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US 2016/0107963 A1Published application
Recycling gas to heat the hydrodesulphurization section
AssigneeSaudi Basic Industries Corporation
InventorsShezada Khurram, Ali Essa Al-Hammad
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Abstract
In one aspect, the present invention provides a method for recycling natural gas during a reformer startup in a methanol plant. The method comprises recycling natural gas from a point before entry into the natural gas saturator where the natural gas is recycled until the natural gas reaches a desired temperature.
Claims29
A method comprising:
- recycling natural gas during a reformer startup in a methanol plant,
- wherein the natural gas is recycled from a point before entry into a natural gas saturator,
- wherein the natural gas is recycled until the natural gas is heated to a desired temperature.
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A method for recycling natural gas during a reformer startup in a methanol plant comprising:
- a) suctioning natural gas by a suction drum;
- b) boosting natural gas by a natural gas booster downstream of the suction drum;
- c) heating a steam reformer to heat a reformer feed gas downstream of the natural gas booster;
- d) heating a hydrogenerator downstream of the steam reformer;
- e) heating a sulfur adsorber downstream of the hydrogenerator;
- f) recycling natural gas by a recirculation line downstream of the sulfur adsorber and upstream of the reformer;
- g) cooling the recycled natural gas by a heat exchanger downstream of the sulfur adsorber;
- and
- h) suctioning the cooled recycled natural gas into the suction drum downstream of the heat exchanger;
- wherein the natural gas is recycled until the reformer feed gas reaches a desired temperature.
7 more elements
Dependencies are inferred from the claim text.