Storage & Vessel Tank Degassing Solutions in Dallas

Which Tank Degassing Contractor Serves Dallas and North Texas Facilities?

Envent Corporation has cleared storage tanks, pressure vessels, reactors, and marine vessels for refineries, chemical plants, terminals, and midstream facilities across the United States and Canada since 1992. The company holds a 0.0 TRIR safety record and meets EPA BACT, MACT, and state air quality standards on every project. Project-level regulatory documentation, emissions data, and compliance certifications are all available on the Compliance section.

For Dallas-area facilities, all work runs under Texas Commission on Environmental Quality (TCEQ) Chapter 115 and applicable Title V permit conditions. Envent Corporation also meets air permit requirements set by the South Coast Air Quality Management District (SCAQMD) Rule 1149 and the Louisiana Department of Environmental Quality (LDEQ), which matters if your company operates facilities across Texas, California, or Louisiana. VOC and hazardous air pollutant destruction runs at 99.9%+ efficiency on every project.

” They provided timely communication and, with the support of their teams, contributed to a safe Turnaround. Their quick response to events helped us maintain our commitments to safety and the environment. I would not hesitate to recommend them to lead crews on other jobs.”

Area Technical Manager at Irving Oil

“They deliver exceptional performance, over and beyond our expectations contractually.”

S&H Superintendent at BP

Based on this experience, I am comfortable recommending Envent Corporation for any degassing, vapor control, or related services. Their technical capability and consistent performance make them a dependable service provider.

Senior Project Engineer, Valero Houston Refinery

Envent Corporation completed their scope ahead of schedule and under budget. Their planning, resource management, and execution met the needs of the project.

Senior Project Engineer, Valero Houston Refinery

Safety remained a consistent focus during the project. Envent Corporation’s approach to identifying and addressing potential risks contributed to a safe work environment for personnel.

Senior Project Engineer, Valero Houston Refinery

Envent Corporation mobilized promptly and reached the required degas threshold within 18 hours of startup, prior to any tank washing or cleaning.

Senior Project Engineer, Valero Houston Refinery

Envent Corporation demonstrated professionalism and provided reliable engineering and operational support throughout the job.

Senior Project Engineer, Valero Houston Refinery

Which Tanks and Vessels Can Envent Corporation Degas at Your Dallas Facility?

Envent Corporation handles vapor clearance for the full range of industrial storage tanks and process vessels at Dallas-area refineries, terminals, and chemical plants. Before any crew mobilizes to your facility, the engineering team reviews your vessel type, product history, internal configuration, and site access conditions to plan the work correctly. Every project is run to meet Texas Commission on Environmental Quality (TCEQ) air permit requirements and your maintenance schedule.

Complete Vapor Control & Environmental Services for Alberta Industrial Facilities

Atmospheric Storage Tanks

  • Above-ground tanks holding crude oil, gasoline, diesel, ethanol, and naphtha
  • Fixed-roof cone tanks across a wide range of capacities
  • External floating-roof tanks (EFRTs) and internal floating-roof tanks (IFRTs)
  • Horizontal cylindrical and low-profile tanks

Pressure Vessels & Spheres

  • LPG spheres for propane, butane, and mixed NGLs
  • Bullet tanks and horizontal pressure vessels in refining and chemical operations
  • Butadiene, propylene, and ethylene storage for high-reactivity compounds
  • Ammonia refrigeration vessels at industrial and chemical facilities

Marine & Transportation

  • Crude oil tankers and product barges
  • Chemical parcel tankers
  • Railcars and ISO containers
  • Vacuum trucks and transport trailers

Specialized Vessels

  • Chemical plant storage silos and day tanks
  • Wastewater treatment aerators and clarifiers
  • Underground storage tanks (UST) during decommissioning
  • Landfill gas collection systems

For marine-specific vapor control work at Dallas-area terminals and ports, Envent Corporation’s Marine Vapor Recovery service covers vessel degassing operations for crude oil tankers, product barges, and chemical parcel tankers across North America.

What Emission Control Standards Does Envent Corporation Meet on Dallas Projects?

Vapor destruction on every Dallas-area project runs at 99.9%+ destruction removal efficiency on volatile organic compounds and hazardous air pollutants. All work meets EPA Best Available Control Technology (BACT) standards under 40 CFR Part 60 and Maximum Achievable Control Technology (MACT) requirements under 40 CFR Part 63. For facilities operating under a Title V permit in Texas, all emission destruction data is documented and formatted for TCEQ reporting requirements.

How Does Envent Corporation's EMTOS Perform on Dallas Tank Projects?

VOC AND HAP DESTRUCTION:

  • Vapor Processing Range
    Covers mid-size product tanks through large-diameter crude oil storage tanks at Dallas-area facilities.
  • Primary Project Types
    VOC abatement, HAP destruction, and standard tank degassing at refineries, terminals, and chemical plants.
  • Regulatory Compliance
    All work meets TCEQ Chapter 115 and EPA BACT standards under 40 CFR Part 60.

