Methods for Producing a Fuel Gas Stream
First Claim
1. A method for producing a fuel gas stream, comprising:
- flowing a raw gas stream through a suction scrubber to form a feed gas stream;
compressing the feed gas stream to form a compressed gas stream;
cooling the compressed gas stream in a cooler to produce a cooled gas stream;
feeding the cooled gas stream into a gas treatment system, using a turboexpander, to produce a conditioned gas and a waste stream;
heating the conditioned gas in a heat exchanger, wherein the conditioned gas is a superheated, sweetened gas;
burning the conditioned gas in a turbine generator; and
mixing the waste stream into the raw gas stream upstream of the suction scrubber.
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Abstract
Methods and systems for dynamically planning a well site are provided herein. Methods include flowing a raw gas stream though a suction scrubber to form a feed gas stream and compressing the feed gas stream to form a compressed gas stream. Methods include cooling the compressed gas stream in a cooler to produce a cooled gas stream. Methods include feeding the cooled gas stream into a gas treatment system, using a turboexpander, to produce a conditioned gas and a waste stream. Methods include heating the conditioned gas in a heat exchanger, where the conditioned gas is a superheated, sweetened, gas. Methods also include burning the conditioned gas in a turbine generator and mixing the waste stream into the raw gas stream upstream of the suction scrubber.
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Citations
33 Claims
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1. A method for producing a fuel gas stream, comprising:
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flowing a raw gas stream through a suction scrubber to form a feed gas stream; compressing the feed gas stream to form a compressed gas stream; cooling the compressed gas stream in a cooler to produce a cooled gas stream; feeding the cooled gas stream into a gas treatment system, using a turboexpander, to produce a conditioned gas and a waste stream; heating the conditioned gas in a heat exchanger, wherein the conditioned gas is a superheated, sweetened gas; burning the conditioned gas in a turbine generator; and mixing the waste stream into the raw gas stream upstream of the suction scrubber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system for producing a fuel gas stream, comprising
a suction scrubber to form a feed gas stream from a raw gas stream; -
a compressor to form a compressed gas stream from the feed gas stream; a cooling water system to cool the compressed gas stream to produce a cooled gas stream; a gas treatment system, comprising an expansion device and a low temperature separation step, to remove contaminants from the cooled gas stream to produce a fuel gas and a waste stream, wherein the waste stream is mixed into the raw gas stream upstream of the suction scrubber; a heat exchanger to superheat the fuel gas to produce a superheated, sweetened gas; and a turbine generator to combust the superheated, sweetened gas. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A method for producing a fuel gas from a compressed natural gas, comprising:
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flowing a raw natural gas through a suction scrubber to form a natural gas feed; compressing the natural feed gas to form a compressed natural gas; cooling the compressed natural gas in a cooler to produce a cooled natural gas; feeding the cooled natural gas into a gas treatment system, comprising a low-temperature separator, to produce a natural gas stream and a waste stream; heating the natural gas stream in a heat exchanger to form a superheated, sweetened natural gas; combusting the superheated, sweetened natural gas in a turbine generator for use as an energy source; and mixing the waste stream into the raw natural gas located upstream of the suction scrubber. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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Specification