ORGANIC WASTE GASIFICATION WITH HIGHLY SUPERHEATED STEAM PRODUCED BY CYCLIC DETONATIONS OF METHANE-STEAM-OXYGEN MIIXTURES

Author(s):  
S. M. FROLOV ◽  
◽  
V. A. SMETANYUK ◽  
I. O. SHAMSHIN ◽  
V. S. AKSENOV ◽  
...  

The paper presents the results of testing of the innovative laboratory-scale installation for organic waste anaerobic gasification to syngas (CO and H2) with highly superheated steam (HSS) produced by cyclic detonations of ternary methane-oxygen-steam mixtures in the pulsed detonation steam superheater (PDSSH).

2021 ◽  
Vol 183 ◽  
pp. 116195
Author(s):  
S.M. Frolov ◽  
V.A. Smetanyuk ◽  
I.O. Shamshin ◽  
I.A. Sadykov ◽  
A.S. Koval' ◽  
...  

2020 ◽  
Vol 495 (2) ◽  
pp. 191-195
Author(s):  
S. M. Frolov ◽  
V. A. Smetanyuk ◽  
S. S. Sergeev

Author(s):  
Mark Fernelius ◽  
Brian Sell ◽  
Kaitlin J. Moosmann ◽  
Ionio Q. Andrus ◽  
John L. Hoke ◽  
...  

2019 ◽  
Vol 3 (1) ◽  
pp. 29
Author(s):  
Ucik Ika Fenti Styana ◽  
Rosiana Indrawati ◽  
Muhammad Sigit Cahyono

<p class="Default"><em>One of the abundant energy source in Indonesia is organic waste in the form of leafs and branches which is widely avalilable in homeyard. It can be utilized as alternative energy source by gasification process. The objective of the study was to know the influence of raw material and AFR to the characteristic of organic waste gasification process. The raw material used were leafs and branches of melinjo (gnetum gnemon) which obtained from homeyard of inhabitant in Sidomoyo village, Godean sub-district, Sleman Regency, Indonesia. Before being gasified, it was prepared for proximate analysis in laboratorium. The gasification begins by feeding the raw material to the reactor with variation of 100% leaf, 100% branch, and 50%-50% leaf and branch. The gasification process was occured in reactor for one hour, and syn gas which produced has been analized to know the composition of it. Result shows that raw material have influenced the characteristic of gasification process. The highest heating rate was occured for gasification process of 100% leaf and AFR 0.5, which it gas has burned after 25 minuted process in oxidation temperature of 650 <sup>0</sup>C, reduction temperature of 350 <sup>0</sup>C, and pyrolysis temperature of 240 <sup>0</sup>C.</em></p>


2021 ◽  
Vol 9 ◽  
Author(s):  
Claudio Carbone ◽  
Francesco Gracceva ◽  
Nicola Pierro ◽  
Vincenzo Motola ◽  
Yi Zong ◽  
...  

The large market penetration of non-dispatchable renewable power sources (vRES), i.e., wind and photovoltaic, may be hampered by an increasing need for large scale energy storage capacity and the challenges of balancing the power grid. Novel technologies integrating waste gasification with reversible Solid-Oxide Cell systems have been proposed to provide flexible grid balancing services. The rSOC system operated in electrolysis mode uses excess power from vRES to generate hydrogen (H2), which is combined with syngas derived from waste gasification to produce methane (CH4). The rSOC system can also be operated in fuel cell mode by oxidising syngas to produce electricity. This paper presents a well-defined case study which aimed to estimate the potential deployment of a novel rSOC technology in a future power system dominated by intermittent renewables. The hourly power grid residual loads (i.e., the difference between load and vRES power generation) and the availability of low-grade organic waste and residues are quantified and matched for the southern Italian peninsula in 2030. The results show that the theoretical grid flexibility needs approximately 10 TW h of overproduction and 5 TW h of underproduction in 2030 to ensure the complete disposal of the municipal organic waste generated in 2030 (6.7 Mt) and that production of renewable CH4 will need to be 1.4–2.4 Mt, pointing to an intriguing perspective for the deployment of rSOC systems at a large scale. The multifunctionality of the system proposed is an added value that can make it a convenient and efficient piece of the puzzle of technologies required in a climate-neutral and circular economy. The results and methods here presented are intended to form the basis for estimations of future potential deployment and economic and environmental assessments of competing technologies.


Author(s):  
S. M. FROLOV ◽  
◽  
V. A. SMETANYUK ◽  
I. O. SHAMSHIN ◽  
F. S. FROLOV ◽  
...  

