Propylene Oxide

Trent, David L.

doi:10.1002/0471238961.1618151620180514.a01.pub2

Cited by 22 publications

(34 citation statements)

References 125 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The reaction mixture of the first step passes a separator to remove the remaining gases and is fed into the saponification reactor [40]. The dehydrochlorination to propylene oxide after mixing with lime or NaOH is rapid [60]. Propylene oxide is quickly steam-stripped from the brine solution to avoid the hydrolyzation to 1,2-propanediol [40].…”

Section: Process Descriptionmentioning

confidence: 99%

See 1 more Smart Citation

Impact of the chlorine value chain on the demand response potential of the chloralkali process

et al. 2020

View full text Add to dashboard Cite

Renewable sources of energy supply an increasing share to the electricity mix although they show much more fluctuations than conventional energy sources. Hence, net stability and availability represent very large challenges. Demand response can positively contribute to the solution of this issue as large electricity consumers adapt their consumption to the available electricity. In the past, chloralkali electrolysis has been suggested as such a large consumer. Unfortunately, its main product, chlorine, cannot be easily stored in large amounts, so that downstream processes have to operate based on a fluctuating feed. This work reviews the processes within the chlorine value chain, determines the most promising ones for flexibilisation based on their chlorine consumption, and analyses these processes in more detail to assign them to one of four flexibility categories. It is shown that 45 % of the theoretical potential could be used for demand response right away. Highlights: • A novel approach to evaluate the flexibility of chemical processes is proposed. • The flexibility potential of the whole chlorine value chain is assessed. • The chlorine-consuming processes relevant for demand response are identified. • Subsequent processes limit demand response potential of chloralkali process. • The dichloroethane and the chloroacetic acid route have the highest potential.

show abstract

Section: Process Descriptionmentioning

confidence: 99%

“…Propylene oxide is quickly steam-stripped from the brine solution to avoid the hydrolyzation to 1,2-propanediol [40]. This operation is carefully controlled to prevent stripping unreacted chlorohydrin [60]. Based on propene, the selectivity of the overall process for propylene oxide varies between 87 % and 90 % [33].…”

Section: Process Descriptionmentioning

confidence: 99%

Impact of the chlorine value chain on the demand response potential of the chloralkali process

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Propylene oxide (PO) is an important monomer in chemical industry due to the presence of highly reactive oxyranic group, which lead to many different organic products under the appropriate conditions. For this reason, PO is currently being used mainly for the synthesis of polyurethane foams, resins and propylene glycol, being its worldwide production about 7.5 million tons per year, and this market is annually growing ~ 4-5% [1,2]. However, although the most convenient production process for PO synthesis would be the direct oxidation of propylene with oxygen [3], results in this direction have been poor [4] and the development of safe and low contaminating propylene oxide synthesis process is still a matter of study.…”

Section: Introductionmentioning

confidence: 99%

One-pot two-step process for direct propylene oxide production catalyzed by bi-functional Pd(Au)@TS-1 materials

Prieto

Palomino

Díaz

et al. 2016

Applied Catalysis A: General

View full text Add to dashboard Cite

Different bi-functional materials (Pd(Au)@TS-1) based on metallic nanoparticles supported onto active nanocrystalline titanium silicalite (TS-1) zeolites were synthesized, characterized and used as recyclable heterogeneous catalysts for direct propylene oxide production from hydrogen, oxygen and propylene through one-pot two-step consecutive process. These catalysts allowed carrying out the combined reaction where metallic nanoparticles catalyzed the formation of in situ H 2 O 2 that was the necessary intermediate for propylene epoxidation catalyzed by active TS-1 nanocrystalline support. Several variables were considered such as use of supercritical CO 2 conditions, modifiable content of metallic species, and presence of additional co-solvents, surface acidity inhibitors and H 2 O 2 stabilizers. Reusability and stability of the bi-functional catalyst was showed through consecutive catalytic cycles.

show abstract

“…1−3 Some noteworthy PO derivatives are polyether polyols (polyurethane industry), propylene glycol (food, drug, and automotive industries), and glycol ethers (protective coatings, cleaners). 1 Thus, it is consistently in demand, driving the chemical process industry to search for more cost-effective and environmentally friendly technologies for its production. 3 Direct gas-phase epoxidation of propylene to PO by molecular oxygen using heterogeneous catalysts is considered to be the most desirable route to resolve the challenges of the established processes:…”

Section: Introductionmentioning

confidence: 99%

Copper–Manganese Mixed Metal Oxide Catalysts for the Direct Epoxidation of Propylene by Molecular Oxygen

Seubsai

Kahn

Zohour

et al. 2015

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

Cu−Mn mixed metal oxide (MMO) catalysts doped with NaCl were synthesized using combustion synthesis technique with a variety of fuels for the direct gas-phase epoxidation of propylene with molecular oxygen. The catalyst structure consisted of Mn 2 O 3 and Cu 1+x Mn 2−x O 4 crystals. The catalyst crystallinity, primarily influenced by the combustion synthesis fuel choice and calcination temperature, has been found to be of particular importance in affecting the selectivity of the epoxidation reaction. The optimum catalyst composition was 10−20 mol % Cu in Mn doped with 0.1−0.2 mol % NaCl. It exhibited 30−37% propylene oxide selectivity and 1.3−1.5% propylene conversion.

show abstract

Propylene Oxide

Cited by 22 publications

References 125 publications

Impact of the chlorine value chain on the demand response potential of the chloralkali process

Impact of the chlorine value chain on the demand response potential of the chloralkali process

One-pot two-step process for direct propylene oxide production catalyzed by bi-functional Pd(Au)@TS-1 materials

Copper–Manganese Mixed Metal Oxide Catalysts for the Direct Epoxidation of Propylene by Molecular Oxygen

Contact Info

Product

Resources

About