TYPICAL DEGASSING PERFORMANCE:

  • 150-ft diameter storage tank:
    Cleared to below 1% LEL for a gasoline product tank at 500,000 gallon capacity.
  • 250-ft diameter storage tank:
    Cleared to below 1% LEL for a crude oil tank at 2 million barrel capacity.

Actual project timelines vary based on product vapor pressure, ambient temperature, and residual heel volume

How Does Envent Corporation's EMECS Handle High-Volume Dallas Tank Projects?

HIGH-THROUGHPUT PROJECT COVERAGE:

  • Vapor Processing Range
    High-volume configurations covering large-diameter tank degassing at Dallas-area terminals and refineries.
  • Burner Input
    20-77 MMBTU/hr
  • Primary Project Types
    High-throughput refill operations, large-diameter tank degassing, and refinery turnaround multi-vessel projects.

SPECIALIZED CAPABILITY: During rapid tank refilling operations at Dallas facilities, Envent Corporation runs continuous vapor destruction while product loading proceeds, at rates up to 20,000 barrels per hour. This removes the waiting period between degassing completion and refill initiation, keeping your turnaround on schedule. Planned outages and multi-vessel turnarounds at Dallas-area facilities are covered under Envent Corporation’s Refinery Turnaround Vapor Control service.

How Does Envent Corporation Track and Document Dallas Tank Degassing Projects?

REAL-TIME MONITORING:

  • Continuous temperature recording throughout the full duration of your project
  • Flame ionization detector (FID) and photoionization detector (PID) readings for vapor concentration at your tank
  • Vapor flow measurement and totalizing across all active project phases
  • Lower explosive limit (LEL) monitoring at the tank vapor space
  • Chamber pressure and oxygen concentration tracked throughout operations

DOCUMENTATION DELIVERABLES:

  • Emissions summary report with total VOC mass destroyed
  • Temperature data logs confirming 1,400°F+ operation throughout
  • Destruction efficiency calculations and verification
  • Regulatory compliance certification for your permit file
  • Submittal packages formatted for EPA, TCEQ, and local agency requirements

Which Regulatory Standards Does Envent Corporation Meet on Dallas Projects?

Storage & Vessel Tank Degassing

Envent Corporation’s engineering team reviews federal, state, and local air quality requirements for your Dallas facility before any equipment arrives on site. Permit conditions are confirmed and a site-specific degassing plan is in place before mobilization, keeping your project clear of work delays, permit violations, and agency enforcement actions.

Envent Corporation covers compliance for:

  • Federal Standards
    Benzene NESHAP / BWON, Refinery Sector Rule (RSR), Refinery MACT I and II, and Chemical Sector MACT.
  • H2S Management
    Reviewed and approved under the EPA Alternative Monitoring Plan (AMP) for H2S on applicable projects.
  • Regional Air Districts
    SCAQMD Rule 1149, TCEQ Chapter 115, CARB Vapor Recovery, BAAQMD Reg 8-40, LDEQ, NJDEP, and Washington DOE.
  • International
    Canadian CEPA Registry and provincial air emissions standards for facilities operating across the border.

How Does Envent Corporation Approach Vapor Control Efficiency on Dallas Projects?

EMTOS and EMECS Project Performance for Dallas Facilities

Envent Corporation is a U.S. EPA Natural Gas STAR Partner, recognized for mobile vapor recovery technology used across refining, terminal, and chemical plant operations. For Dallas-area facilities, Envent Corporation deploys EMTOS and EMECS units to handle high-volume vapor streams from the most demanding industrial tank and vessel projects, including sour service, high-reactivity compounds, and multi-vessel refinery turnarounds.

Aboveground-Storage-Tank-and-Pipeline-Degassing

Envent Corporation has handled tank degassing at Dallas-area facilities since 1992. Call 888-997-9465

What Performance and Compliance Records Does Envent Corporation Bring to Dallas Projects?

Envent Corporation’s field crews track emissions data and site conditions throughout every Dallas-area tank degassing project, giving your facility the documentation needed for local and federal air quality reporting, whether the work is planned maintenance or an emergency response.
Gulf Coast Refinery Tank and Vessel Degassing
  • Verified Emission Destruction: VOC and HAP destruction runs at 99.9%+ efficiency on every project, confirmed through continuous temperature monitoring and third-party stack testing. Performance is certified through EPA Method 25A and Method 18 where required by your air permit.
  • Complete Project Documentation: Every project closes with an emissions monitoring package covering temperature logs, vapor flow totalization, and regulatory compliance certification, formatted for EPA, state agency, and Title V permit reporting.
  • Zero-Incident Safety Record: Every Envent Corporation field crew member is OQ-qualified with refinery, chemical plant, and confined space entry certifications, 40-hour HAZWOPER, H2S awareness training, and ISNetworld, Avetta, and PEC SafeLand qualifications. Full record at the Safety page.
Degassing LNG Freight Vessel

Not Sure Which Service Covers Your Dallas Project?

