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Conversion of synthesis gas from biomass to liquid …

N2 - A novel catalytic process for biomass gasification at 773-873 K with high energy efficiency was developed. A cellulose was used as the model compound of biomass, and the performance of the catalysts was compared with that of dolomite and non-catalysts in batch- and continuous-feeding fluidized bed reactor. In reaction tests with various catalysts, Rh/CeO2 had a higher performance than other catalysts, but also showed deactivation during the reaction which was attributed to the sintering of the CeO2 support. A commercial steam-reforming catalyst also displayed high activity, but was deactivated due to carbon deposition. Rh/CeO2/SiO2 gave higher C-conversion to gas and was more stable than Rh/CeO2. The gasification using the Rh/CeO2/SiO2 catalyst produced a higher yield of synthesis gas at much lower temperature and with higher stability.

A novel catalytic process for biomass gasification at 773-873 K with high energy efficiency was developed. A cellulose was used as the model compound of biomass, and the performance of the catalysts was compared with that of dolomite and non-catalysts in batch- and continuous-feeding fluidized bed reactor. In reaction tests with various catalysts, Rh/CeO2 had a higher performance than other catalysts, but also showed deactivation during the reaction which was attributed to the sintering of the CeO2 support. A commercial steam-reforming catalyst also displayed high activity, but was deactivated due to carbon deposition. Rh/CeO2/SiO2 gave higher C-conversion to gas and was more stable than Rh/CeO2. The gasification using the Rh/CeO2/SiO2 catalyst produced a higher yield of synthesis gas at much lower temperature and with higher stability.

Synthesis gas from biomass can be produced and utilized in different ways

biomass-generated synthesis gas…

T1 - Highly efficient production of synthesis gas by catalytic gasification of biomass at low reaction temperature

New processes
For the production of ethanol from cellulosic feedstock, two main processes are under evaluation: biochemical [Figure 3a] and thermochemical [Figure 3b]. In the first—the biochemical process—biomass is broken down to sugars using enzymatic and/or chemical pretreatment processes and then converted to ethanol via fermentation. This process is similar to the production of first-generation ethanol because cellulosic biomass contains sugars as well. However, these sugars are much harder to release than those in starchy biomass are, and some are difficult to ferment. A secondary product of this process is lignin, which can be burned to produce heat and power or can be converted to other fuels and by-products. In the second, biofuels (and other bioproducts) can also be produced thermochemically from any form of carbon containing biomass. In this approach, feedstock is gasified at high temperature to convert biomass into syngas (CO and H2) which is then converted through various synthesis processes into bioethanol or biodiesel. This method is particularly important because as much as one third of cellulosic biomass—the lignin-rich parts—cannot be easily converted biochemically. At present, the total energy input needed for the production process may still be high, but in some cases, the biomass feedstock can provide most of the energy. Net CO2 emissions fromligno-cellulosic ethanol can therefore be almost 70% lower than from gasoline or first-generation bioethanol. This value could reach 100% if electricity co-generated using the by-product lignin displaced electricity from gas- or coal-fired power plants. Another very interesting thermochemical conversion process is based on pyrolysis and very intensively studied by several parties. The thermochemical biomass conversion process is complex, and it uses components, configurations, and operating conditions that are similar to petroleum refining. Consequentially, companies from the oil and gas field are also active in the development of advanced biofuels.

Heat and pressure-based chemical reactions that produce energy. Through gasification (heating biomass by partial oxidation to produce synthesis gas) and pyrolysis (heating biomass in the absence of oxygen to produce liquid oil), biomass feedstocks can be converted to alcohol and hydrocarbon fuels, chemicals, and power.

Chemical Composition of Biomass Syngas, Coal Syngas, …

Figure 2 shows possible synthetic routes and products that could be made from biomass in a biorefinery. The routes and products that follow each of the main initial processes, fermentation, gasification and pyrolysis are described below.

18/08/2013 · One of the CHRISGAS project objectives is to study the shift catalysts in biomass-generated synthesis gas

* A high-efficiency gasification reactor that converts up to 85% of carbon in biomass feedstocks into energy-rich synthesis gas.* A wet electrostatic precip

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Comparison of biomass syngas with coal syngas and natural gas


Biorefineries - Essential Chemical Industry

AB - A novel catalytic process for biomass gasification at 773-873 K with high energy efficiency was developed. A cellulose was used as the model compound of biomass, and the performance of the catalysts was compared with that of dolomite and non-catalysts in batch- and continuous-feeding fluidized bed reactor. In reaction tests with various catalysts, Rh/CeO2 had a higher performance than other catalysts, but also showed deactivation during the reaction which was attributed to the sintering of the CeO2 support. A commercial steam-reforming catalyst also displayed high activity, but was deactivated due to carbon deposition. Rh/CeO2/SiO2 gave higher C-conversion to gas and was more stable than Rh/CeO2. The gasification using the Rh/CeO2/SiO2 catalyst produced a higher yield of synthesis gas at much lower temperature and with higher stability.

Online Conference Programme - European Biomass …

– To promote commercialisation of biomass gasification (BMG) to produce fuel and synthesis gases that can be subsequently converted to substitutes for fossil fuel based energy products and chemicals, and lay the foundation for secure and sustainable energy supply;

Gas Processing | Modular Gas Plants | Honeywell UOP

Nitrogen+Syngas provides unrivalled technical and market coverage of synthesis gas and its derivatives – on the nitrogen side, ammonia and downstream products, urea, nitric acid, ammonium nitrate and UAN – as well as hydrogen, methanol and gas-, biomass- and coal-to-liquid technologies

Gasoline synthesis | Process | Haldor Topsoe

Another way to produce propene is via methanol (produced from biomass via synthesis gas), which is an example of the MTO (Methanol To Olefins) process. (Olefin is the older name for the homologous series, alkenes). Methanol can be converted into high purity ethene and propene via dimethyl ether (Figure 3, routes 10 and 9). Methanol vapour is passed over alumina at ca 600 K. An equilibrium mixture of methanol, dimethyl ether and steam is produced, containing about 25% methanol:

SynGas Technology, LLC | Biomass Gasification …

Hydrogen within synthesis gas formed by gasification of biomass, can be converted into (Figure 2, route 6), by addition of nitrogen from air, and is used mainly to make .

Synthesis Gas Biorefinery | SpringerLink

Strategic environmental, health, and safety (EHS) consulting firm focused on providing businesses with targeted advice and cost-effective solutions that enhance value and increase competitive advantage. Direct experience in environmental permitting and compliance programs for new technologies including biomass to syngas conversion, Integrated Biorefineries, and synthetic diesel production. Cost effective development of SPCC Plans, LDAR programs, Risk Management Programs, and customized environmental regulatory tracking. We help our clients resolve the most difficult and urgent EHS problems so their businesses can move forward with improved risk management and operational performance.

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