A Review on Pyrolysis Technology and Characters of Products from Sewage Sludge

Abstract

Pyrolysis is one promising outlets in disposal of sewage sludge. In the current review paper, some key influent factors on sludge pyrolysis technology and all products were discussed. How the main factors including pyrolysis final temperature, residence time, heating rate and way, the raw sludge characteristics and catalyst, etc influent the products were discussed. Thereafter, another important issue of sludge pyrolysis is the characters and application of the products as well as the key factors affected sludge pyrolysis. The mainly composition, characters and applied prospect were discussed. An important aspect of sewage sludge pyrolysis is how to utilize the pyrolysis oil. Some of the properties and processing of pyrolysis oil were detailedly discussed.

Pyrolysis of Municipal Sewage Sludge for Biofuel Production: A Review

“…4,83−85 However, the most important factors are the pyrolysis temperature, heating, and residence time, with the temperature being the major factor. 4,83,86 In this paper, we reviewed the effects of the temperature, heating rate, residence time, and sewage sludge characteristics. The effects of the reaction pressure, catalysts, microwave receptors, etc.…”

“…Several parameters, including the sewage sludge particle size, temperature, heating rate, reactor type, reaction atmosphere, pressure, and residence time, can impact the properties and distribution of the sewage sludge pyrolysis products. ,− However, the most important factors are the pyrolysis temperature, heating, and residence time, with the temperature being the major factor. ,, In this paper, we reviewed the effects of the temperature, heating rate, residence time, and sewage sludge characteristics. The effects of the reaction pressure, catalysts, microwave receptors, etc.…”

Physico-Chemical Characters of Pyrolysis Oil Obtained from Sewage Sludge

“…The organic composition of pyrolysis oil can not be obtained with GC-MS for a mount of solid particles and other materials harmful to GC column. To achieve the organic properties, the oil must be treatment before test, a feasible way was distillation [10].…”