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MIT Chemical Engineers Develop New Way To Separate Crude Oil

1 month 4 weeks ago
Longtime Slashdot reader fahrbot-bot shares a report from the Cool Down: A team of chemical engineers at the Massachusetts Institute of Technology has invented a new process to separate crude oil components, potentially bringing forward a replacement that can cut its harmful carbon pollution by 90%. The original technique, which uses heat to separate crude oil into gasoline, diesel, and heating oil, accounts for roughly 1% of all global energy consumption and 6% of dirty energy pollution from the carbon dioxide it releases. "Instead of boiling mixtures to purify them, why not separate components based on shape and size?" said Zachary P. Smith, associate professor of chemical engineering at MIT and senior author of the study, as previously reported in Interesting Engineering. The team invented a polymer membrane that divides crude oil into its various uses like a sieve. The new process follows a similar strategy used by the water industry for desalination, which uses reverse osmosis membranes and has been around since the 1970s. [The membrane excelled in lab tests. It increased the toluene concentration by 20 times in a mixture with triisopropylbenzene. It also effectively separated real industrial oil samples containing naphtha, kerosene, and diesel.]

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macOS Tahoe Beta Drops FireWire Support

1 month 4 weeks ago
The first macOS Tahoe beta appears to drop support for legacy FireWire 400 and 800, making it impossible to sync or mount older iPods and external drives that rely on the standard. MacRumors reports: Unlike on macOS Sequoia and earlier versions, the first macOS Tahoe beta does not include a FireWire section in the System Settings app. Of course, this could all end up being a false alarm. It is still early in the macOS Tahoe beta testing cycle, and FireWire support could return in a later beta version, or in time for the final release. FireWire was primarily developed by Apple, but it was later standardized as IEEE 1394 and licensed for use in non-Apple devices. iPods started to transition from FireWire to USB for data transfer in 2003, so the standard is very outdated, but it would still be the end of an era if macOS Tahoe drops it. The last Mac with a FireWire port was released in 2012, so connecting older iPods and FireWire drives to newer Macs has long required the use of adapters.

Read more of this story at Slashdot.

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