Environment & Safety

Coke drum and blowdown system overpressure protection design—Part 2

Geronimo, G. DI, ExxonMobil Rotterdam refinery; Ceary, P. J., Markham, N., ExxonMobil Research and Engineering Co.; Groenendijk, S., Moreno, Y., Fluor

The blowdown (BD) system in delayed coking units (DCUs) receives waste streams generated during the coke drum (CD) decoking process to recover valuable hydrocarbons and water.

Engineering Case Histories: Case 106: Delayed fireball type explosions

Sofronas, A., Consulting Engineer

When a vessel containing a flammable liquid under pressure (such as those in an LNG road tanker truck) ruptures and ignites, a vapor fireball explosion can occur.

Editorial Comment: Where some see roadblocks, we see opportunities

Nichols, Lee, Hydrocarbon Processing Staff

In the January issue of Hydrocarbon Processing, the editorial comment focused on the roadmap to advancing ideas.

Business Trends: How plastics waste recycling could transform the chemical industry

If plastics demand follows its current trajectory, global plastics-waste volumes would grow from 260 MMtpy in 2016 to 460 MMtpy by 2030, taking what is already a serious environmental problem to a new level.

A cost-effective approach to monitoring dangerous hydrogen sulfide gas

Hernandez, J., Emerson Automation Solutions

Hydrogen sulfide gas (H2S) is one of the most common hazards in the oil and gas industry.

Comparative analyses of common project execution alternatives

Rentschler, C., Engineering Consultant; Shahani, G., ShureLine Construction

With major projects (FIG. 1), alternatives are generally considered in overall project execution and in construction.

Coke drum and blowdown system overpressure protection design - Part 1

The blowdown (BD) system in delayed coking units (DCUs) receives waste streams generated during the coke drum (CD) decoking process to recover valuable hydrocarbons and water. In recent DCU designs, the CD pressure relief valves (PRVs) also discharge to this system and then to the flare system via the BD PRVs.

FCC operational changes to boost gasoline octane

The fluid catalytic cracking unit (FCCU) is one of the main units providing gasoline with high-octane numbers to the refinery gasoline pool.

Ultra-deep desulfurization of FCC gasoline: Reactive adsorption strategy

Tao, Y., SINOPEC Engineering Inc.

With an increase in concern for the environment, countries around the world are implementing stringent environmental regulations and are continuously pressuring refiners to reduce the amount of sulfur in transportation fuels—primarily gasoline and diesel—to combat airborne pollution caused by vehicles.

Digital: Digitalization—Why now?

Micklem, D., KBC, a Yokogawa Company

The process industries are under threat.