lliss Buddhiporn SinE kasaylit DATE 0E BIRTH October 5, 1966 PLACE 0F BIRTH Bangkok, Thailand INSTITUTIONS ATTENDED B.EnE. (Electronics EngineerinEi), King HonEkuts Institute of TechnoloEy Ladkrabang, BanElkok Thailand, 1988 H. Sc. (Appropriate Technologv for Resource Develliss Buddhiporn SinE kasaylit DATE 0E BIRTH October 5, 1966 PLACE 0F BIRTH Bangkok, Thailand INSTITUTIONS ATTENDED B.EnE. (Electronics EngineerinEi), King HonEkuts Institute of TechnoloEy Ladkrabang, BanElkok Thailand, 1988 H. Sc. (Appropriate Technologv for Resource Deve
Copyright by Mahidol University ArJdl'plil 9;"4lara-4-4'i| - - - - - 1- - - - - - - -r - - v- - Buddhiporn Singkasaylit Candidate Aurapin Eamsiri, Ph.D Pinai Orrungroage, ll Eng Co-advisor Monthree Chulasanoy&, U.D., Sukhun Poothong, H.Sc Dean Chairman Faeulty of Graduate Studies Haster of Science ProElran in Appropriate TechnoloEfy for Resource Developnrent Faeulty of Environnent and Resouree Studies Copyright by Mahidol University is entitled Thes PRELI}IIT{ARY IIIVBSTIGATIOII Oil PEAT GASTFICATIOTT was submitted to the Faculty of Graduate Studies, Hahidol University for the degree of Master of Scienee (Appropriate Technology for Resouree Developnent) Aurapin Chai.ri6a, ,/ / Prakarn Bunehuydee, Honthree Chulasanays, l'1.D., Ph.D Aurapin Dean Dean Faculty of Graduate Studies Faculty of Environment and Resouree Studies Copyright by Mahidol University BIOGRAPHY lliss Buddhiporn October 5, 1966 NAI,IE BIRTH PLACE 0F BIRTH DATE 0E SinE kasaylit Bangkok, Thailand INSTITUTIONS ATTENDED B.EnE (Electronics EngineerinEi), King HonEkut's Institute of TechnoloEy Ladkrabang, Thailand, H BanElkok 1988 Sc (Appropriate Technologv for Resource Developnent), Hahidol University, Thailand, 1991 Copyright by Mahidol University I wish to express ny sincerest gratitude to Dr Aurapin Eansiri, najor advisor for her kindness, invaluable advice and unceasinE help until this thesis is succeeded I an profoundly grateful to l{r Pinai Orrungroage and l{r Prakarn Bunchueydee, co-advisors for their guidances and constructive connents Gratitude are also extended to Dr Preeda Pibulsawas, llrs Pojanee and Dr DanronEl Khunmongkol for their sugElestions I would like to express ny thanks to The National Energy Admin istrat ion 's staffs especially Hiss Pisanai Sathienyanon and I'lr Thaweep Polsen for their helpful during the experinents l{y thanks also go to Fuel l,tineral Rerources Division who serving for gas analysis l,lost of all , I an greatly indebted to ny fanily and ny classnate for their encouragenent and assistance, Buddhiporn Singkasaylit Copyright by Mahidol University Copyright by Mahidol University ll Preliminary Investigation on Peat Gasification Buddhiporn S inElkasayl it Nane D egre Thes l'laster of Science ( Appropriate Technology for Resource Developnent ) e is Supervisory Conni ttee Aurapin Eansiri, Ph D Prakarn Bunchueydee, l{ Eng Date of Graduation Pinai 0rrungroage, H EnE June B.E 2534 (1S91) The work described in this thesis has involved a study of utilization of Narathiwat's peat using gasification technique to provide alternative source of energy Gasification of dried peat and briquetted peat have been investigated conparinEf with Bucalyptus wood using downdraft gasifier The condition used $ras varied with four different air flow rates In addition, product gas obtained were analyzed using Eas chronatography then gasification efficiency were calculated as the ratio of energy input and ener8ly output Gasification efficiency of 78.922 at gas flow late of 0.87 n3lnin could be obtained using dried peat while briquetted Elave only 58.747 at 0.53 ,37rirr The nost higihest efficiency of 91.952 appeared to be of Elasification Eucalyptus wood with 0.87n3,/nin air flow Copyright by Mahidol University lll rate Although, both peat forms could