Yara OptiSpray now available for bulk deliveries
AdBlue producer Yara has announced that it is making its OptiSpray product available via bulk delivery, directly to customers’ storage tanks.
Like road transport vehicles, most buses, vans, agricultural and construction machinery are now equipped with selective catalytic reduction (SCR) to be fully compliant with emission regulations. The SCR catalyst needs AdBlue or other urea solutions to function.
OptiSpray has been developed and patented by Yara specifically for applications and instances where engines operate intermittently. OptiSpray prevents deposit formation in the SCR system. Based on 32.5 per cent urea solution, it conforms to the purity specifications of the ISO 22241 standard for AdBlue.
Deposit formation can occur in SCR systems when engines are idling, running at low average speed and/or with a high number of stop/starts. Agricultural and construction machinery and other low engine load applications are particularly exposed to this. Deposit build-up may in turn lead to blockages and ultimately engine failure.
With a low concentration (<0.05 per cent) of surfactant additive, OptiSpray will help in preventing deposit build-up and therefore avoid adverse effects on the SCR catalyst, says Yara – thereby reducing maintenance costs and minimising downtime, resulting in more cost-effective and efficient operations.
OptiSpray has been tested in various conditions and at low exhaust temperatures, the company reports, and demonstrated a reduction in deposit formation in all tests, while all field test results demonstrated problem-free operation. The vehicles that were tested previously used ordinary AdBlue, and had experienced SCR back-pressure alarms at unacceptable intervals.
“We have a number of customers that had experienced issues with a build-up of deposits within their equipment’s SCR system before starting to use OptiSpray, causing their vehicle to be taken out of service and requiring costly maintenance and down-time as a result,” said Kristian Reeve, OptiSpray account manager at Yara.
“Since using OptiSpray they have all experienced reductions in deposit formation and associated issues. Order and customer numbers are increasing each month as the OptiSpray message spreads through the farming and plant equipment communities.”
Users include plant hire specialist Mervyn Lambert.
Ed Morley, workshop manager of Mervyn Lambert, said: “We have trialled a range of AdBlue solutions for plant equipment working within a low temperature load application and found that none compare to OptiSpray. The nature of the environment is that the machines rarely work to their maximum and so can encounter issues with their after-treatment systems. OptiSpray all but eliminates this and provides a cost effective solution.
OptiSpray is said to be ideal for low engine-load fleets, or those operating in cold conditions. Even so, it can also be used with SCR vehicles operating with high engine loads and long distances. Users will not need to use two separate urea solution products in mixed engine load fleets, says Yara; OptiSpray will cover all their needs.
OptiSpray is available in 1,000L IBCs and also in pallets of 40 x 10L cans. As of May 2021, Yara is offering OptiSpray via bulk deliveries directly into storage tanks.
