Absorption heat transformers (AHT) are devices that can increase the temperature of moderately low-enthalpy waste heat to a higher level, which can be taken good use of.

A new approach was presented for combining the medium-and-low temperature waste heat in sintered gas with methanol steam reforming to produce hydrogen.

The characteristics of low temperature(200℃) waste gasfrom sinter cooling process are poor quality and aboundent quanyity Technique of directly utilizing the low temperature waste gasd eveloped by Angang has been used in unfreezing materials and hot air sintering successfully,the remarkable economic benefit is attained This paper introduces development and application of the techniqu

It is the first time to use lower temperature waste gas in industrial production with satisfactory result of energy-saving.

In this way,the low temperature heat from FCC is reasonably used,circulating cooling water and electricity for air cooling for FCC are decreased,the amount of steam to be heated in gas separator is greatly reduced,resulting in obvious energy saving and economic results.

Optimizing the utilization of low temperature heat(LTH)in a refinery was introduced,such as using LTH from FCC unit instead of steam to heat up water as heat source for the re-boiler of gas separator and etc.

Energy conservation revamping to utilize low temperature heat in Jinan Company is expounded.