Preparation of syngas by reforming of biological glycerol on charcoal catalyst

Qi, Wei; Xu, Qiucheng; Yan, Yunfei

doi:10.1002/ep.12388

Cited by 3 publications

(4 citation statements)

References 29 publications

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“…[182,183] Recently, the glycerol reforming on charcoal has been studied in a fixed-bed reactor. [184] The results indicated that the charcoal not only had a high activity for this process but could also decrease the cost of syngas production. The syngas yield, glycerol conversion, and H 2 /CO ratio could reach 1.37 m 3 kg −1 , 76.8%, and 3.04, respectively, for a feed with the steam/carbon molar ratio of 4 at 800 °C and a weight hourly space velocity of 2 h −1 .…”

Section: Glycerol and Biomassmentioning

confidence: 95%

Monolithic fiber/foam-structured catalysts: beyond honeycombs and micro-channels

et al. 2023

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Heterogeneous catalysis plays a pivotal role in the current chemical and energy vectors production. Notably, to fully utilize the intrinsic activity and selectivity of a catalyst, the chemical reactor has to be designed and operated optimally to achieve enhanced heat/mass transfer, well-defined contact time of reactants, uniform flow pattern, and high permeability. Structured catalysts are a promising strategy to overcome the major drawbacks encountered in the traditional packed-bed reactor technology due to the improved hydrodynamics in combination with enhanced heat/mass transfer. Newly emerged fiber/foamsubstrates, with an entirely open 3D network structure, bring distinct advantages over the honeycomb and micro-channel contacting methods, including free radial diffusion, eddymixing driven heat/mass transfer, large area-to-volume ratio, and high contacting efficiency. However, how to place the nanocatalysts onto the fiber/foam-substrates is a challenging problem because the commercial washcoating method has great limitations such as the nonuniformity and easy exfoliation of coatings. This review discusses the newly developed non-dipcoating methods for the fiber/foam-structured catalysts and their promising applications in the strongly exo-/endo-thermic and/or high throughput reaction processes.

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Section: Glycerol and Biomassmentioning

confidence: 95%

Monolithic fiber/foam-structured catalysts: beyond honeycombs and micro-channels

et al. 2023

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“…1 and Eq. 2 respectively [27]. More H 2 is produced as a result of the process's excessive steam oxidizing CO into CO 2 [43].…”

Section: Steam Reforming Of Glycerolmentioning

confidence: 99%

“…Large-scale biodiesel producers can purify crude glycerol for other industrial use, unfortunately, the process of purifying crude glycerol is costly for small-scale producers [27]. However, the varying price and the increase in production of glycerol indicate that it is no longer economically feasible to use glycerol as an end product in a situation where supply and demand are balanced [28].…”

Section: Introductionmentioning

confidence: 99%

“…The forecast for glycerol production for the year 2020 was estimated to be around 41.9 billion liters (as shown in Fig. 1) with an accompanying market price of 80% purity costs between $0.09 and $0.20 per kilogram of crude glycerol [27,30]. Also, since an average of 1000 kilotons of glycerol are generated globally each year, there are limited market information available for it [28].…”

Section: Introductionmentioning

confidence: 99%

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Techno-economic analysis of methanol synthesis from syngas derived from steam reforming of crude glycerol

Kgwedi

Seedat

Fajimi

et al. 2023

Biomass Conv. Bioref.

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Due to the large amount of crude glycerol produced as a by-product by the biodiesel industry, alternative technologies for converting glycerol to value-added fuels such as syngas have been proposed. By employing four main processes, the syngas could further be used to produce methanol. The first process is steam reforming (STR) where the crude glycerol is converted into syngas. The next step is a three-unit pressure swing adsorption (PSA) system which is employed to condition the syngas into the required stoichiometric ratio. The final two process are the methanol synthesis and methanol purification processes. The effects of STR temperature, steam-to-glycerol ratio (SGR), methanol synthesis temperature and pressure were all investigated. The results obtained shows that 0.29 kgMeOH/kgCG can be obtained through this process at STR of 650 ℃, SGR of 9, and methanol synthesis temperature and pressure of 250 ℃ and 80 bar respectively. In addition, a methanol production plant capacity of 6.8 tonnes/hr of crude glycerol feed for a 20-year plant life was investigated. The result from the economic analysis carried out shows that production of methanol from glycerol is economically feasible with net present value (NPV), return on investment, (ROI), discounted payback period (DPBP) and net production cost (NPC) of $74.2 million, 17%, 4.59 years, and 85₵/kgMeOH respectively. The sensitivity analysis results show that the revenue from sales of methanol and byproducts (hydrogen and methane), the manufacturing cost, the cost of raw materials, as well as fixed capital investment (FCI) were the most sensitive economic parameters.

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Assessment of biogas and syngas production from sugarcane vinasse: A sustainable alternative for the production of renewable fuels

Tonial,

Paraiso,

de Matos Jorge

2023

Env Prog and Sustain Energy

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The increasing demand for renewable energy sources as a substitute for fossil fuels has driven researchers to develop sustainable processes for biomass energy reuse in biofuel production. Based on this premise, the present study aimed to simulate the production process of synthesis gas (syngas) from vinasse, a by‐product of the sugar and alcohol industry, highlighting the applicability of this gas in transitioning toward a more renewable and sustainable energy future. The simulation was conducted in four distinct stages using the Aspen HYSYS® software. The first stage involved obtaining hydrated ethanol from sugarcane juice, followed by anaerobic digestion of vinasse to produce biogas. The third stage involved purifying the biogas to obtain biomethane. Finally, the simulation of steam methane reforming was performed to generate syngas. The modeling and simulation results demonstrated the feasibility of the process, as it generated 20.68 Nm3 of biogas (~55% vol CH4 and 45% vol CO2) per 1 Nm3 of vinasse, corresponding to 11.66 Nm3 of biomethane (~96.5% mol CH4), which aligns with national regulatory standards and the literature presented. Regarding syngas, both evaluated configurations yielded satisfactory results. The first configuration resulted in syngas with an H2/CO molar ratio of three, making it a viable source of pure hydrogen and a raw material for biofuel production, such as dimethyl ether and methanol. The second configuration, with an H2/CO molar ratio of two, holds great potential for its application in the synthesis of liquid fuels (Fischer‐Tropsch), serving as a direct substitute for gasoline, diesel, and jet fuel.

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Preparation of syngas by reforming of biological glycerol on charcoal catalyst

Cited by 3 publications

References 29 publications

Monolithic fiber/foam-structured catalysts: beyond honeycombs and micro-channels

Monolithic fiber/foam-structured catalysts: beyond honeycombs and micro-channels

Techno-economic analysis of methanol synthesis from syngas derived from steam reforming of crude glycerol

Assessment of biogas and syngas production from sugarcane vinasse: A sustainable alternative for the production of renewable fuels

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