Topic
Biogas
About: Biogas is a research topic. Over the lifetime, 28571 publications have been published within this topic receiving 498545 citations.
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TL;DR: In this paper, a steady state simulation model for gasification has been developed using Aspen Plus, which can be used as a predictive tool for optimization of the gasifier performance.
Abstract: Steady state simulation model for gasification has been developed using Aspen Plus. The model can be used as a predictive tool for optimization of the gasifier performance.The Gasifier has been modeled in three stages. In first stage moisture content of biomass feed is reduced. In second stage biomass is decomposed into its elements by specifying yield distribution. In third stage gasification reactions have been modeled using Gibbs free energy minimization approach. The simulation results are compared with the experimental results obtained through hybrid biomass gasifier. In the simulation study, the operating parameters like Temperature, Equivalence Ratio (ER), Biomass Moisture Content and Steam Injection have been varied over wide range and the effect of these parameters on syngas composition, High Heating Value (HHV) and Cold Gas Efficiency (CGE) has been investigated. Temperature increases the production of CO and H2. Increasing ER decreases the production of CO and H2 which decreases the CGE. Biomass moisture content is an important parameter affecting the heating value of the gas. Steam injection favors hydrogen production. The performance of the simulated gasifier has been compared using experimental data for Municipal Solid Waste (MSW), Food Waste (FW) and Poultry Waste (PW).
259 citations
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TL;DR: In this paper, the potential of microalgae as feedstock for methane production from a process technical and economic point of view was evaluated, based on the premises of achievable up-concentration from 0.2-0.6 kg m(-3) to 20-60 kg dry matter (DM) m(3) and an effective bio-methanation of the concentrate at a loading rate of 20 kg DM m (-3) d(-1).
259 citations
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TL;DR: In-depth analysis of operational and environmental parameters and bacterial community structure indicated the presence of three potential clusters in anaerobic digestion, determined by total ammonia concentration, free ammonia concentration and temperature, and characterized by an increased relative abundance of Bacteroidales, Clostridiales and Lactobacillales, respectively.
259 citations
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TL;DR: In this article, the authors compare the life cycle environmental performance of liquefied natural gas (LNG), LNG, biogas (LBG), methanol and bio-methanol.
259 citations
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TL;DR: Up-flow anaerobic sludge blanket (UASB) seems to be a suitable process for the treatment of poultry manure wastewater and the liquid fraction of hen manure, due to its ability to maintain a sufficient amount of active biomass.
259 citations