Back to results
US 2017/0233662 A1Published application
Saturator and method for reusing water from a fischer-tropsch reactor
AssigneesShell Interationale Research Maatschappij B.V., Shell Oil Company
InventorsGerald SPRACHMANN, Johan Peter DEN BREEJEN, Ruben SMIT, Matthias BEHN
Life of this patent
Estimating the term…
Abstract
The present invention relates to a saturator. The present invention further relates to a method for reusing a waste water stream from a Fischer-Tropsch reactor. The invention further relates to system for recycling waste water from a Fischer-Tropsch reactor preferably within a gas-to-liquids (GTL) plant.
Claims15
A method for recycling waste water of a Fischer-Tropsch reactor comprising the steps of:
- a. Operating a gas saturator comprising a catalyst bed for converting oxygenates at a temperature ranging from 100-300° C. and at a pressure in the range of 1-100 barg;
- b. Providing during operation of the saturator, waste water comprising oxygenates from the Fischer-Tropsch reactor to the top of the catalyst bed;
- c. Providing hydrogen containing gas to the gas saturator such that the oxygenates from the waste water and the hydrogen contact the catalyst in the catalyst bed counter-currently such that at least part of the oxygenates are converted into hydrocarbons;
- d. Providing a feedstock gas to the gas saturator such that it moves through the catalyst bed counter-currently compared to the oxygenates.
1 more element
A gas saturator for providing water to a feed gas, comprising a vessel that is provided with at least:
- i. An inlet for a feed gas stream;
- ii. An inlet for a hydrogen containing gas stream;
- iii. An inlet for at least one (first) waste water stream from a Fischer-Tropsch reactor, comprising oxygenates;
- iv. An outlet for a gas mixture stream comprising feed gas, water and hydrocarbons;
- and
- v. An outlet for a second waste water stream comprising oxygenates;
- wherein the vessel of the saturator is provided with a catalyst for converting oxygenates into hydrocarbons.
4 more elements
Dependencies are inferred from the claim text.