Evaluation of the possibility of the sewage sludge gasification gas use as a fuel

Abstract

Abstract:Biomass is one of the major sources of energy that is estimated to contribute between 10% and 14% of the world's energy supply. Over the past several years, many societies have established policy targets to increase their production of renewable energy from biomass. The thermo-chemical utilization of biomass includes 4 technologies: the most popular combustion and co-firing, and unconventional: pyrolysis and gasification. Gasification is considered to be the perspective technology because has many advantages in comparison to traditional process of combustion: (1) limited emission of the SO2, NOx, oxides of the heavy metals and no risk of the dioxins and furans emission due to reducing atmosphere in the gasification reactor, (2) volume of the gasification gas is smaller in comparison to flue gases from combustion due to the reducing atmosphere, (3) gasification process produce gas which is potential gaseous fuel in power engineering (engines, gas turbines and boilers) and chemistry. Unfortunately, composition of the gasification gas is always described as a variable. Moreover, it depends on the conditions of the process and quality of the base fuel. For this reason, the use of gasification gas can't be very easy. For this reason, the knowledge of the basic properties of the gas is very important. Laminar burning velocity is assumed as an important quantity for in the process of the design equipment for the gas utilization. The numerical and experimental results of the laminar burning velocity of sewage sludge gasification gases were presented. Experimental Bunsen burner method was used. Cosilab 3 © software for numerical analysis was used. GRI-Mech 3.0 mechanism of gas oxidation was implemented. As a result of the work, the set of the parameters where the sewage sludge gasification gas combustion process is stable with effective heat release, were presented.

Major Advances and Challenges in Heterogeneous Catalysis for Environmental Applications: A Review

“…Production of hydrogen from polyethylene glycol contaminated wastewaters by supercritical water gasification with Ni/ZrO 2 heterogeneous catalysis was the subject of a paper by Yan et al [194]. Gasification of sewage sludge and the possibility to use the created gas as a fuel was also evaluated [195][196][197].…”

Torrefaction as a Valorization Method Used Prior to the Gasification of Sewage Sludge

“…In another work, Werle determined that the laminar flame speed increased with the increasing hydrogen content of the producer gas [53]. Werle and Dudziak assessed that it is possible to use producer gas from sewage sludge in spark-ignition engines [54]. However, Szwaja et al determined that producer gas from sewage sludge requires a 40% addition of methane to obtain a satisfactory performance of a spark-ignition engine [55].…”

Entrained Flow Plasma Gasification of Sewage Sludge–Proof-of-Concept and Fate of Inorganics

“…Werle discovered that the laminar flame speed rose along with the hydrogen level in the producer gas from sewage sludge [55]. Such gas could be usedin spark-ignition engines [56]. Nonetheless, to get adequate The following regulations are important on the EU level [26,27]:…”