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Vehicle emissions control is the study of reducing the emissions produced by motor vehicles, especially internal combustion engines.The primary emissions studied include hydrocarbons, volatile organic compounds, carbon monoxide, carbon dioxide, nitrogen oxides, particulate matter, and sulfur oxides.
An onboard refueling vapor recovery system (ORVR) is a vehicle fuel vapor emission control system that captures volatile organic compounds (VOC, potentially harmful vapors) during refueling. [1] [page needed] There are two types of vehicle fuel vapor emission control systems: the ORVR, and the Stage II vapor recovery system. [2]
The ability to create the vapor flash inside the tower often reduces storage tank emissions to less than six tons per year, exempting the tank battery from Quad O reporting requirements. [1] [non-primary source needed]
Control center with a programmable logic controller for a RTO. The simplest technology of thermal oxidation is direct-fired thermal oxidizer. A process stream with hazardous gases is introduced into a firing box through or near the burner and enough residence time is provided to get the desired destruction removal efficiency (DRE) of the VOCs.
SCR systems are now the preferred method for meeting Tier 4 Final and EURO 6 diesel emissions standards for heavy trucks, cars and light commercial vehicles. As a result, emissions of NOx, particulates , and hydrocarbons have been reduced by as much as 95% when compared with pre-emissions engines.
This technology is a cost efficient method to reduce and limit VOC emissions during transport and loading of volatile cargoes such as crude oil. This technology limits the VOC emissions between 60 and 80% during transport and loading. In addition to reducing air emissions and, the Knutsen VOC technology reduces H2S emission from the cargo.
Traditionally, the term "scrubber" has referred to pollution control devices that use liquid to wash unwanted pollutants from a gas stream. Recently, the term has also been used to describe systems that inject a dry reagent or slurry into a dirty exhaust stream to "wash out" acid gases. Scrubbers are one of the primary devices that control ...
Links to emission control systems in place in the world: ... Ultra-low-emission vehicle This page was last edited on 6 August 2010, at 05:03 (UTC). Text ...