Mixed biochar obtained by the co-pyrolysis of shrimp shell with corn straw: co-pyrolysis characteristics and its adsorption capability

In the present study, catalytic pyrolysis characteristics of corn straw pellet were studied in biomass pyrolysis test bench. The effect of content of CaO added in biomass pellet on pyrolysis products was investigated. The results showed that: with the increase of CaO content, the yield of tar decreased ,and the yield of char and gas increased. Among gas compositions, the volume percentage of CO、H2、CH4 increased, while the volume percentage of CO2 decrease greatly. The Calorific values of the gas increase distinctly. The results have significant theoretical guidance on the application of biomass pellets in biomass gasification equipments.

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Experimental Study of Impact of Biomass Pellet Size on the Pyrolysis Products

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.641-642.756 ◽

2013 ◽

Vol 641-642 ◽

pp. 756-759

Author(s):

Ai Jun Xue ◽

Ji Hong Pan ◽

Mao Cheng Tian

Keyword(s):

Experimental Study ◽

Test Bench ◽

Biomass Gasification ◽

Biomass Pyrolysis ◽

Corn Straw ◽

Pellet Size ◽

Pyrolysis Products ◽

Pyrolysis Characteristics ◽

Pellet Diameter ◽

Biomass Pellet

In the present study, pyrolysis characteristics of corn straw pellet were studied in biomass pyrolysis test bench. The influence of pellet diameter on pyrolysis products was investigated. The results showed that: with the increase of pellet diameter, the yield of tar decreased ,and the yield of char and gas increased, and char density increased too. The results has significant theoretical guidance on the biomass gasification and preparation of char using biomass pellets.

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In-depth experimental study of pyrolysis characteristics of raw and cooking treated shrimp shell samples

Renewable Energy ◽

10.1016/j.renene.2019.02.119 ◽

2019 ◽

Vol 139 ◽

pp. 730-738 ◽

Cited By ~ 2

Author(s):

Pengchao Zhang ◽

Hongyun Hu ◽

Hua Tang ◽

Yuhan Yang ◽

Huan Liu ◽

...

Keyword(s):

Experimental Study ◽

Pyrolysis Characteristics ◽

Shrimp Shell

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Study on Pyrolysis Characteristics of Corn Straw

International Journal of Chemical Reactor Engineering ◽

10.1515/1542-6580.2420 ◽

2011 ◽

Vol 9 (1) ◽

Author(s):

Zhengqi Li ◽

Zhichao Chen ◽

Chunlong Liu ◽

Zhiyong Hu ◽

Wei Zhao ◽

...

Keyword(s):

Activation Energy ◽

Mass Loss ◽

Loss Ratio ◽

Corn Straw ◽

Heating Rates ◽

Pyrolysis Characteristics ◽

Ratio Curve ◽

Step Model ◽

One Step ◽

The One

Pyrolysis characteristics of corn straw samples (corn stalks skins, corn stalks cores, corn bracts and corn leaves) was performed using thermogravimetric analysis Three heating rates (20, 50 and 100 k min-1) were applied with a final temperature of 900°C. The maximum pyrolysis rates increased with the heating rate increasing and the temperature at the peak pyrolysis rate also increased. The activation energy and the temperature interval of pyrolysis for these samples had only slightly increasing at different heating rates. The one-step model was used to obtain the pre-exponential and the activation energy. Through calculating, we obtain the mass loss ratio curve. The three models have similar results. The one-step model is simpler and suitable for the simulation of the mass loss ratio curve.

