The phrase "a decrease in hydrocarbon" is correct and usable in written English.
It can be used in contexts discussing environmental issues, energy production, or chemical processes where the reduction of hydrocarbons is relevant.
Example: "The new regulations aim to promote a decrease in hydrocarbon emissions from industrial sources."
Alternatives: "a reduction in hydrocarbons" or "a decline in hydrocarbon levels."
The gas chromatographic analysis of crude oil treated with these bacteria showed a decrease in heavy hydrocarbon fractions and increase in C15 C20 fractions.
Synthetic Triton X-100 caused a decrease in adhesion to hydrocarbon in the system with hydrocarbon.
The addition of phosphorus to zeolites has been reported to lead to a decrease in the formation of coke in hydrocarbon catalysis.
This decrease in hydrocarbon constituents results in an increase in the reflectivity of asphalt [55].
It was found that the inclusion of biomass produces a decrease in the amount of (polyaromatic hydrocarbons) PAHs in the condensable pyrolysis products and an increase in the concentration of CO2 in the gases, although these gases are carbon neutral.
Certainly, this effect can be observed for several hydrocarbon catalysis processes as shown in Fig. 13a and b, as the progressive reduction in the number of Brønsted acid sites with an increase in phosphorus content leads to a decrease in activity in the catalytic cracking of hydrocarbons, dehydration of alcohol and methanol-to-hydrocarbon reaction.
Biofuels, fuels from living organisms, provide environmental benefits, since their use leads to a decrease in the harmful emissions of CO2 and hydrocarbons and, to the elimination of SOx emissions, with a consequent decrease in the greenhouse effects.
Furthermore, we find that water stress causes a decrease in oxygenated monoterpene levels and a very important increase in hydrocarbon sesquiterpenes.
Besides activity, a decrease in the number of acid sites can change the selectivity in hydrocarbon catalysis reactions as well, provided that it reduces the chance of secondary reactions.
Ageing the initial precipitate led to a decrease in activity and also decreased the selectivity towards hydrocarbons.
