Evaluation of selected properties of briquettes from recovered paper and board

Abstract

Brožek M. (2015): Evaluation of selected properties of briquettes from recovered paper and board. Res. Agr. Eng., 61: 66-71.Worldwide increasing energy demand is today permanently covered by a majority of non-renewable energy sources, namely by coal, crude oil and natural gas. This causes the rapid decline of their reserves and the time gets near when they will be run out. Therefore in the last years the exploitation of renewable energy sources has been permanently preferred. One of alternative fuel forms is fuel on the basis of paper waste. In this paper the results of tests are published, which were carried out using six sorts of recovered paper and board (group and grade 1.05, 1.06, 2.02, 2.05, 2.07 and 2.08 according to CSN EN 643:2002), pressed into the form of briquettes. During the tests following briquettes parameters were watched: moisture content, ash amount, gross calorific value, length and diameter, weight, density, rupture force and mechanical durability. It was proved that briquettes made from recovered paper and board compared with briquettes from wood waste are of high density, high mechanical durability and for their rupture, relatively high force is necessary. But at the same time they have high ash amount and low gross calorific value.

Bamboo Fiber and Sugarcane Skin as a Bio-Briquette Fuel

“…Thus, it can be concluded that fibrous materials have significant potential for bio-briquette production. In addition, the overall evaluation of both tested materials proved satisfactory when compared with other published data [72][73][74].…”

Briquetting of sugarcane bagasse as a proper waste management technology in Vietnam

“…Previously published researches proved σ of bio-briquette fuel from bamboo fibre and sugarcane skin to be equal to 143.3 N∙mm -1 and 46.5 N∙mm -1 , respectively (Brunerová et al, 2018). Other studies proved the following results of σ bio-briquette fuel produced from different WB: “Jatoba” ( Hymenaea courbaril ) tropical hardwood - 47.05 3 N∙mm -1 (Chiteculo et al, 2018); empty poppy pods – 58.73 N∙mm -1 ; wheat husk – 44.18 N∙mm -1 (Brunerová et al, 2017a); plane tree chips – 176.1 N∙mm -1 (Brožek, 2016); waste paper – 32 N∙mm -1 ; and waste cardboard – 153 N∙mm -1 (Brožek, 2015). It is notable, that the observed level of σ (150.82 N∙mm -1 for bagasse bio-briquettes) occurs at a high level, thus, it can be positively evaluated as a successful result which proves the high mechanical quality of sugarcane bagasse bio-briquette fuel.…”

The Effect of Moisture of the Raw Material on the Properties Briquettes for Energy Use

“…from wood waste (chips, shavings, sawdust, dust, bark), straw, coal, paper, cellulose, tobacco etc. are mostly utilized energetically (by combustion) (Basore, 1929;Punko and Gavrilovich, 2009;Plíštil et al, 2004;Brožek et al, 2012;Sheridan and Berte, 1959;Brožek, 2015a;2015b). After its compression the waste from combustible materials, e.g.…”