Emergency Scrubbers All Products

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Emergency Scrubbers

EJECTOR VENTURI PACKED TOWER

The ECS is a standard ejector–venturi, packed tower system which has been widely applied throughout industry for the absorption of various gases including chlorine. Fans are not required as the highly reliable ejector-venturi scrubber entrains the contaminated gas and causes air movement through the system. The first stage venturi is well suited to handle the high initial concentration of chlorine gas. After the gas exits the venturi the caustic is disengaged and contained within the separator. The gas then passes through the packed tower where the chlorine concentration is reduced to a level below, that required by the prevailing fire codes. A recirculation pump supplies the required caustic solution to the ejector-venturi scrubber and the packed lower.

The flow of liquid and gas is both co-current and counter-current with a liquid rate to each stage matched to absorption performance. This precludes the possibility of caustic starvation. The system has the capability to handle the worst case release rate of liquid chlorine based on total vaporization of chlorine.

The ECS 250 is designed to neutralize a 150 pound (70 kg) chlorine cylinder at a continuous leak rate of up to 20 pounds per minute (9 kg/min.; 540 kg/hr). The ECS 3000 & 5000 are designed to neutralize a one ton portable tank with a leak rate up to 437 pounds per minute (200 kg/min.; 12,000 kg/hr) throughout the leak event. An ECS 5000 system is normally considered only when the gas capacity needs to be split between two or more rooms or if a single room volume exceeds 50,000 cubic feet (1,400 m3).

World-class Emergency Scrubbers from Crystal Industrial

MULTI VENTURI PACKLESS FAN DRIVEN At only 8 feet (2.5 m) tall, the fan-driven Multi Venturi Packless (MVP) scrubber is a low profile emergency chlorine scrubber. The fan-driven MVP system consist of six venturis in series with a downstream fan which keeps the entire scrubber system under a negative pressure. Even with fan failure, the venturis will provide a system capacity of about â…” of the rated capacity, or 2,000 cubic feet per minute (CFM) (3,400 m3/hr) for a 3,000 CFM (5,100 m3/hr) system. The MVP is a low total horsepower system with a low liquid caustic pressure. Liquid and gas flow are co-current with a liquid rate of each stage matched to absorption performance, so there is no possibility of caustic starvation.

The caustic solution is supplied to each of the six venturi stages by a vertical seal-less recirculation pump. The system is available with either one or two pumps.

Advantage of the system include the lowest profile system available with the capability to handle the worst case release rate of liquid chlorine based of total vaporization of the chlorine. The chlorine concentration at the exit of the system is reduced to a level below that required by the prevailing fire codes. since there is no packing in the system, less surface area available for carbonate buildup during down periods. Therefore, a longer caustic solution services life is expected.

The MVP 3000 and 5000 are designed to neutralize a one ton chlorine portables tank at a leak rate up to 437 pounds per minute (200 kg/min.; 12,000 kg/hr) throughout the leak event.


Emergency Scrubbers Range

Accumulator Shell

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Filter Vessel

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High Pressure filter

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Cladded Vessel

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Frequently Asked Questions About Emergency Scrubbers

An Emergency Gas Scrubber is designed to control catastrophic gas releases from 68 kg (150 lb.) to over 2,727 kg (6,000 lb.) while mitigating any risk to human lives in the surrounding communities. This scrubber prevents toxic chlorine (Cl2), sulfur dioxide (SO2), or ammonia (NH3) gas releases, resulting from a failure in the storage cylinder or system, by providing immediate removal of leaking gas. Nothing is more important than protecting the safety of the people living nearby.

Scrubbing is a common name given the unit operation normally known as gas absorption. In this process,mass is transferred from the gas phase into a liquid for the purposes of removing material from the gas stream. Obviously, the material to be transferred has to be soluble in the liquid for the process to be effective and herein lies one of the most important aspects of scrubbing: selection of the proper scrubbing liquid. In most air pollution control applications, the materials to be removed are usually acidic or basic gases even though in some cases, organic vapors are also present. Most of the inorganic contaminants are sulphur, phosphorous, halogen, or nitrogen oxides or acids. In other cases, ammonia or chlorine are of concern. Wet scrubbers can achieve extremely high contaminant removals and can operate at a variety of loads. Operation and control are simple, very stable, and ideal for remote, unattended locations. Scrubbing can achieve simultaneous removal of various contaminants as well as provide a measure of gas cooling and particle emission control. With the correct configuration, a scrubber can be used to remove acids and alkalies, or even soluble organic compounds. Scrubbing produces a liquid waste stream in many cases that has to be dealt with, but in the majority of the cases, this liquid stream does not require post-treatment beyond neutralization.

Technical drawings (Move cursor to enlarge)

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