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Mengembangkan Ayam Buras Dan Sapi Potong Untuk Meningkatkan Pendapatan Petani Kabupaten Maros

JATI EMAS (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat) ◽

10.36339/je.v3i2.248 ◽

2019 ◽

Vol 3 (2) ◽

pp. 172

Author(s):

Sri - Purwanti ◽

Syamsuddin Nompo ◽

Laily Agustina ◽

Muh. Nur Hidayat

Keyword(s):

Beef Cattle ◽

Rice Straw ◽

Dry Season ◽

Farm Management ◽

Family Ownership ◽

Cattle Population ◽

Corn Straw ◽

Livestock Feed ◽

Coaching Training ◽

Meat And Eggs

The activities conducted in Maros regency Tanralili district Purnakarya village in chickens and beef cattle groups Cedde Jaya. The main source of livestock feed cows during the dry season are dry forage, rice straw, corn straw and hay crops of nuts which happened to be planted at the time of drought. Besides, leaf Gamal is also a main feed in dry season. Number of cattle per family ownership only 2-3 head extensively maintained. Range chicken as well as extensive maintenance, ownership on average 2-5 chicken each household group. To increase the productivity of cattle, the team provides counseling, coaching, training and mentoring as well as providing some main of facilities such as cattle shed, biogas digester, planting banana. Results are expected in the presence of activities is the avaibility of green forage mainly during the dry season, so that the cattle population will increase, the biogas as a fuel alternative to kerosin and LPG gas, liquid and solid fertilizer from biogas by-product process, the increasing population of chicken qualified (meat and eggs as well as the day old chick). Besides the problem of production is also done on the farm management. The activities is expected that will increase the incomes of farmers further improve the welfare of Maros regency. For the sustainability of the program it is necessary supervision and guidance are routinely performed by the related department along with the college.

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Orange peels and shrimp shell used in a fermentation process to produce an aqueous extract with bioherbicide potential to weed control

Biocatalysis and Agricultural Biotechnology ◽

10.1016/j.bcab.2021.101947 ◽

2021 ◽

Vol 32 ◽

pp. 101947

Author(s):

Bianca D'arck Melo Cavalcante ◽

Thamarys Scapini ◽

Aline Frumi Camargo ◽

Alessandro Ulrich ◽

Charline Bonatto ◽

...

Keyword(s):

Weed Control ◽

Aqueous Extract ◽

Fermentation Process ◽

Orange Peels ◽

Shrimp Shell

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Construction of the Cellulose Nanofibers (CNFs) Aerogel Loading TiO2 NPs and Its Application in Disposal of Organic Pollutants

Polymers ◽

10.3390/polym13111841 ◽

2021 ◽

Vol 13 (11) ◽

pp. 1841

Author(s):

Kang Li ◽

Xuejie Zhang ◽

Yan Qin ◽

Ying Li

Keyword(s):

High Efficiency ◽

Sol Gel ◽

Cellulose Nanofibers ◽

Three Dimensional ◽

Good Mechanical Property ◽

Polar Groups ◽

Dimensional Network ◽

Natural Polysaccharide ◽

Valuable Method ◽

Adsorption Capability

Aerogels have been widely used in the adsorption of pollutants because of their large specific surface area. As an environmentally friendly natural polysaccharide, cellulose is a good candidate for the preparation of aerogels due to its wide sources and abundant polar groups. In this paper, an approach to construct cellulose nanofibers aerogels with both the good mechanical property and the high pollutants adsorption capability through chemical crosslinking was explored. On this basis, TiO2 nanoparticles were loaded on the aerogel through the sol-gel method followed by the hydrothermal method, thereby the enriched pollutants in the aerogel could be degraded synchronously. The chemical cross-linker not only helps build the three-dimensional network structure of aerogels, but also provides loading sites for TiO2. The degradation efficiency of pollutants by the TiO2@CNF Aerogel can reach more than 90% after 4 h, and the efficiency is still more than 70% after five cycles. The prepared TiO2@CNF Aerogels have high potential in the field of environmental management, because of the high efficiency of treating organic pollutes and the sustainability of the materials. The work also provides a choice for the functional utilization of cellulose, offering a valuable method to utilize the large amount of cellulose in nature.

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Physical and mechanical properties of unsaturated polyester resin matrix from recycled PET (based PG ) with corn straw fiber

Journal of Applied Polymer Science ◽

10.1002/app.51305 ◽

2021 ◽

pp. 51305

Author(s):

Nora Abigail Wilson García ◽

Jorge Luis Almaral Sánchez ◽

Ramón Álvaro Vargas Ortiz ◽

Abel Hurtado Macías ◽

Nelly Flores Ramírez ◽

...

