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Experimental Investigation on Thermoselect Process of Hospital Solid Wastes(PDF)

南京师范大学学报（工程技术版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2005年01期
Page:
12-15
Research Field:
Publishing date:

Info

Title:
Experimental Investigation on Thermoselect Process of Hospital Solid Wastes
Author(s):
LI Chuantong
School of Power Engineering, Nanjing Normal University, Jiangsu Nanjing 210042, China
Keywords:
hospita l so lid w astes;  the rmoselect;  exper im enta l investiga tion
PACS:
X799.5
DOI:
-
Abstract:
In o rder to dispose hosp ital so lid w astes (H SW ) as new resources w ithou t hazards, the comm on HSW are studied exper im enta lly w ith the advanced process o f therm ose lect. The com position o f gaseous products and the ir release pr inciples are obtained in the process of therm ose lect. In the experim enta l temperature increase rate rang e ( less than 50e /m in) , the amounts of the end vo la tilem atters re lease have differences between 1% ~ 5% when the temperature reaches the sam e value at different temperature increase rates. The thermoselect character istics o f the four k inds of representa tiveH SW ind ica te tha t, when the sam ple are heated to 600℃ , 70% of the volatilem a tters are released, and that as tem pera ture goes up, thew e ight lo ss ra te goes dow n, the w eigh ts change slow ly. The re fo re, the operation temperature o f the thermo se lect o fH SW shou ld be contro lled betw een 500~ 600℃ . As the tem pera tures o f thermo se lect rise, theH 2 content g radually increases, the CO2 conten t goes down, wh ile the CH 4 conten t goes up betw een 500~ 600℃ , but a fter 600e tends to go down s lightly, and the CO content r ises gradua lly but m ore and m ore sm oo thly. The heat va lues o f the resultants o f the therm ose lect decreasew ith the change of therm ose lect temperature, but have a m ax im um at about 600℃ . In order to obta in therm ose lect gases w ith higher hea t va lues, the temperature o f therm ose lect shou ld be kept at 600e or so. The heat v alue of the gases from cotton g auzes and pape r packag ing m ater ia ls therm ose lec t ranges between 13~ 17M J /Nm 3, and that o f expendab le transfusion tubes and o rganic packag ing m ater ia ls therm ose lect ranges between 21~ 27M J /Nm3, therefore, these therm oselect g ases can be used as the fue ls for civ il and pow er p lant use, which lays reliable basis fo r rationa lw ide utilization o fH SW as renew ab le energy source, and prov ides exper imenta l basis fo r the deve lopm ent o f therm ose lect process su itab le forHSW in China

References:

[ 1] Be reny i E B. The status of mun icipa l w aste combustion industry in the un ited states [ J]. Journa l of H azardous M ater ials, 1996, 10( 1): 1-17.
[ 2] H artenste in H-U, M arc H. Ove rv iew of munic ipal waste inc inera tion industry in the w est europe [ J]. Journa l o f H a zardousM ater ia ls, 1996, 10( 1): 19-30.
[ 3] Franz J Schw eitzer. Therose lec t-verfahren zur ent-und vergasung von abfllen[M ] . Germ any: EF-Ve rlag, 1994. 21- 55.

Memo

Memo:
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Last Update: 2013-04-29