R&D On Micro-Gasifier for Power Generation From Solid Wastes

Author(s):  
Kunio Yoshikawa

A small-scale power generation system including a process of producing low-BTU gas by gasification of wastes has been developed. This system is called as the Micro STAR-MEET. Because the size of this system is small, on-site waste treatment is possible. Wastes are continuously fed into the gasifier and, high temperature air and steam are introduced into the gasifier and reformer to gasify and reform wastes. A pilot plant was constructed in order to investigate the performance of the Micro STAR-MEET system, and experiments using wood chips and plastics as fuels were conducted. Sufficient amount of gas that has 4.0 MJ/m3N HHV was evolved so that the dual-fueled diesel engine could be driven. The main components of the evolved gas were CO and H2. In this study, the gas that could be used as a fuel for the engine was evolved constantly, which indicates that the Micro STAR-MEET system is technically feasible.

2017 ◽  
Vol 43 (0) ◽  
pp. 43-49 ◽  
Author(s):  
Daiki Taniguchi ◽  
Yuki Narisada ◽  
Hiroaki Yamada ◽  
Toshihiko Tanaka ◽  
Tomohiro Tamura ◽  
...  

Author(s):  
Kunio Yoshikawa

An innovative small-scale gasification system for solid wastes is proposed which is known as STAR-MEET system. In this system, a fixed-bed pyrolyzer combined with a high temperature reformer using high temperature steam/air mixture is employed. From the experimental results using rubber chips as a fuel, it has been demonstrated that injection of high temperature steam/air mixture into the pyrolysis gas effectively decomposes tar and soot components in the pyrolysis gas into CO and H2, and almost dust and tar free clean reformed gas can be generated. The STAR-MEET system requires high temperature steam/air generator, and a 900C class metallic type compact heat exchanger has been successfully developed. This gasification system generates low BTU gas from solid wastes. Thus power generation experiments using a dual fueled (light oil gas and low BTU gas) small diesel engine were done using a simulated low BTU gas produced from natural gas diluted with nitrogen. Compared with light oil only driven, dual fueled engine shows similar thermal efficiency while significantly low NOx emission. Finally, power generation experiments using a complete STAR-MEET plant has been successfully done. These results demonstrates small-scale gasification and power generation system using solid wastes is quite feasible.


2020 ◽  
Vol 63 (11) ◽  
pp. 2256-2274 ◽  
Author(s):  
Enkhbayar Shagdar ◽  
Yong Shuai ◽  
Bachirou Guene Lougou ◽  
Enkhjin Ganbold ◽  
Ogugua Paul Chinonso ◽  
...  

2021 ◽  
Vol 227 ◽  
pp. 113623
Author(s):  
Zhongkai Zhao ◽  
Yohanes Andre Situmorang ◽  
Ping An ◽  
Jingxuan Yang ◽  
Xiaogang Hao ◽  
...  

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