. This market report focuses on the technical parameters, because these are often misjudged. In addition, the market development is described with an outline of the WHR systems currently in operation, and three case histories are introduced.

1 Introduction

In recent years, power generation from waste heat...

TEXT Dr. Joachim Harder, OneStone Consulting S.L., Barcelona/Spain

Related articles:

Issue 2011-05

1 Introduction Japanese companies spearheaded the introduction of Waste Heat Recovery systems (WHR) in the cement industry. In 1980, Kawasaki Heavy Industries (KHI) put a WHR system into operation at...

more

Issue 2020-10 CTP TEAM S.R.L.

A modern cement kiln is already optimised to get the maximum thermal efficiency and keep specific consumptions under control; this target is reached reusing as much as possible in the process the high...

more

Issue 2011-04

A waste heat recovery system delivered by FLSmidth to Vicat Sagar Cements will be integrated with their new pyro line, which is also supplied by FLSmidth. The WHR system is expected to be operational...

more

CTP TEAM S.R.L

The CTP Team Italy signed a turnkey EPC contract for Waste Heat Recovery with Sonmez Cimento Yapi ve Madencilik, in March 2019. The project consists of a WHR system with dual-loop configuration, the...

more

Issue 2014-7-8 Claudius Peters Projects GmbH

1 Introduction The Claudius Peters g-cooler is a moving bed reactor for indirect cooling of free-flowing bulk materials. The thermal content of the bulk material is transferred to a coolant flowing...

more