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chemical injection skids , system or packages

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This is at the heart of any chemical injection system. Dispensing and handling chemicals is the Raison D'etre (the main purpose) for the system. Choice of material of construction for the wetted parts and its corrosion resistance is not just a reliability issue but also a serious safety concern. The rate at which the chemical needs to be injected directly impacts the effectiveness of the process. The pressure at which the chemical needs to be delivered would dictate the strength of the pipes and power for the driver / motor for the pump.

Here we delve deep into what chemical we are pumping, where it is coming from (source tank) and where it is going (injection point) along with the precise flow rate and the pressure it needs to overcome. Metering pumps do not perform well if the suction line is too long or too narrow. Hence the location of the supply tank in relation to the pump skid needs to be within a reasonable distance. The pipe diameter for the pump needs to be large enough so it does not offer enough restriction to starve the pump in its fill cycle. Another concern is the relation of the location of the pump to the tank chemical level on a vertical axis. If the pump has to lift the chemical from a level that is far below the pump suction port, the pump needs to be chosen with enhanced suction capabilities.

Additionally the corrosion resistance to the chemical for the pump, piping/fittings and any other component that comes in contact with the chemical needs to be carefully examined before material of construction is chosen. Often times the main material is chosen correctly to withstand corrosion while overlooking the elastomeric O-rings and/or gaskets chosen with generic material which will cause leakage due to corrosion over time.

And finally the flow rate desired needs to be selected carefully. It is recommended to choose a pump with a maximum flow capacity that is 20 to 30% more than the requirement. That way of the flow needs to be tweaked for a temporary increased demand it will be able to handle that. The pressure of the pump needs to easily overcome the back pressure of the system/pipe it is injecting into. Most people go too far with this and request a pump with a pressure capability many times over the required pressure. By choosing a pump and hence the system, piping and accessories for high pressure the customers will pay a much higher price for something they do not need and will never use. There is also a potential of safety hazard when you have chemical being pumped at a high pressure.

Worldwide Hydraulic Dosing Pump Revenue to Hit $949.3 million by 2023

According to a new market research report published by MarketsandMarkets™, The hydraulic dosing pump market is estimated to be valued at USD 949.3 million by 2023 from an estimated USD 771.8 million in 2018, at a CAGR of 4.23%. Hydraulic dosing pumps are widely used across different industries, including water treatment, industrial, manufacturing, and mining. The Increasing demand from the chemical sector and significant investments in the water & wastewater treatment industry are contributing to the growth of the hydraulic dosing pump market. Growing implementation of smart dosing technologies coupled with refining capacity additions in the Asia Pacific and the Middle East are the major opportunities for the hydraulic dosing pump market.

The Asia Pacific is expected to be the fastest-growing market for hydraulic dosing pumps from 2018 to 2023. The demand for hydraulic dosing pumps in the Asia Pacific is driven by its dynamic manufacturing sector, which remains a global powerhouse during the forecast period. Lower labor cost countries in the Asia Pacific such as China, Malaysia, Taiwan, and the Philippines are supporting their regional manufacturing sectors. Further, the increasing refining capacity, followed by setting up of new refineries in the Asia Pacific is expected to increase the demand for hydraulic dosing pumps in the region.

China, India, and the ASEAN are witnessing a significant rise in new capacity additions that have led to a growth in the demand for hydraulic dosing pumps. China and India are expected to be the two largest markets for hydraulic dosing pumps in the Asia Pacific in 2018. The growth of the manufacturing sector in these countries is supported by an increased focus on digitization by various organizations to streamline their operations to overcome considerable challenges around increasing efficiencies and unplanned downtimes.

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Major Factors to Consider in Designing and Installing a Chemical Injection Skid System | AquFlow

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This is at the heart of any chemical injection system. Dispensing and handling chemicals is the Raison D'etre (the main purpose) for the system. Choice of material of construction for the wetted parts and its corrosion resistance is not just a reliability issue but also a serious safety concern.

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Rishabh Engineering Services - Quality Engineering Solutions

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Rishabh Engineering carried out the skid design for the chemical skid package, along with the submission of the associated drawings by complying with their specifications. We were responsible for the following:

Ensure all design requirements are met considering area/equipment access, maintenance, and safety

Provide 3D model for 60%, 90% and 100% model reviews

Extract General arrangement drawings, ISOs, Tank Fabrication drawings, and MTOs

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Chemical Injection Skid Design And Engineering

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Rishabh Engineering carried out the skid design for the chemical skid package, along with the submission of the associated drawings by complying with their specifications.

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Our full range of chemical injection skids - from our UAE facility

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Flow Control & Safeguarding Wellsite Packages Safety Instrumented Systems Hydraulic Systems Chemical Injection Electrochlorination Systems Chemical Injection Frames chemical injection systems are an essential component in reducing the effects of hydrate and wax build up and associated flow assurance problems, as well as for treating produced water prior to discharge

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Properties of methanol:

Methanol is highly flammable and burns with a bright flame. It is barely visible in daylight, making it extremely dangerous. Flammable gas/air mixtures can form, and electrostatic combustion is possible (even at concentrations as low as 25%) Its decomposition products are carbon dioxide, carbon monoxide and formaldehyde.

Methanol itself is not toxic, but the enzymes that capture it in the human body form formaldehyde and formic acid. These products are highly reactive (formaldehyde) or extremely acidic (formic acid). Its reaction time in the body is 15 hours or more, so the actual cause of the poisoning often can no longer be determined. Methanol must therefore be handled with extreme caution and processed as leak-tight and leak-free as possible.

Use of LDHI:

In rare cases a methanol substitute is used, so-called LDHIs (Low Dosage Hydrate Inhibitors). This is the case when the later refining process does not tolerate methanol, since the last water preparation step is carried out biologically. The microbes that are used for the final removal of oil residues are killed by methanol. Since LDHIs are more expensive than methanol, they are only used if actually specified.

During use it must be taken into account that LDHI injection quantities are significantly lower, normally only 1/10 or 1/20 the quantity of the methanol. In addition, at high pressures (>350 bar) they can crystallize and become very abrasive and, for example, require the use of tungsten carbide valves.

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Methanol Injection with Pump Skids and Packages | LEWA

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Properties of methanol: Methanol is highly flammable and burns with a bright flame. It is barely visible in daylight, making it extremely dangerous. Flammable gas/air mixtures can form, and electrostatic combustion is possible (even at concentrations as low as 25%) Its decomposition products are carbon dioxide, carbon monoxide and formaldehyde.