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Facility ID: 59107MNTNSEXXON
Facility Name and Address: MONTANA SULPHUR & CHEMICAL CO 627 EXXONMOBIL RD BILLINGS, MT 59101 Parent Company: Industry: Other Basic Inorganic Chemical Manufacturing (325180) Chemical: Hydrogen sulfide Reports: View TRI Facility profile report for this facility View TRI Form R submissions by this facility |
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Production Related Waste Management for Selected Chemical
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Pollution Prevention Activities for Selected Chemical
Reporting Year | Section 8.10: Newly Implemented Source Reduction Activity | Section 8.10: Methods to Identify Activity | Section 8.11: Optional Pollution Prevention Information* |
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2022 |
Source Reduction: Source Reduction - Implementation of the Flare Gas Treatment Unit The purpose of the FGTU is to treat certain hydrogen sulfide bearing gases, including acid gas, prior to traditional flaring. The gas addressed by the FGTU is material that has been traditionally sent to flare as necessary without further sulfur-recovery treatment. In the event of malfunction or non-availability of this unit, such gases would still go directly to flare. The additional equipment and operation is aimed at reducing intermittent flare emissions of sulfur dioxide, particularly during certain periods of startup/shutdown and malfunction. Sulfur material captured during such periods is stored on-site as amine salts for subsequent treatment and resource recovery in the existing fuel gas treatment facility (MSCC's amine unit) and MSCC's sulfur recovery plant during normal operation of those portions of the facility. The FGTU uses an amine treatment contactor to remove H2S from selected gases during these situations prior to flaring, along with liquid storage. Storage allows deferred processing and high-rate operation. Consequently, successful operation of the FGTU reduces SO2 (and H2S) emissions otherwise arising as a result from flaring. |
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2021 |
Source Reduction: Source Reduction - Implementation of the Flare Gas Treatment Unit The purpose of the FGTU is to treat certain hydrogen sulfide bearing gases, including acid gas, prior to traditional flaring. The gas addressed by the FGTU is material that has been traditionally sent to flare as necessary without further sulfur-recovery treatment. In the event of malfunction or non-availability of this unit, such gases would still go directly to flare. The additional equipment and operation is aimed at reducing intermittent flare emissions of sulfur dioxide, particularly during certain periods of startup/shutdown and malfunction. Sulfur material captured during such periods is stored on-site as amine salts for subsequent treatment and resource recovery in the existing fuel gas treatment facility (MSCC's amine unit) and MSCC's sulfur recovery plant during normal operation of those portions of the facility. The FGTU uses an amine treatment contactor to remove H2S from selected gases during these situations prior to flaring, along with liquid storage. Storage allows deferred processing and high-rate operation. Consequently, successful operation of the FGTU reduces SO2 (and H2S) emissions otherwise arising as a result from flaring. |
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2020 |
Source Reduction: Source Reduction - Implementation of the Flare Gas Treatment Unit The purpose of the FGTU is to treat certain hydrogen sulfide bearing gases, including acid gas, prior to traditional flaring. The gas addressed by the FGTU is material that has been traditionally sent to flare as necessary without further sulfur-recovery treatment. In the event of malfunction or non-availability of this unit, such gases would still go directly to flare. The additional equipment and operation is aimed at reducing intermittent flare emissions of sulfur dioxide, particularly during certain periods of startup/shutdown and malfunction. Sulfur material captured during such periods is stored on-site as amine salts for subsequent treatment and resource recovery in the existing fuel gas treatment facility (MSCC's amine unit) and MSCC's sulfur recovery plant during normal operation of those portions of the facility. The FGTU uses an amine treatment contactor to remove H2S from selected gases during these situations prior to flaring, along with liquid storage. Storage allows deferred processing and high-rate operation. Consequently, successful operation of the FGTU reduces SO2 (and H2S) emissions otherwise arising as a result from flaring. |
