Gasification of sewage sludge using a throated downdraft gasifier and uncertainty analysis

Küçük Resim Yok

Tarih

2002

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

Erişim Hakkı

info:eu-repo/semantics/closedAccess

Özet

The most important objectives to gasify sewage sludge are to produce a clean gas of acceptable composition for synthesis or combustion, and to convert this solid resource into combustible-clean gas at high efficiency. The experiments of the gasification were conducted using a 5 kWe-throated downdraft gasifier. It was concluded that sewage sludge can be gasified to produce low-quality combustible gas, and would be an acceptable alternative source to fossil fuels for the production of the clean energy. It is suggested that the downdraft gasifier should be operated at 3.69-3.71 kg/h ± 1.43% of the feed rate, at 2.28-2.34 N m3/kg ± 1.84% of the air fuel ratio, around 497.74-514 N m3/m2 h ± 1.50% of specific gasification rate and around 93.64-94.15% ± 1.92% of turndown ratio in order to achieve good quality gas and to avoid clinker formation at the throat of the gasifier because of high ash content of sludge. The thermal efficiency was calculated as between 39% and 40% at the optimum operation levels given above. © 2002 Elsevier Science B.V. All rights reserved.

Açıklama

Anahtar Kelimeler

Air fuel ratio, Downdraft gasifier, Gasification, H/C, Sewage sludge, Specific gasification rate, Turndown ratio

Kaynak

Fuel Processing Technology

WoS Q Değeri

Q1

Scopus Q Değeri

Q1

Cilt

75

Sayı

1

Künye