Ruthenium-catalysed domino hydroformylation–hydrogenation–esterification of olefins

Author(s):  
Ricarda Dühren ◽  
Peter Kucmierczyk ◽  
Carolin Schneider ◽  
Ralf Jackstell ◽  
Robert Franke ◽  
...  

Aliphatic esters are made easily from acetic acid, olefins, and synthesis gas. In the presence of ruthenium–phosphine complexes novel domino-hydroformylation–hydrogenation–esterification proceeds in moderate to good yields.

1984 ◽  
Vol 39 (6) ◽  
pp. 525-530 ◽  
Author(s):  
Friednch Drawert ◽  
Ralf G. Berger ◽  
Rolf Godelmann ◽  
Susanne Collin ◽  
Wolfgang Barz

Photomixotrophic cell suspension cultures of Ruta graveolens were qualitatively and quantita­tively analyzed by gaschromatography and mass spectroscopy for volatile compounds. The terpenoid hydrocarbons geijerene and pregeijerene, the C9-C13 methylketones and a series of aliphatic esters, respectively, were found as main constituents. The esters consisted of acetic acid, 2-methylbutyric acid and 3-methylbutyric acid which were esterified with straight chain or branched C8-C11 alcohols. The data are discussed in comparison to previous studies on callus cultures.


ChemInform ◽  
1987 ◽  
Vol 18 (14) ◽  
Author(s):  
T. NAKAJO ◽  
K. SANO ◽  
S. MATSUHIRA ◽  
H. ARAKAWA

2016 ◽  
Vol 113 (14) ◽  
pp. 3773-3778 ◽  
Author(s):  
Peng Hu ◽  
Sagar Chakraborty ◽  
Amit Kumar ◽  
Benjamin Woolston ◽  
Hongjuan Liu ◽  
...  

In the quest for inexpensive feedstocks for the cost-effective production of liquid fuels, we have examined gaseous substrates that could be made available at low cost and sufficiently large scale for industrial fuel production. Here we introduce a new bioconversion scheme that effectively converts syngas, generated from gasification of coal, natural gas, or biomass, into lipids that can be used for biodiesel production. We present an integrated conversion method comprising a two-stage system. In the first stage, an anaerobic bioreactor converts mixtures of gases of CO2 and CO or H2 to acetic acid, using the anaerobic acetogen Moorella thermoacetica. The acetic acid product is fed as a substrate to a second bioreactor, where it is converted aerobically into lipids by an engineered oleaginous yeast, Yarrowia lipolytica. We first describe the process carried out in each reactor and then present an integrated system that produces microbial oil, using synthesis gas as input. The integrated continuous bench-scale reactor system produced 18 g/L of C16-C18 triacylglycerides directly from synthesis gas, with an overall productivity of 0.19 g⋅L−1⋅h−1 and a lipid content of 36%. Although suboptimal relative to the performance of the individual reactor components, the presented integrated system demonstrates the feasibility of substantial net fixation of carbon dioxide and conversion of gaseous feedstocks to lipids for biodiesel production. The system can be further optimized to approach the performance of its individual units so that it can be used for the economical conversion of waste gases from steel mills to valuable liquid fuels for transportation.


2020 ◽  
Vol 119 ◽  
pp. 108064
Author(s):  
Samundeeswari Mariappan Balasekaran ◽  
Adelheid Hagenbach ◽  
Frederic Poineau

1986 ◽  
Vol 15 (9) ◽  
pp. 1557-1560 ◽  
Author(s):  
Tetsuo Nakajo ◽  
Ken-ichi Sano ◽  
Shinya Matsuhira ◽  
Hironori Arakawa

2021 ◽  
Vol 333 ◽  
pp. 06002
Author(s):  
Intan Clarissa Sophiana ◽  
Tri Partono Adhi ◽  
Yogi Wibisono Budhi

The Natuna gas field is one of the largest natural gas reserves in Indonesia with estimated natural gas reserves of 222 TCF. However, until now, the use of Natuna gas is still hampered because of the very high CO2 content reaching 71%, while the methane content is around 28%. The dry reforming of methane (DRM) process is one of the potential ways to be applied for solving these problems to convert CH4 and CO2 to synthesis gas containing CO and H2 as a raw material that can be applied to manufacture as intermediate products or end products in the petrochemical industry such as acetic acid. The simulation of the acetic acid production was conducted by using ASPEN HYSYS v.10, considering mass and heat balances. The PengRobinson was applied for dry reforming of methane process. In order to produce 496.8 kmol/h of the acetic acid, the 500 kmol/h for each CH4 and CO2 were used as feed gas. The total energy required is 4.7 MMBtu per ton of acetic acid. The acetic acid has a purity of 99.4% with a concentration of 500 ppm methanol, and moisture content of 5,700 ppm.


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