BAG FILTER AND CATALYST ( SCR ) – DOES THIS FIT TOGETHER?

2021 ◽  
pp. 109-121
Author(s):  
Ruediger Margraf
Keyword(s):  
Bag Filter

TEKNOLOGI PENANGANAN EMISI GAS DARI INSINERATOR SAMPAH KOTA

2019 ◽  
Vol 11 (2) ◽  
Author(s):  
Prasetiyadi Prasetiyadi ◽  
Wiharja Wiharja ◽  
Sri Wahyono
Keyword(s):  
Fly Ash ◽  
Pressure Drop ◽  
Spray Drying ◽  
Flue Gas ◽  
Bag Filter

Proses pembakaran sampah kota melalui insinerator akan menghasilkan uap panas yang bisa dimanfaatkan  untuk membangkitkan energi listrik, akan tetapi pada proses ini juga menghasilkan output berupa flue gas yang didominasi oleh partikel (fly ash) dan gas beracun seperti: HCl, SO2, NOx, HF, Hg, Cd dan Dioxin. Sebelum dibuang ke udara bebas, flue gas tersebut harus diolah agar memenuhi baku mutu lingkungan. Teknologi penanganan partikel dan gas polutan tersedia dan dapat dibuat dengan berbagai kapasitas. Untuk menangani flue gas dari insinerator sampah digunakan Quencher untuk menekan laju pembentukan kembali dioksin dan furan setelah proses pembakaran,  Spray Drying Absorption (SDA) untuk mengikat gas asam dan  logam berat serta bag filter untuk menangkap partikel. Selain itu digunakan ID Fan dan Cerobong Asap untuk pengatasi pressure drop yang terjadi akibat pengoperasian peralatan APC dan melepas ke udara.

The Design of Exhaust Gas Cooler for Diesel Particulate Bag Filter

2015 ◽  
Vol 737 ◽  
pp. 608-611
Author(s):  
Xiu Ye Wang ◽  
Guo Bin Li ◽  
Nan Xu
Keyword(s):  
Diesel Exhaust ◽  
Particulate Filter ◽  
Particulate Emissions ◽  
Bag Filter ◽  
Engine Exhaust ◽  
Particulate Emission ◽  
Filter System ◽  
Exhaust Temperature ◽  
Diesel Exhaust Particulate ◽  
Exhaust Particulate

Currently, the application of bag-filter technology in controlling diesel exhaust particulate emissions has been close to practical stage. As one of the key links in bag-filter technology, engine exhaust cooling can directly influence working safety of the entire exhaust particulate filter system. Thermodynamic calculations and experimental research of water-cooled chiller has provided a feasible basis for water cooler to be used in actual diesel exhaust particulate emission control system. The cooler can make engine exhaust temperature drop from 400 to 180 . Even when engine works in high-speed and high-load condition, inlet exhaust temperature of cooler can descend from 500 to 190 or so after cooling, which can still meet bag-filter system requirement of below 200 .

scholarly journals Theoretical Analysis of Dust Cleaning Operarion in Multi-Compartment Bag Filter

1973 ◽  
Vol 37 (7) ◽  
pp. 718-724,a1 ◽  
Author(s):  
Nobutoshi Tanaka ◽  
Kazutaka Makino ◽  
Koichi Iinoya
Keyword(s):  
Theoretical Analysis ◽  
Bag Filter

Synthesis of Macro-Porous De-NOx Catalysts for Poly-Tetra-Fluoro-Ethylene Membrane Bag Filter

2021 ◽  
Vol 21 (8) ◽  
pp. 4537-4543
Author(s):  
Byung Chan Kwon ◽  
Dohyung Kang ◽  
Seung Woo Lee ◽  
No-Kuk Park ◽  
Jang Hun Lee ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Nitrogen Oxides ◽  
Porous Alumina ◽  
Combustion Process ◽  
Textural Properties ◽  
Filter Material ◽  
Facilitated Diffusion ◽  
Exhaust Gas ◽  
Bag Filter ◽  
Combustion Exhaust

This study examined the effects of the porosity of catalytic bag-filter materials for applications to the SNCR (selective noncatalytic reduction)-SCR (selective catalytic reduction) hybrid process for highly treating nitrogen Oxides (NOx) in the exhaust gas of a combustion process. A V2O5/TiO2 catalyst was dispersed in a PTFE (poly-tetra-fluoro-ethylene) used as the catalytic bag-filter material to remove particulate matter and nitrogen oxides contained in the combustion exhaust gas. Macroporous alumina was added into a V2O5/TiO2-dispersed PTFE to improve the catalytic activity of V2O5/TiO2 dispersed in the PTFE material. In this study, the textural properties and denitrification performances of the V2O5/TiO2-dispersed PTFE materials were examined according to the addition of macro-porous alumina. When the denitrification catalyst was solely dispersed in the PTFE material, the catalyst inside the PTFE backbone had low gas-solid contact efficiency owing to the low porosity of the PTFE materials, resulting in low denitrification efficiency. On the other hand, the catalytic activity of V2O5/TiO2 dispersed inside the macro-porous PTFE material was significantly enhanced by adding macro-porous alumina into the PTFE matrix. The enhanced textural properties of the macro-porous PTFE material where V2O5/TiO2 was uniformly dispersed proved the facilitated diffusion of combustion exhaust gas into the PTFE material.

