Production of Nitrogen and Phosphorus containing Products in the Fischer-Tropsch-Synthesis

Description

The Fischer-Tropsch synthesis is an important process to convert coal, natural gas and biomass to

a variety of hydrocarbon products and oxygenates of different chain length. These products mainly

find use as transportation fuels including petrol jet fuel and diesel as well as special waxes.

In this modified Fischer-Tropsch process valuable nitrogen or phosphorous containing products

of varying chain length are produced via co-feeding of suitable gases such as ammonia. These

nitrogen-containing products include amines but also nitriles, amides and formamides.

Amines and nitriles are important base chemicals and they are typically produced from

oxygenates precursors which themselves are derived from olefins. This process therefore

eliminates the use of a two step process. Similarly phosphorous containing compounds can be

produced. Moreover, the formation of oxygenates including carboxylic acids which are undesired

products of the synthesis can be fully suppressed with the modified process. Notably this can be

achieved with no or tolerable loss of catalyst activity.

Advantages

• Can be incorporated in existing Fischer-Tropsch plants/ units without catalyst modification

(iron based catalysts are best suited)

• AllowsflexibleoperationofFischer-Tropschplants/unitsineither“fuels”or“chemicals”mode

• Production of valuable chemicals not traditionally obtained in the Fischer-Tropsch synthesis

such as nitrogen and phosphorous containing compounds

• One-step synthesis of nitrogen andphosphorous containing compounds insteadof two-step

process

• Suppressionofoxygenateformationincludingcarboxylicacids

• Possibility to selectively convert oxygenates including glycerine to valuable nitrogen and

phosphorous containing compounds

An invention of:

Carl von Ossietzky Universität Oldenburg

together with University of Cape Town

Sector:

Petrochemistry

Keywords:

Fischer-Tropsch-Synthesis, Selectivity,

Co-feeding, nitrogen and phosphorous

containing compounds

Intellectual Property Rights:

PCT application

GCC application

Offer UOL 118:

Licence / Sale

Production of Nitrogen and Phosphorus containing Products in the Fischer-Tropsch-Synthesis

Benefit

• ImprovementofselectivityofvaluablechemicalsinFischer-Tropschsynthesis

• Enablestoreactquicklyonchangingmarketconditions(“demanddrivenproduction”)

• EnablestooperateanexistingFischer-Tropschplantmoreefficiently

State of Development

The new process has been tested in bench scale. Integration in existing plants and adaption of

process parameters are needed.

Field of use

Therehasbeenincreasinginterestworldwideintheproductionofhydrocarbonliquidsforthefuel

marketinrecentyears.VariousGas-to-liquid(GtL)andCoal-to-liquid(CtL)plantsareinoperation

andmorewill comeonline in thenear future. Inaddition theconversionofBiomass into liquid

(BiomasstoLiquid,BtL) isbecoming increasingly important. InthissituationtheFischer-Tropsch-

Technology plays a central role in all strategies. The synthesis of hetero-atom containing compounds

opensanewwaytonon-fossilbasedfeedstock.

Target Groups

An ideal commercial partner to use this modified process will be a company that wants to get

intothe"XtL"businesswithfocusonchemicalproductionoracompanythatisalreadyinthe"XtL"

business,butwithan interest inmakinguseof thepotentialof theFischer-Tropschsynthesis to

produce highly valuable nitrogen and phosphorous containing compounds. It is also to those who

want to selectively convert oxygenates including glycerine to nitrogen and phosphorous containing

products. Moreover, catalysts manufactures who may improve and maximise the performance of

catalysts for the modified process will have an interest in this process.

This invention

is marketed by:

InnoWi GmbH

Fahrenheitstraße 1

28359 Bremen

Tel.: 0421- 96 00 7 - 0

mail@innowi.de

www.innowi.de

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