Keyword(s):

Mechanical Properties ◽

Polyester Resin ◽

Unsaturated Polyester ◽

Physical And Mechanical Properties ◽

Unsaturated Polyester Resin ◽

Resin Matrix ◽

Corn Straw ◽

Recycled Pet

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A Hybrid Methodology to Minimize Freshwater Consumption during Shrimp Shell Waste Valorization Combining Multi-Contaminant Pinch Analysis and Superstructure Optimization

Polymers ◽

10.3390/polym13111887 ◽

2021 ◽

Vol 13 (11) ◽

pp. 1887

Author(s):

Viviana Quintero ◽

Arturo Gonzalez-Quiroga ◽

Angel Darío Gonzalez-Delgado

Keyword(s):

Process Integration ◽

Preliminary Design ◽

Water Network ◽

Hybrid Strategy ◽

Shrimp Shell ◽

Optimal Value ◽

Shell Waste ◽

Programming Techniques ◽

Shrimp Shell Waste ◽

Freshwater Consumption

The conservation and proper management of natural resources constitute one of the main objectives of the 2030 Agenda for Sustainable Development designed by the Member States of the United Nations. In this work, a hybrid strategy based on process integration is proposed to minimize freshwater consumption while reusing wastewater. As a novelty, the strategy included a heuristic approach for identifying the minimum consumption of freshwater with a preliminary design of the water network, considering the concept of reuse and multiple pollutants. Then, mathematical programming techniques were applied to evaluate the possibilities of regeneration of the source streams through the inclusion of intercept units and establish the optimal design of the network. This strategy was used in the shrimp shell waste process to obtain chitosan, where a minimum freshwater consumption of 277 t/h was identified, with a reuse strategy and an optimal value of US $5.5 million for the design of the water network.

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Low-Cost Organic Adsorbents for Elemental Mercury Removal from Lignite Flue Gas

Energies ◽

10.3390/en14082174 ◽

2021 ◽

Vol 14 (8) ◽

pp. 2174

Author(s):

Marta Marczak-Grzesik ◽

Stanisław Budzyń ◽

Barbara Tora ◽

Szymon Szufa ◽

Krzysztof Kogut ◽

...

Keyword(s):

Flue Gas ◽

Low Cost ◽

Elemental Mercury ◽

Mercury Content ◽

Flue Gases ◽

Mercury Removal ◽

Gas Purification ◽

Gas Temperature ◽

Corn Straw ◽

Flue Gas Purification

The research presented by the authors in this paper focused on understanding the behavior of mercury during coal combustion and flue gas purification operations. The goal was to determine the flue gas temperature on the mercury emissions limits for the combustion of lignites in the energy sector. The authors examined the process of sorption of mercury from flue gases using fine-grained organic materials. The main objectives of this study were to recommend a low-cost organic adsorbent such as coke dust (CD), corn straw char (CS-400), brominated corn straw char (CS-400-Br), rubber char (RC-600) or granulated rubber char (GRC-600) to efficiently substitute expensive dust-sized activated carbon. The study covered combustion of lignite from a Polish field. The experiment was conducted at temperatures reflecting conditions inside a flue gas purification installation. One of the tested sorbents—tire-derived rubber char that was obtained by pyrolysis—exhibited good potential for Hg0 into Hg2+ oxidation, resulting in enhanced mercury removal from the flue. The char characterization increased elevated bromine content (mercury oxidizing agent) in comparison to the other selected adsorbents. This paper presents the results of laboratory tests of mercury sorption from the flue gases at temperatures of 95, 125, 155 and 185 °C. The average mercury content in Polish lignite was 465 μg·kg−1. The concentration of mercury in flue gases emitted into the atmosphere was 17.8 µg·m−3. The study analyzed five low-cost sorbents with the average achieved efficiency of mercury removal from 18.3% to 96.1% for lignite combustion depending on the flue gas temperature.

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