scholarly journals Production of bioethanol from rice husk pretreated with alkalis and hydrolyzed with acid cellulase at pilot scale

2018 ◽  
Vol 1126 ◽  
pp. 012034
Author(s):  
A Cacua ◽  
J J Gelvez ◽  
D C Rodríguez ◽  
J W Parra
Keyword(s):  
Rice Husk ◽  
Pilot Scale

scholarly journals Energy Efficient Dryer with Rice Husk Fuel for Agriculture Drying

2015 ◽  
Vol 4 (1) ◽  
pp. 20-24 ◽  
Author(s):  
M. Djaeni ◽  
N. Asiah ◽  
S Suherman ◽  
A. Sutanto ◽  
A. Nurhasanah
Keyword(s):  
Rice Husk ◽  
Energy Efficient ◽  
Pilot Scale ◽  
Drying Process ◽  
Energy Usage ◽  
Drying Time ◽  
Heat Efficiency ◽  
Operational Temperature ◽  
Time And Energy ◽  
Fossil Fuel Energy

Energy usage is crucial aspect on agriculture drying process. This step spends about 70% of total energy in post harvest treatment. The design of efficient dryer with renewable energy source is urgently required due to the limitation of fossil fuel energy. This work discusses the performance of air dehumidification using rice husk fuel as heat source for onion, and paddy drying. Unlike conventional dryer, the humidity of air during the drying was dehumidified by adsorbent. Hence, the driving force of drying can be  kept high.  As consequences, the drying time and energy usage can be reduced. Here, the research was conducted in two step: laboratory and pilot scale tests. Results showed that the lowering air humidity with rice husk fuel has improved the energy efficiency. At operational temperature 60oC, the heat efficiency of 75%  was achieved. 

Pretreatment of rice husk in a pilot scale mill for further enzymatic hydrolysis

2016 ◽  
Vol 8 (3) ◽  
pp. 274-279 ◽  
Author(s):  
E. M. Podgorbunskikh ◽  
A. L. Bychkov ◽  
O. I. Lomovskii
Keyword(s):  
Enzymatic Hydrolysis ◽  
Rice Husk ◽  
Pilot Scale

Investigation of fuel gas generation in a pilot scale fluidized bed autothermal gasifier using rice husk

Fuel ◽  
2013 ◽  
Vol 111 ◽  
pp. 584-591 ◽  
Author(s):  
M.K. Karmakar ◽  
J. Mandal ◽  
S. Haldar ◽  
P.K. Chatterjee
Keyword(s):  
Fluidized Bed ◽  
Rice Husk ◽  
Pilot Scale ◽  
Gas Generation ◽  
Fuel Gas

scholarly journals Catalytic effect of domolite in the gasification process productivity and the syngas product value of the updraft gasification technology of rice husk

2018 ◽  
Vol 1 (6) ◽  
pp. 139-148
Author(s):  
Quyen Huynh ◽  
Nam Minh Hoang ◽  
Nhung Dinh Tran ◽  
Hung Viet Nguyen ◽  
Thuong Ngoc Ngo
Keyword(s):  
Rice Husk ◽  
Catalytic Effect ◽  
Pilot Scale ◽  
Utility Value ◽  
Research Results ◽  
Energy Value ◽  
Gasification Process ◽  
Product Value ◽  
Gasification Technology ◽  
Process Productivity

Improving the productivity of gasification process and its syngas product utility value has been carried out by applying the dolomite catalyst method. This research has been tested on pilot scale which is manufactured and installed based on the updraft gasification technology principle. Dolomite catalyst is mixed with rice husk. Research results showed that with 15 % w dolomite catalyst used and gasificated by is air with 3 m3/h flow, the gasification producvity is improved up to 23.45 % comprared with the case of without catalyst (7.76 %). The syngas productivity and its energy value is 67% and 3.36 MJ/Kg, respectively. The ratio of H2 and CO of syngas product is also improved. The syngas product is similar to syngas standard which could be directly used for gaz generator.

The Fouling Behavior of Rice Husk Ash in Fluidized-Bed Combustion. 2. Pilot-Scale and Full-Scale Measurements

2005 ◽  
Vol 19 (4) ◽  
pp. 1512-1519 ◽  
Author(s):  
Bengt-Johan Skrifvars ◽  
Patrik Yrjas ◽  
Tor Laurén ◽  
Jouni Kinni ◽  
Honghi Tran ◽  
...  
Keyword(s):  
Fluidized Bed ◽  
Rice Husk ◽  
Rice Husk Ash ◽  
Pilot Scale ◽  
Full Scale ◽  
Fluidized Bed Combustion

scholarly journals Solid State Anaerobic Digestion for Biogas Production from Rice Husk

