Feasibility Study for Constructing and Operating a Facility to Manufacture Fuel Pellets from Cotton By-Products

2003 ◽  
Author(s):  
Greg A. Holt ◽  
James L. Simonton ◽  
Mario G. Beruvides ◽  
Ana Maria Canto
Keyword(s):  
Feasibility Study ◽  
Fuel Pellets ◽  
By Products

scholarly journals Performance Optimisation of Fuel Pellets Comprising Pepper Stem and Coffee Grounds through Mixing Ratios and Torrefaction

Energies ◽  
2021 ◽  
Vol 14 (15) ◽  
pp. 4667
Author(s):  
Sunyong Park ◽  
Hui-Rim Jeong ◽  
Yun-A Shin ◽  
Seok-Jun Kim ◽  
Young-Min Ju ◽  
...  
Keyword(s):  
Calorific Value ◽  
Basic Information ◽  
Spent Coffee Grounds ◽  
Mixing Ratios ◽  
Moisture Contents ◽  
Fuel Pellets ◽  
Coffee Grounds ◽  
Coffee Ground ◽  
Fuel Characteristics ◽  
By Products

Agricultural by-products have several disadvantages as fuel, such as low calorific values and high ash contents. To address these disadvantages, this study examined the mixing of agricultural by-products and spent coffee grounds, for use as a solid fuel, and the improvement of fuel characteristics through torrefaction. Pepper stems and spent coffee grounds were first dried to moisture contents of <15% and then combined, with mixing ratios varying from 9:1 to 6:4. Fuel pellets were produced from these mixtures using a commercial pelletiser, evaluated against various standards, and classified as grade A, B, or Bio-SRF. The optimal ratio of pepper stems to spent coffee grounds was determined to be 8:2. The pellets were torrefied to improve their fuel characteristics. Different torrefaction temperatures improved the mass yields of the pellets to between 50.87% and 88.27%. The calorific value increased from 19.9% to 26.8% at 290 °C. The optimal torrefaction temperature for coffee ground pellets was 230 °C, while for other pellets, it was 250 °C. This study provides basic information on the potential enhancement of agricultural by-products for fuel applications.

Removal of trihalomethanes from high organic matter water sources using aeration: a feasibility study

2020 ◽  
Vol 55 (2) ◽  
pp. 184-197
Author(s):  
Saeideh Mirzaei ◽  
Beata Gorczyca
Keyword(s):  
Organic Matter ◽  
Organic Carbon ◽  
Dissolved Organic Carbon ◽  
Feasibility Study ◽  
Distribution Systems ◽  
Water Age ◽  
Treated Water ◽  
Canadian Guideline ◽  
Viable Solution ◽  
By Products

Abstract In this study, diffused aeration was applied to remove trihalomethane (THM) compounds from chlorinated, treated water containing high dissolved organic carbon (DOC) of 6.8 ± 1.2 mg/L. Increasing air-to-water volumetric ratio (rA/W) from 16 to 39 enhanced total THM (TTHM) removal from 60 to 70% at 20 °C and from 30 to 50% at 4 °C. Although bromodichloromethane has lower Henry's law constant than chloroform (CF), it was removed by a higher degree than CF in some aeration trials. Albeit obtaining high removals in aeration, TTHM reformed, and their concentration surpassed the Canadian guideline of 100 ppb in about 24 hours at 20 °C and 40 hours at 10 °C in all attempted air-to-water ratios. The water age in the system investigated in this study varied from 48 hours in midpoint chlorine boosting stations to 336 hours in the nearest endpoint. This study showed that THM removal by aeration is not a viable solution to control the concentration of these disinfection by-products in high-DOC treated water and in distribution systems where water age exceeds 24 hours; unless, it is going to be installed at the distribution endpoints.

Agricultural utilization of lignosulfonates

Holzforschung ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Gerhild K. Wurzer ◽  
Hubert Hettegger ◽  
Robert H. Bischof ◽  
Karin Fackler ◽  
Antje Potthast ◽  
...  
Keyword(s):  
Paper Industry ◽  
Pulp And Paper Industry ◽  
Feed Additive ◽  
Complexing Agent ◽  
Fuel Pellets ◽  
Inorganic Substances ◽  
Binding Agents ◽  
Long Time ◽  
Renewable Material ◽  
By Products

Abstract Lignosulfonates (LSs) are by-products of the pulp and paper industry from pulping of lignocellulosic biomass according to the sulfite process. This renewable material already plays a role in low-value applications, such as binding agents for fuel, pellets, as a feed additive, or as a dispersant. Another possible field of application of this technical lignin type is agriculture. It is known that this eco-friendly and cheap material can improve soil quality, fertilizer efficacy and replace or decrease the use of potentially (eco)toxic organic or inorganic substances. The use of LS in agriculture and five main strategies for the implementation of LS in soil are discussed in this review: LS as a complexing agent with micronutrients, co-pelleting of LS with (macro)nutrients, capsule formation with LS for coating of fertilizers or pesticides, LS as a biostimulant, and ammonoxidation of LS. All five ways can be beneficial in fertilizer-related applications, either to slow down the release of nutrients or pesticides, to substitute harmful chemicals, or to inhibit nitrification and modify fertilizer behaviour. Nevertheless, application and long-time studies are often missing, and more research is required for generating products that are economically competitive to commercial bulk products.

scholarly journals A feasibility study of fiber solid foam based on food by products (Spent coffee – wheat bran)

2020 ◽  
Vol 17 (103) ◽  
pp. 67-81
Author(s):  
Elnaz Mialni ◽  
Neda Hashemi ◽  
Q.Ali Golimovehhed ◽  
Majid Hashemi
Keyword(s):  
Feasibility Study ◽  
Wheat Bran ◽  
Solid Foam ◽  
By Products

UTILIZATION OF COTTON GIN BY-PRODUCTS FOR THE MANUFACTURING OF FUEL PELLETS: AN ECONOMIC PERSPECTIVE

2004 ◽  
Vol 20 (4) ◽  
Author(s):  
G. A. Holt ◽  
J. L. Simonton ◽  
M. G. Beruvides ◽  
A. Canto
Keyword(s):  
Economic Perspective ◽  
Fuel Pellets ◽  
By Products ◽  
Cotton Gin

Use of pig by-products (bristles and hooves) as alternative protein raw material in fish feed: A feasibility study

Aquaculture ◽  
2017 ◽  
Vol 479 ◽  
pp. 265-272 ◽  
Author(s):  
F.G. Gachango ◽  
K.S. Ekmann ◽  
J. Frørup ◽  
S.M. Pedersen
Keyword(s):  
Feasibility Study ◽  
Raw Material ◽  
Fish Feed ◽  
Alternative Protein ◽  
By Products

Feasibility study for the production of biofuels from Brassicaceae spp. and Nicotiana tabacum oilseeds and from by-products or waste materials

2010 ◽  
Vol 150 ◽  
pp. 173-173
Author(s):  
C. Pirola ◽  
G. Carvoli ◽  
V. Ragaini ◽  
C.L. Bianchi ◽  
D.C. Boffito ◽  
...  
Keyword(s):  
Nicotiana Tabacum ◽  
Feasibility Study ◽  
Waste Materials ◽  
By Products
Sign in / Sign up

Export Citation Format

Share Document