"My role within the Green Chemistry Centre at the University of York (UK) is as Clean Synthesis Technology Platform Leader. Through this role I am currently supervising work being undertaken studying the application of heterogeneous catalysts and high-pressure gases for the conversion of biomass derivable compounds. As such our group has recently purchased three high-pressure reactors from H.E.L Ltd. To assist in the evaluation of our heterogeneous catalysts it is vital that stirring in the reactor vessel is control effectively and the reactor designs from H.E.L Ltd. achieve this by use of a suspended stirrer-bar system. As a result of our gas addition requirements some modification to the standard reactor designs were necessary, this being an area that H.E.L Ltd. were especially helpful in catering to our needs. From first contact with H.E.L (via Andrew Coleman), through reactor design and finally to reactor delivery H.E.L Ltd have been a pleasure to work. Throughout our interaction H.E.L Ltd. has proven to be knowledgeable, inventive and very efficient in supporting our research needs. I wholeheartedly support H.E.L Ltd. as a reliable, affordable, professional and helpful company for the design and manufacture of high-pressure equipment, and I certainly intend to use them again when such services are required. "

University of York – York, England