HF alkylation definition

HF alkylation or hydrofluoric alkylation, means a refinery process which combines isobutane and C3/C4 olefins using HF acid as a catalyst to make high octane gasoline blend stock.
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Examples of HF alkylation in a sentence

  • Fuel gas streams produced in process units that are intolerant to sulfur contamination, such as fuel gas streams produced in the hydrogen plant, catalytic reforming unit, isomerization unit, and HF alkylation process units.

  • The relevance of the request to study the issues surrounding HF alkylation is attenuated rather than central to a rule affecting multiple sectors, especially prior to undertaking that study and evaluating its results.

  • Therefore, he does not speak for the CSB, and his statements referred to in States’ Supplemental Comments regarding CSB investigations, the dangers of HF alkylation, and the proposed Reconsideration rule, statements that occurred after his termination and in some cases years after his last official CSB duties occurred, do not represent recommendations from the Chemical Safety Board.

  • First, the issue of potential releases from refinery HF alkylation units was raised in several public comments on the 2018 proposed rule and responded to by EPA in the preamble to the 2019 RMP final rule and RTC.

  • The CSB’s most recent (April 2019) correspondence to EPA on the issue of HF alkylation does not recommend that EPA undertake regulatory action to ban HF alkylation, nor do CSB’s own comments submitted during the public comment period,14 so the issue of whether EPA should compel the elimination of HF alkylation through regulation is not centrally relevant to the 2019 RMP final rule.

  • Maintenance workers were removing a malfunctioning pump from the refinery's hydrofluoric acid (HF) alkylation unit when the release occurred.

  • Commit to ending the use of HF alkylation and replacing it with safer alternatives as soon as possible.

  • The 23 site survey response teams rated 32 process safety systems related to HF alkylation units.

  • Effectiveness of Safety Systems for HF-Related Processes, Storage, and Transfer Systems, Taken as a WholeSite survey teams provided overall ratings for a group of 11 safety systems that focused on process, storage, and transfer systems related to HF alkylation.

  • The most compelling data come from the knowledgeable and experienced refinery workers who operate HF alkylation units, or who would be expected to respond to an emergency.

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