Adding Value to Environmental Consulting Projects:

Trimeric is not an environmental firm.  However, our process-engineering capabilities and experience allow us to provide support as needed to firms engaged in the environmental field.  Your core business is solving your client’s environmental problems.  Our core business is solving chemical engineering problems.  We can work together.

Examples of how we have added value to Environmental Consulting Projects:

Typically, Trimeric’s staff is called in when unusual or complex process-related problems are encountered.  These problems frequently require evaluation of non-ideal thermodynamics, mass transfer, phase equilibria, or other physical/chemical process data.  Trimeric uses state-of-the-art process simulation packages to solve these problems.

Vent Condensers – Trimeric’s staff can accurately estimate control efficiencies for vent condensers (e.g., dehydrator reboiler vent condensers) when rigorous 3-phase flash calculations, often with non-ideal liquid/liquid equilibria, are required.  When data are not readily available from public literature, we use advanced physical property estimation methods or, if necessary, we can design and perform laboratory tests to obtain the data.

Vapor Pressures of Mixtures - Accurate estimation of vapor pressures for mixtures is sometimes required for storage or process tank speciated emissions calculations.  Trimeric’s staff expertly performs vapor pressure calculations for non-ideal and multiphase mixtures via accurate application of rigorous vapor-liquid equilibrium models, such as the UNIQUAC, NRTL, or Wilson activity coefficient models.

H₂S Removal BACT Analysis Support – Trimeric’s staff has extensive experience in evaluating H₂S removal and sulfur recovery technology, costs, and technical feasibility for natural gas clients, refinery clients, gasification clients, and others.  We can quickly and economically help you sort through your client’s situation, determine which technologies might be applicable, and estimate costs for each approach.  Our experience includes H₂S scavenging agents, conventional SRUs, and new sulfur recovery technologies.  We have contacts at facilities where most technologies are in use.

Scrubber Evaluations – Trimeric’s staff has evaluated numerous scrubber designs, for example aqueous scrubbing of methanol vapor process vent streams.  Trimeric uses rigorous process simulation tools and VLE modeling to predict scrubber efficiencies.

Fugitive Emissions from Manufacturing Operations – Trimeric’s staff has estimated fugitive emissions from many sources where standard emission factors were not available.  For example, fugitive emissions of methyl methacrylate monomer from an open reactor feed conveyer belt were estimated using mass-transfer coefficients.

Other Examples:

·        Analysis of ammonia emissions from wastewater treatment units at various pH levels

·        Estimation of fugitive emissions of acetylene from gasholder liquid seals

·        Fugitive emissions from opening/closing of polymerization reactors

·        Process design for vapor-phase carbon adsorption VOC control systems

·        Speciated fugitive emissions for a refinery process wastewater collection system