DESIGNING ENVIRONMENTAL MEASURES TO REDUCE FERRIC OXIDE AT A MACHINE-BUILDING ENTERPRISE

2021 ◽  
Vol 3 (1) ◽  
pp. 094-098
Author(s):  
E. A. BORODKINA ◽  
◽  
E. E. KUXGAUZEN ◽  
S. V. BELKOVA ◽  
◽  
...  
Keyword(s):  
Negative Impact ◽  
Machine Building ◽  
Bag Filter ◽  
Aggregate State ◽  
Atmospheric Air ◽  
Conservation Measure ◽  
Economic Entity ◽  
Harmful Emissions ◽  
Environmental Measures

In this paper, we consider air pollution in the result of the activity of an economic entity. The classification of harmful emissions by aggregate state is given. The sources of negative impact on the atmospheric air, including the volume and mass of the resulting pollutants, are considered. It is proposed to develop a conservation measure by using a bag filter with pulse blowing.

Estimation of Filtering Velocity and Pressure Drop Parameters from Total Pressure Drop in a Multi-Compartment Bag Filter

2003 ◽  
Vol 29 (5) ◽  
pp. 701-706 ◽  
Author(s):  
Hidenori Ikeno ◽  
Yutaka Tada ◽  
Setsuro Hiraoka ◽  
Yusuke Shuto
Keyword(s):  
Pressure Drop ◽  
Total Pressure ◽  
Bag Filter ◽  
Total Pressure Drop

scholarly journals Aqueous solubility of Cr(VI) compounds in ferrochrome bag filter dust and the implications thereof

Water SA ◽  
2017 ◽  
Vol 43 (2) ◽  
pp. 298 ◽  
Author(s):  
S.P. Du Preez ◽  
J.P. Beukes ◽  
W.P.J. Van Dalen ◽  
P.G. Van Zyl ◽  
D Paktunc ◽  
...  
Keyword(s):  
Aqueous Solubility ◽  
Bag Filter ◽  
Filter Dust

scholarly journals Experimental study on production and emission characteristics of PM2.5 from industrial fluidized bed boilers

2020 ◽  
Vol 24 (5 Part A) ◽  
pp. 2665-2675
Author(s):  
Songsong Zhang ◽  
Qian Du ◽  
Guoli Qi
Keyword(s):  
Fluidized Bed ◽  
Removal Efficiency ◽  
Mass Concentration ◽  
Great Influence ◽  
Chemical Properties ◽  
Dust Removal ◽  
Dust Collector ◽  
Bag Filter ◽  
Physical And Chemical ◽  
Fluidized Bed Boilers

Particle size distributions, concentrations, morphological characteristics, and elemental compositions of eight fluidized bed boilers with different capacities and different dust collectors were determined experimentally. The PM2.5 particle concentration and mass concentration were monitored in real-time before and after the boiler dust collector by electric low pressure impactor, and the physical and chemical properties of PM2.5 were analyzed by membrane sampling. We found that the PM2.5 particle concentration produced by industrial fluidized bed boilers displayed bimodal distributions, peaking at 0.2 ?m and 0.76 ?m, the formed mechanism of these two parts particles is vaporization-condensation of mineral matter and residual ash particles and the adsorbent wear or tear. Mass concentration exhibits a single peak characteristic with a peak at 0.12 ?m. The removal efficiency for PM2.5 of dust collectors varies with different dust removal mechanisms. The electrostatic precipitator and bag filter have high dust removal efficiency, and the water film dust collector has low dust removal efficiency. The normal operation of the bag filter has a great influence on the dust removal efficiency. The physical and chemical properties of PM2.5 showed that the single-particle morphology was mainly composed of irregular particles, containing a small amount of solid spherical particles and more agglomerates. The content of Si and Al in PM2.5 elemental analysis is the highest, which decreases after a dust collector. Some fluidized bed boilers use desulfurization in the furnace, which has great influence on the mass concentration of Ca and S elements, and the lowest Hg content in trace elements, about a few ppm. <br><br><font color="red"><b> This article has been corrected. Link to the correction <u><a href="http://dx.doi.org/10.2298/TSCI200901242E">10.2298/TSCI200901242E</a><u></b></font>

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