With over 30 years of tank degassing experience across Dallas-area refineries, terminals, and chemical plants, call Envent Corporation at 888-997-9465 or Request a Quote to discuss your next project.

Featured Case Study

Gasoline Storage Tank Roof Collapse – Vapor Tank Degassing

The Problem: A structural roof collapse on a gasoline storage tank released high levels of volatile organic compounds (VOCs). This created an immediate fire risk and potential community impact, requiring urgent stabilization to meet strict air quality rules.

What We Did: Envent deployed the EMTOS (Envent Mobile Thermal Oxidation System) within hours. We set up a custom vapor recovery line to pull hazardous gasses from the tank while maintaining safe internal pressure. Our crews provided 24/7 monitoring, achieving 99.99% destruction of all gasoline vapors.

The Result: The site was safely stabilized with zero safety incidents. Envent’s fast response guaranteed 100% compliance with environmental regulators and prevented hazardous odors from affecting the surrounding area.

Our Work

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Storage & Vessel Tank Degassing in Dallas: Frequently Asked Questions

What types of storage tanks does Envent Corporation degas at Dallas-area facilities?

Envent Corporation works on fixed-roof and floating-roof storage tanks, pressure vessels, process columns, reactors, LPG spheres, and railcar and truck loading equipment across Dallas-area refineries, terminals, and chemical plants. Each vessel type requires a different approach based on product history, internal configuration, and site access conditions, all of which are reviewed before mobilization. The full scope of vessel types Envent Corporation covers is listed on the Degassing and Vapor Control page.

All projects in Texas run in compliance with Texas Commission on Environmental Quality (TCEQ) Chapter 115 emission rules and applicable Title V or minor permit conditions. VOC and HAP destruction runs at 99.9%+ efficiency on every project, and all documentation is formatted to meet TCEQ reporting requirements before the project closes.

For vessels with heavy H2S content, wet scrubbers run ahead of the vapor destruction unit to protect crew and equipment before operations begin. All H2S management is reviewed and approved under the EPA Alternative Monitoring Plan (AMP), covering your facility’s permit conditions from the start. The full scope of H2S and sour gas handling is covered on the Scrubbers and Odor Control page.

Envent Corporation coordinates vapor control during planned turnarounds alongside shutdown planners, inspection crews, and hot work teams at Dallas-area refineries. Multi-vessel projects are handled under a single scope with coordinated scheduling, keeping your turnaround on track without separate contractor management. Full details are on the Refinery Turnaround Vapor Control page.

All field crews follow OSHA 29 CFR 1910.146 for permit-required confined space entry, along with facility-specific JSA requirements and hot work authorization procedures. Every crew member holds 40-hour HAZWOPER certification, H2S awareness training, and client-specific safety qualifications including ISNetworld, Avetta, and PEC SafeLand, which means your facility’s contractor qualification requirements are met before anyone sets foot on site. Envent Corporation’s full safety record is available at the Safety page.

Every project closes with a complete emissions monitoring package covering temperature logs, vapor flow totalization, destruction efficiency calculations, and regulatory compliance certification. All documentation is formatted for EPA, TCEQ, and local agency reporting requirements, so your permit file is complete without additional formatting work on your end.

When a tank contains contaminated water bottoms or process water that needs treatment before the vessel can be cleared, Envent Corporation’s mobile water treatment systems run as a parallel scope item on the same project. This removes the need to schedule a separate contractor for water treatment, keeping your maintenance window intact. The full scope of mobile water treatment is covered on the Water Treatment page.

The vapor stream composition, product type, tank dimensions, and your permit conditions all factor into the unit configuration selected for your project. Envent Corporation’s engineers review each of these before mobilization so the right equipment arrives on site the first time, without adjustments once work begins. Completed project examples are available at Our Work.

Envent Corporation works across the full North Texas region including terminals, pipeline facilities, and chemical plants throughout the corridor, not just within Dallas city limits. For Texas Gulf Coast projects, work is covered under the Texas Gulf Coast location page, and for pipeline-specific work across the region, the full scope is on the Pipeline Degassing page.

Envent Corporation has worked for ExxonMobil, Chevron, Shell, Phillips 66, Valero, Marathon, and other Tier-1 operators across Texas over more than 30 years of operation. These are facilities with strict contractor qualification standards, and Envent Corporation meets every one of them on every project. Client testimonials and completed project details are available at Our Work and the Compliance page.

Is Your Dallas Facility Ready to Schedule a Tank Degassing Project?

Envent Corporation has handled tank degassing for refineries, terminals, and chemical plants across North Texas since 1992. Your project gets OQ-qualified crews, full regulatory documentation, and a 0.0 TRIR safety record on every scope.

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Call Us: 888-997-9465