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Worldwide Refinery Processing Review (Individual Technology)
HYDROTREATING
Publication date:2Q 2010
Item#: B1014
Hydrotreating is a process that has become synonymous with removing impurities from petroleum feedstocks.
By mixing hydrogen and the feedstock under controlled conditions in the presence of a catalyst, contaminants in the form of sulfur-, nitrogen-, and oxygen-containing compounds, as well as metals, can be removed. Gasoline and diesel desulfurization will continue to be the primary drivers for hydrotreating over the next several years. Regulatory specifications for the acceptable levels of various compounds (i.e., sulfur, benzene, aromatics, etc.) in transportation fuels have been put in place in many regions around the world. Hydrotreating is not without drawbacks: the capital investment is significant, operating costs (catalysts and hydrogen) can be high, and by saturating aromatics and olefins, the quality of products that depend on their presence may be adversely affected.Refiners will be forced to meet increasingly stringent product specifications while processing heavier and higher-sulfur crudes. The technologies included in the Review focus on robust technological strategies to provide economical, efficient, and environmentally friendly methods to meet processing objectives. Opportunities to enhance refinery yield and quality in response to current regulatory specifications are provided in the Market/Technology Trend and Opportunities section. Furthermore, strategies focusing on controlling refinery product slate (i.e., gasoline vs. diesel) and minimizing the carbon footprint of HT processes by lowing hydrogen consumption are included in addition to the following technology advances:
- Advanced Refining Technologies's SmART selective ring opening (SRO) catalyst and new Phoenix reactivation process for Type-II catalysts;
- Criterion's CENTRA DC-2618 and DN-3630 catalysts for ULSD production;
- An updated discussion on Haldor Topsøe's TK-570 BRIM, TK-578 BRIM, and TK-607 BRIM ULSD catalysts and its TK-928 dewaxing catalyst;
- UOP's S-250 catalyst specially designed for its SelectFining process;
- Update on reactor internals offerings from Haldor Topsøe, Shell, and UOP;
- Expanded discussion on CDTECH's CDHDS and CDHDS+ catalytic distillation processes;
- Updated details on Chevron Lummus Global's ISOTREATING technology;
- Processing resid feeds and the co-processing of bio-based feeds in hydrotreating;
- A discussion of the latest patents and research papers regarding hydrotreating including novel catalytic materials, resid and renewable hydrotreating technologies, process models and simulation tools, processes that optimize and/or minimize H2 use, schemes that integrate a hydrotreater with other refinery units (FCC, HC) to maximize the yields of diesel and gasoline, and more.
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