In [1], we patented the innovative pulse-detonation steam superheater (PDSS) for deep oxygen-free and pollutant-free gasification of organic municipal and industrial wastes to produce a gas mixture of H2 and CO. The PDSS is essentially the pulse-detonation engine operating on the ternary fuel-oxygen-steam mixture with fuel represented, e. g., by a gas mixture of H2 and CO (energy gas or syngas). The low-temperature steam (375-380 K) is produced by a standard steam generator. Pulsed detonations in the PDSS are achieved due to intermittent spark ignition of the fuel-oxygen mixture followed by fast deflagration-to-detonation transition and transmission of the detonation wave to the ternary fuel-oxygen-steam mixture. It is implied that the PDSS is directly connected to the waste gasification flow reactor and normally operates on the H2-CO energy gas. However, for starting the plant, the PDSS initially operates on any available hydrocarbon fuel or hydrogen.


2017 ◽  
Vol 16 (2) ◽  
pp. 46
Author(s):  
Sri Slamet Mulyati ◽  
Pujiono Pujiono ◽  
Teguh Budi Prijanto ◽  
Elanda Fikri

Latar belakang: Serbuk gergaji kayu merupakan salah satu sumber sampah organik yang belum banyak dimanfaatkan. Keberadaannya tidak jauh di sekitar kita, relatif murah dan mudah mendapatkannya. Di beberapa negara luar seperti Uganda, Algeria, India dan lain-lain memanfaatkan serbuk gergaji ini untuk berbagai keperluan diantaranya sebagai bahan campuran batu-bata, pembentuk polimer selulosa nitrat, dan bahan adsorben polutan organik phenol. Penelitian sebelumnya memanfaatkan serbuk gergaji sebagai bahan tambahan campuran batu-bata (kaolin, tanah liat, serbuk gergaji) dengan rasio 90:70:40.Metode: Penelitian ini merupakan eksperimen semu. Selanjutnya penulis tertarik untuk mengembangkan penelitian tersebut, untuk serbuk gergaji dibuat variasi berat bahannya, sementara yang lainnya tetap. Ukuran batu-bata dirancang berukuran 10,00 x 5,00 x 2,00 cm. Untuk mengetahui kualitas batu-bata yang dihasilkan, penulis melakukan analisis kualitas terhadap batu-bata yang dihasilkan dengan berbagai variasi berat tersebut. Kualitas yang diuji baru pada tahapan daya serap air dan kandungan garam. Selain uji kualitas batu-bata juga dilakukan analisis valuasi ekonominya. Penelitian ini dilakukan pada skala laboratorium dengan harapan dapat dijadikan bahan acuan apabila akan diaplikasikan di lapangan.Hasil: Hasil penelitian menunjukkan bahwa variasi berat serbuk gergaji antara rasio 20:70:90 dan 40:70:90 menunjukkan ada perbedaan peringkat rata-rata yang bermakna dalam hal daya serap batu-bata terhadap air begitu juga antara rasio 20:70:90 dan 60:70:90. Semua campuran batu-bata berdaya serap > 20%, belum memenuhi standar kualitas berdasarkan SNI 15-2094-2000, namun semua campuran batu-bata mempunyai kadar garam  (NaCl) < 50%, ini artinya sudah memenuhi standar kualitas berdasarkan SNI 15-2094-2000.Simpulan: Waktu pembakaran batu-bata dengan bahan tambahan serbuk gergaji lebih efisien 0,42 kalidibandingkan tanpa serbuk gergaji sehingga biaya lebih hemat. Abstract Title: Quality Analysis Brick Sourced Sawdust in a Variety of WeightBackground:Sawdust as organic waste has not been widely used. Its presence close to us, cheap and easy to obtain. In others countries such as Uganda, Algeria, India and others, utilize sawdust for various purposes, such as mixed materials, forming polymers cellullose nitrate, and phenol pollutant adsorbent. Previous research utilizes sawdust as mixture of brick with a ratio of 90:70:40: (kaolin, clay,sawdust).Method:This was a quasi experiment design.Furthermore, authors interested in developing such research, sawdust made weight variation while others remain. Size bricks are designed measuring 10.00 x 5.00 x 2.00 cm. To determine the quality of bricks produced, the authors analyze the quality of the bricks produced with a variety of weight of the sawdust. The quality of the tested new stage of absorption of water and salt content. In addition to testing the quality of bricks also performed a valuation analysis of its economy. This research was carried out on a laboratory scale with the hope can be used as a reference if it will be applied in the field. Result:The results showed that weight variation sawdust between 20:70:90 and 40:70:90 ratio showed no difference in the average rating is meaningful in terms of absorption bricks to water as well as the ratio of 20:70:90 and 60 : 70: 90. All blends brick absorbent> 20%, yet meet the standards of quality based on SNI 15-2094-2000, but all of a mixture of brick had higher levels of salt (NaCl) <50%, this means that it meets quality standards based on SNI 15-2094 -2000. Conclusion:Burning of bricks made from sawdust additional more efficient, ± 0.42 times from the time of burning bricks without straw, making it more cost-effective 


Sign in / Sign up

Export Citation Format

Share Document