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2019 | Other Environmental Practices - Implementation of the Flare Gas Treatment Unit The purpose of the FGTU is to treat certain hydrogen sulfide bearing gases, including acid gas, prior to traditional flaring. The gas addressed by the FGTU is material that has been traditionally sent to flare as necessary without further sulfur-recovery treatment. In the event of malfunction or non-availability of this unit, such gases would still go directly to flare. The additional equipment and operation is aimed at reducing intermittent flare emissions of sulfur dioxide, particularly during certain periods of startup/shutdown and malfunction. Sulfur material captured during such periods is stored on-site as amine salts for subsequent treatment and resource recovery in the existing fuel gas treatment facility (MSCC's amine unit) and MSCC's sulfur recovery plant during normal operation of those portions of the facility. The FGTU uses an amine treatment contactor to remove H2S from selected gases during these situations prior to flaring, along with liquid storage. Storage allows deferred processing and high-rate operation. Consequently, successful operation of the FGTU reduces SO2 (and H2S) emissions otherwise arising as a result from flaring. | ||
2018 |
Source Reduction: Source Reduction - Implementation of the Flare Gas Treatment Unit The purpose of the FGTU is to treat certain hydrogen sulfide bearing gases, including acid gas, prior to traditional flaring. The gas addressed by the FGTU is material that has been traditionally sent to flare as necessary without further sulfur-recovery treatment. In the event of malfunction or non-availability of this unit, such gases would still go directly to flare. The additional equipment and operation is aimed at reducing intermittent flare emissions of sulfur dioxide, particularly during certain periods of startup/shutdown and malfunction. Sulfur material captured during such periods is stored on-site as amine salts for subsequent treatment and resource recovery in the existing fuel gas treatment facility (MSCC's amine unit) and MSCC's sulfur recovery plant during normal operation of those portions of the facility. The FGTU uses an amine treatment contactor to remove H2S from selected gases during these situations prior to flaring, along with liquid storage. Storage allows deferred processing and high-rate operation. Consequently, successful operation of the FGTU reduces SO2 (and H2S) emissions otherwise arising as a result from flaring. |
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2017 | Other Environmental Practices - Implementation of the Flare Gas Treatment Unit The purpose of the FGTU is to treat certain hydrogen sulfide bearing gases, including acid gas, prior to traditional flaring. The gas addressed by the FGTU is material that has been traditionally sent to flare as necessary without further sulfur-recovery treatment. In the event of malfunction or non-availability of this unit, such gases would still go directly to flare. The additional equipment and operation is aimed at reducing intermittent flare emissions of sulfur dioxide, particularly during certain periods of startup/shutdown and malfunction. Sulfur material captured during such periods is stored on-site as amine salts for subsequent treatment and resource recovery in the existing fuel gas treatment facility (MSCC's amine unit) and MSCC's sulfur recovery plant during normal operation of those portions of the facility. The FGTU uses an amine treatment contactor to remove H2S from selected gases during these situations prior to flaring, along with liquid storage. Storage allows deferred processing and high-rate operation. Consequently, successful operation of the FGTU reduces SO2 (and H2S) emissions otherwise arising as a result from flaring. | ||
2016 |
Other Environmental Practices: Recycling - Implementation of the Flare Gas Treatment Unit The purpose of the FGTU is to treat certain hydrogen sulfide-bearing gases, including acid gas, prior to traditional flaring. The gas addressed by the FGTU is material that has been traditionally sent to flare as necessary without further sulfur-recovery treatment. In the event of malfunction or non-availability of this unit, such gases would still go directly to flare. The additional equipment and operation is aimed at reducing intermittent flare emissions of sulfur dioxide, particularly during certain periods of startup/shutdown and malfunction. Sulfur material captured during such periods is stored on-site as amine salts for subsequent treatment and resource recovery in the existing fuel gas treatment facility (MSCC's amine unit) and MSCC's sulfur recovery plant during normal operation of those portions of the facility. The FGTU uses an amine treatment contactor to remove H2S from selected gases during these situations prior to flaring, along with liquid storage. Storage allows deferred processing and high-rate operation. Consequently, successful operation of the FGTU reduces SO2 (and H2S) emissions otherwise arising as a result from flaring. |
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2014 | Other Environmental Practices - The facility operates a sulfur recovery plant, SuperClaus process and catalytic incinerator process which together serve to convert mixtures containing hydrogen sulfide to elemental sulfur product and to oxidize remaining de minimis levels of the compound to sulfur dioxide at high efficiency. The facility also operates a flare gas treatment unit which has the effect of reducing amounts of this compound reaching the flare. | ||
2013 | Other Environmental Practices - The facility has a Flare Gas Treatment Unit (FGTU) in service since late in 2012, which has the effect of reducing the amount of H2S reaching the flare(s) for disposal. |