Co-production of dimethyl ether and methanol from CO2 hydrogenation: development of a stable hybrid catalyst

Tao, Jia-Lin; Jun, Ki‐Won; Lee, Kyu-Wan

doi:10.1002/1099-0739(200102)15:2<105::aid-aoc100>3.0.co;2-b

Cited by 37 publications

(4 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Sasol in South Africa and Shell in Malaysia applied syngas in liquid fuel production commercially . Methanol and DME, which are alternatives to gasoline and diesel fuels, can be obtained according to eqs –. , In addition, various bio-based products, such as alcohols and polyesters, can also be produced using syngas as a feed reactant. − …”

Section: Applicationsmentioning

confidence: 99%

“…381 Methanol and DME, which are alternatives to gasoline and diesel fuels, can be obtained according to eqs 27−30. 382,383 In addition, various bio-based products, such as alcohols and polyesters, can also be produced using syngas as a feed reactant. 384−386 For power generation, the operation system usually contains a biomass gasifier, combustion engine, combustion turbine, steam turbine, or fuel cell.…”

Section: Applicationsmentioning

confidence: 99%

See 1 more Smart Citation

Catalytic Conversion of Coal and Biomass Volatiles: A Review

et al. 2020

View full text Add to dashboard Cite

This paper presents a review of recent research on direct upgrading of coal/biomass volatiles into aromatics by catalytic pyrolysis and syngas by gasification with catalytic steam reforming. Coal/biomass valorization is considered an important part to fill up the depletion of modern fossil fuel resources. The catalytic pyrolysis process is a potential approach to improve coal tar/bio-oil quality by minimizing its undesirable properties (high viscosity, corrosivity, instability, etc.) and producing renewable fuels and high-value chemicals, such as aromatics (benzene, toluene, ethylbenzene, xylenes, etc.). Gasification reforming as a promising process for renewable energy utilization can produce H2-rich syngas. The produced syngas can be further synthesized to fuel and chemicals via Fischer–Tropsch synthesis. Thus, this study provides a comprehensive review of the research and development of conversion of coal and biomass volatiles in terms of technological types and catalysts. Aspects related to upgrading technology, the reactor type of catalytic pyrolysis and gasification, and the reaction mechanisms to specific products during the catalytic process are also discussed comprehensively. In particular, catalytic upgrading by fast pyrolysis involves a series of reactions, including deoxygenation, cracking, hydrocarbon pool mechanism, aromatization, and condensation, as well as desulfurization and denitrification in the gasification process. Some key points that are to be addressed for the established process of coal and biomass volatile upgrading may include finding multifunctional catalysts and reactor development for improving the efficiency. Expanding and enhancing knowledge about catalyst utilization and fundamental reaction mechanisms in the thermochemical catalytic conversion technologies of coal and biomass will play an important role in the generation of chemicals and carbon-neutral fuels.

show abstract

Section: Applicationsmentioning

confidence: 99%

Section: Applicationsmentioning

confidence: 99%

Catalytic Conversion of Coal and Biomass Volatiles: A Review

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Table 6 lists the catalysts employed for catalytic hydrogenation of CO 2 to dimethylether (DME) [4,[209][210][211][212][213][214]. DME could be synthesized as an alternative to methanol as the former material is a clean-burning substitute for diesel.…”

Section: Co 2 To Dimethyl Ethermentioning

confidence: 99%

Conversion of Carbon Dioxide into Several Potential Chemical Commodities Following Different Pathways - A Review