be achieved with producing a resonable efficieney, but serious problen about hiEih tar, which could block cleaninE! and eooling still be existed Eor briquetted peat not only tar problen but also fuel eracking which cause energy loss as char and resistant of air flow, are significantly received EinalLy, further studies considerinEl tar renoval fron gas produet and also improving efficiency of peat gasification are reeonnended, system, Copyright by Mahidol University P aEe i 4.2.1 Gasification of Eucalyptus wood 44 50 4.2.2 Gasificatitn of dried peat 4.2.3 Gasification of briquetted peat 56 62 4.3 Discussion of the lesults CONCLUSION AND RECOHHENDATION 69 Copyright by Mahidol University Copyright by Mahidol University Table 4'15 Gasification result of dried peat usinE air flow rate of 0'5? n3lnin Reaction condit ions Copyright by Mahidol University Table 4.16 Calculated heatinE value of gas produced fro! gasified dried peat with 0.5? n3,/nin air flow rate Copyright by Mahidol University Table 17 Gasif ication air flow rate Reaction cond itions Fuel noisture 15.2 z sD 0.98 Roon tenperature 33 Relative hunidity Air pressure 1014 Copyright by Mahidol University fron Easified dried peat with air flow iate Gas heat ( Va lue kcal,/nin ) Copyright by Mahidol University Gasification air flow rate Reaction conditions Fuel noisture 15.3 z sD 1.19 Roon tenperature 33 Relative hunid ity Air pressure IOLZ Copyright by Mahidol University Table 4.2O Calculated heatinEl value of gas produced f rom gasif ied dried peat with 7.23 t3,zorin air flow rate Copyright by Mahidol University result of briquetted Peat usinEl air flow rate of 0.3? ,3,/rin TabIe 4.21 Gasificat ion Reaction cond it ions Fuel moisture 14.9 z sD 0.79 Room tenperature 38 Relative humidity Air pressure 1010 Copyright by Mahidol University Table 4.22 Calculated heating value of fron E asified briquetted air flow rate Peat Gas heat Value ( kcal,/uin ) Copyright by Mahidol University Table 4.23 Gas ificat ion air flow rate Reaction conditions FueI weight 15 kg Fuel noisture 14.05 Z z sD 0.87 Roon tenperature 38 oC Relative humidity 43 Z Air pressure 1007 ni lIibar Copyright by Mahidol University fron Elasified briquetted peat air flow rate NornaI Copyright by Mahidol University Reaction conditions FueI weight 15 kg FueI noisture 14.O7 Z z sD 0.96 Roon tenperature 36 oC Relative hunidity 47 Air pressure 1010.5 Copyright by Mahidol University Table 4.26 Caleulated heating value of gas produced fron Efasif ied briquetted peat with 0.87 m3,rnin air flow rate N orna Copyright by Mahidol University TabIe 4.27 Gasificat ion air flow rate Reaction conditions Roon tenperature 35 oC Relative hunidity 50 U Air pressure 1012.5 ni I libar Copyright by Mahidol University 112 TabIe 4.28 Calculated heating value of gas P!oduced from gasified briquetted Peat $rith 1.23 a3 /nin air flow rate N orna I Copyright by Mahidol University 'r .'rF' lt.i,.:* .fit i Table 4.29 ResuIt of gasifieation efficiency and Residues renained after reaetions Output Residue energy (kca1) vrt.(ke) %C wood wood wood wood peat peat peat peat peat peat peat peat Note : Euca :EuealYPtus Briq :Briquetted Eff :Efficieney Copyright by Mahidol University ... to express ny thanks to The National Energy Admin istrat ion 's staffs especially Hiss Pisanai Sathienyanon and I'lr Thaweep Polsen for their helpful during the experinents l{y thanks also go... gasification process is more favourable to the environnent than that of oil, Because nitrogen oxide content gas produced fron burning producer gas is lower than oil burninEl For this reason, the application... presented in Chapter S It is Elenerally shown that peat in Bacho swaup is higher in heating value than Todaeng and Kabdaeng swamp Recently, Narathiwat.s peatland has partl.y been developed for agricultural