2020 ◽  
Vol 202 ◽  
pp. 08005
Author(s):  
Hashfi Hawali Abdul Matin ◽  
Syafrudin Syafrudin ◽  
Suherman Suherman
Keyword(s):  
Rice Husk ◽  
Biogas Production ◽  
Pilot Scale ◽  
Bad News ◽  
Good News ◽  
Rice Husks ◽  
Anaerobic Conditions ◽  
Physical Treatment ◽  
Influence Of Temperature ◽  
Pre Treatment

Increased rice production in Indonesia not only brings good news socially and economically, but also brings bad news for environmental ecology. In each rice crop produces 50% rice straw and 50% grain. The grain is divided into two again, namely 80% rice and 20% rice husk. In 2018, counted the rice husk up to 10,379,625 tons, a fantastic number if cannot be managed properly so that it can pollute the environment. One alternative to deal with the high rice husk is through conversion to biogas. Biogas is an energy that is formed under anaerobic conditions with organic material so that it is also called renewable energy. The development of research on biogas production from rice husks based SS-AD has experienced a positive increase in hardness. Studies have been conducted on the pre-treatment to other influencing factors. But after the authors describe the latest development of biogas research from rice husk, there are still some variables that have not been tested such as physical treatment, the influence of temperature, pH and alkalinity. Based on this review, further research is needed to complete a number of variables that have not been carried out so that it is expected that the development of biogas production from rice husk based SS-AD can move toward larger scales such as pilot scale and industrial scale.

Upscaling of foam forming technology for pilot scale

TAPPI Journal ◽  
2019 ◽  
Vol 18 (8) ◽  
Author(s):  
JANI LEHMONEN ◽  
TIMO RANTANEN ◽  
KARITA KINNUNEN-RAUDASKOSKI
Keyword(s):  
Production Efficiency ◽  
Strength Loss ◽  
Pilot Scale ◽  
Foam Density ◽  
Forming Process ◽  
Production Scale ◽  
Forming Technology ◽  
Wet Pressing ◽  
Foam Forming ◽  
Board Industry

The need for production cost savings and changes in the global paper and board industry during recent years have been constants. Changes in the global paper and board industry during past years have increased the need for more cost-efficient processes and production technologies. It is known that in paper and board production, foam typically leads to problems in the process rather than improvements in production efficiency. Foam forming technology, where foam is used as a carrier phase and a flowing medium, exploits the properties of dispersive foam. In this study, the possibility of applying foam forming technology to paper applications was investigated using a pilot scale paper forming environment modified for foam forming from conventional water forming. According to the results, the shape of jet-to-wire ratios was the same in both forming methods, but in the case of foam forming, the achieved scale of jet-to-wire ratio and MD/CD-ratio were wider and not behaving sensitively to shear changes in the forming section as a water forming process would. This kind of behavior would be beneficial when upscaling foam technology to the production scale. The dryness results after the forming section indicated the improvement in dewatering, especially when foam density was at the lowest level (i.e., air content was at the highest level). In addition, the dryness results after the pressing section indicated a faster increase in the dryness level as a function of foam density, with all density levels compared to the corresponding water formed sheets. According to the study, the bonding level of water- and foam-laid structures were at the same level when the highest wet pressing value was applied. The results of the study show that the strength loss often associated with foam forming can be compensated for successfully through wet pressing.

Application of a Pilot-Scale Pulsed Electrocoagulation system to OCC-Based Paper Mill Effluent

TAPPI Journal ◽  
2009 ◽  
Vol 8 (3) ◽  
pp. 14-20 ◽  
Author(s):  
YUAN-SHING PERNG ◽  
EUGENE I-CHEN WANG ◽  
SHIH-TSUNG YU ◽  
AN-YI CHANG
Keyword(s):  
Water Quality ◽  
Quality Indicators ◽  
Paper Mill ◽  
Pilot Scale ◽  
Operating Conditions ◽  
Optimal Dosage ◽  
Water Quality Indicators ◽  
Paper Mill Effluent ◽  
Treated Effluent ◽  
True Color

Trends toward closure of white water recirculation loops in papermaking often lead to a need for system modifications. We conducted a pilot-scale study using pulsed electrocoagulation technology to treat the effluent of an old corrugated containerboard (OCC)-based paper mill in order to evaluate its treatment performance. The operating variables were a current density of 0–240 A/m2, a hydraulic retention time (HRT) of 8–16 min, and a coagulant (anionic polyacrylamide) dosage of 0–22 mg/L. Water quality indicators investigated were electrical con-ductivity, suspended solids (SS), chemical oxygen demand (COD), and true color. The results were encouraging. Under the operating conditions without coagulant addition, the highest removals for conductivity, SS, COD, and true color were 39.8%, 85.7%, 70.5%, and 97.1%, respectively (with an HRT of 16 min). The use of a coagulant enhanced the removal of both conductivity and COD. With an optimal dosage of 20 mg/L and a shortened HRT of 10 min, the highest removal achieved for the four water quality indicators were 37.7%, 88.7%, 74.2%, and 91.7%, respectively. The water qualities thus attained should be adequate to allow reuse of a substantial portion of the treated effluent as process water makeup in papermaking.

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