Ganesh

2013

MSF

View full text Add to dashboard Cite

This article reviews the literature related to the direct uses of CO2and its conversion into various value added chemicals including high energy density liquid fuels such as methanol. The increase in the direct uses of CO2and its conversion into potential chemical commodities is very important as it directly contributes to the mitigation of CO2related global warming problem. The method being followed at present in several countries to reduce the CO2associated global warming is capturing of CO2at its major outlets using monoethanolamine based solution absorption technique followed by storing it in safe places such as, oceans, depleted coal seams, etc., (i.e., carbon dioxide capturing and storing in safe places, CCS process). This is called as CO2sequestration. Although, the CCS process is the most understood and immediate option to mitigate the global warming problem, it is considerably expensive and has become a burden for those countries, which are practicing this process. The other alternative and most beneficial way of mitigating this global warming problem is to convert the captured CO2into certain value added bulk chemicals instead of disposing it. Conversion of CO2into methanol has been identified as one of such cost effective ways of mitigating global warming problem. Further, if H2is produced from exclusively water using only solar energy instead of any fossil fuel based energy, and is used to convert CO2into methanol there are three major benefits: i) it contributes greatly to the global warming mitigation problem, ii) it greatly saves fossil fuels as methanol production from CO2could be an excellent sustainable and renewable energy resource, and iii) as on today, there is no better process than this to store energy in a more convenient and highly usable form of high energy density liquid fuel. Not only methanol, several other potential chemicals and value added chemical intermediates can be produced from CO2. In this article, i) synthesis of several commodity chemicals including poly and cyclic-carbonates, sodium carbonate and dimethyl carbonate, carbamates, urea, vicinal diamines, 2-arylsuccinic acids, dimethyl ether, methanol, various hydrocarbons, acetic acid, formaldehyde, formic acid, lower alkanes, etc., from CO2, ii) the several direct uses of CO2, and iii) the importance of producing methanol from CO2using exclusively solar energy are presented, discussed and summarized by citing all the relevant and important references.

show abstract

“…(1), involves a large amount of water as a by-product. During the reaction, both methanol and water compete with each other for the same sites on the catalyst [15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Dimethyl Ether over Modified H-Mordenite Zeolites and Bifunctional Catalysts Composed of Cu/ZnO/ZrO2 and Modified H-Mordenite Zeolite in Slurry Phase

2008

View full text Add to dashboard Cite

Synthesis of dimethyl ether (DME) via methanol dehydration were investigated over various catalysts, and via direct CO hydrogenation over hybrid catalysts composed of Al-modified H-Mordenite zeolite and Cu/ZnO/ZrO 2 . H-Mordenite zeolite exhibited the highest activity in dehydration of methanol. However, its selectivity toward dimethyl ether was rather low. For this reason, the H-Mordenite was modified. Modification of zeolites was performed by wet impregnation method and considered catalysts were characterized by AAS, XRD and NH 3 -TPD analyses. Results of catalytic tests indicated that H-Mordenite modified with 8 wt% aluminum oxide was the best catalyst for synthesis of dimethyl ether from methanol, in which methanol conversion and DME selectivity were 99.8 and 96.8%, respectively, without noticeable change in catalyst stability. For direct synthesis of dimethyl ether from synthesis gas, hybrid catalysts were prepared by coprecipitation sedimentation method. It was found that optimum ratio of methanol synthesis catalyst to methanol dehydration catalyst is 2:1. In this case, CO conversion and DME selectivity were 64 and 78.8%, respectively, with good catalyst stability. Ultimately, it was concluded that the hybrid catalyst composed of Cu/ZnO/ ZrO 2 and Al-modified H-Mordenite zeolite is an appropriate catalyst for direct synthesis of dimethyl ether from the synthesis gas.

show abstract

Co-production of dimethyl ether and methanol from CO2 hydrogenation: development of a stable hybrid catalyst

Cited by 37 publications

References 7 publications

Catalytic Conversion of Coal and Biomass Volatiles: A Review

Catalytic Conversion of Coal and Biomass Volatiles: A Review

Conversion of Carbon Dioxide into Several Potential Chemical Commodities Following Different Pathways - A Review

Synthesis of Dimethyl Ether over Modified H-Mordenite Zeolites and Bifunctional Catalysts Composed of Cu/ZnO/ZrO2 and Modified H-Mordenite Zeolite in Slurry Phase

Contact Info

Product

Resources

About